WoRMS taxon details

Helix Linnaeus, 1758

153970  (urn:lsid:marinespecies.org:taxname:153970)

accepted
Genus
Species Helix albescens Rossmässler, 1839
Species Helix anctostoma Martens, 1874
Species Helix antiochiensis Kobelt, 1896
Species Helix asemnis Bourguignat, 1860
Species Helix borealis Mousson, 1859
Species Helix buchii (Dubois de Montpéreux, 1840)
Species Helix calabrica Westerlund, 1876
Species Helix caperata Montagu, 1803
Species Helix cincta O. F. Müller, 1774
Species Helix diarti Cossmann, 1907 †
Species Helix dormitoris Kobelt, 1898
Species Helix engaddensis Bourguignat, 1852
Species Helix escherichi O. Boettger, 1898
Species Helix fathallae Nägele, 1901
Species Helix figulina Rossmässler, 1839
Species Helix gussoneana L. Pfeiffer, 1848
Species Helix kazouiniana Pallary, 1939
Species Helix ligata O. F. Müller, 1774
Species Helix lucorum Linnaeus, 1758
Species Helix lutescens Rossmässler, 1837
Species Helix melanostoma Draparnaud, 1801
Species Helix mileti Kobelt, 1906
Species Helix nucula Mousson, 1854
Species Helix pachya Bourguignat, 1860
Species Helix pathetica Mousson, 1854
Species Helix pelagonesica (Rolle, 1898)
Species Helix philibinensis Rossmässler, 1839
Species Helix pomacella Mousson, 1854
Species Helix pomatella Kobelt, 1876
Species Helix pomatia Linnaeus, 1758
Species Helix pronuba Westerlund & Blanc, 1879
Species Helix salomonica Nägele, 1899
Species Helix schlaeflii Mousson, 1859
Species Helix secernenda Rossmässler, 1837
Species Helix straminea Briganti, 1825
Species Helix sublutescens Wenz in Krejci & Wenz, 1926 †
Species Helix thessalica O. Boettger, 1886
Species Helix valentini Kobelt, 1891
Species Helix veterna Meek & Hayden, 1861 †
Species Helix vladica (Kobelt, 1898)

Species Helix carinata Link, 1807 (taxon inquirendum)
Species Helix forrestiana Angas, 1875 (taxon inquirendum)
Species Helix orbiculata Férussac, 1822 (taxon inquirendum)
Species Helix prunum Férussac, 1821 (taxon inquirendum)
Species Helix subgranosa Le Guillou, 1842 (taxon inquirendum)

Species Helix gjalskii Brusina, 1902 † (nomen dubium)
Species Helix laevigata Linnaeus, 1767 accepted as Velutina laevigata (Linnaeus, 1767) (nomen dubium, original combination)
Species Helix minutialis Deshayes, 1851 (nomen dubium)
Species Helix multispirata Hombron & Jacquinot, 1852 (nomen dubium)
Species Helix oceanica Le Guillou, 1842 (nomen dubium)
Species Helix oddoi Brusina, 1902 † (nomen dubium)
Species Helix pilari Brusina, 1902 † (nomen dubium)
Species Helix rotula Hombron & Jacquinot, 1852 (nomen dubium, invalid: junior homonym of Helix rotula Lowe, 1831; no replacement name available)
Species Helix unispiralis Montagu, 1803 (nomen dubium)

Species Helix roseri F. Krauss in E. von Martens, 1860 (nomen nudum)

Subgenus Helix (Helix) Linnaeus, 1758 represented as Helix Linnaeus, 1758
  » Species Helix (Helix) albescens Rossmässler, 1839 represented as Helix albescens Rossmässler, 1839
  » Species Helix (Helix) anctostoma Martens, 1874 represented as Helix anctostoma Martens, 1874
  » Species Helix (Helix) antiochiensis Kobelt, 1896 represented as Helix antiochiensis Kobelt, 1896
  » Species Helix (Helix) asemnis Bourguignat, 1860 represented as Helix asemnis Bourguignat, 1860
  » Species Helix (Helix) borealis Mousson, 1859 represented as Helix borealis Mousson, 1859
  » Species Helix (Helix) buchii (Dubois de Montpéreux, 1840) represented as Helix buchii (Dubois de Montpéreux, 1840)
  » Species Helix (Helix) calabrica Westerlund, 1876 represented as Helix calabrica Westerlund, 1876
  » Species Helix (Helix) cincta O. F. Müller, 1774 represented as Helix cincta O. F. Müller, 1774
  » Species Helix (Helix) dormitoris Kobelt, 1898 represented as Helix dormitoris Kobelt, 1898
  » Species Helix (Helix) escherichi O. Boettger, 1898 represented as Helix escherichi O. Boettger, 1898
  » Species Helix (Helix) fathallae Nägele, 1901 represented as Helix fathallae Nägele, 1901
  » Species Helix (Helix) gussoneana L. Pfeiffer, 1848 represented as Helix gussoneana L. Pfeiffer, 1848
  » Species Helix (Helix) ligata O. F. Müller, 1774 represented as Helix ligata O. F. Müller, 1774
  » Species Helix (Helix) lucorum Linnaeus, 1758 represented as Helix lucorum Linnaeus, 1758
  » Species Helix (Helix) lutescens Rossmässler, 1837 represented as Helix lutescens Rossmässler, 1837
  » Species Helix (Helix) melanostoma Draparnaud, 1801 represented as Helix melanostoma Draparnaud, 1801
  » Species Helix (Helix) mileti Kobelt, 1906 represented as Helix mileti Kobelt, 1906
  » Species Helix (Helix) pathetica Mousson, 1854 represented as Helix pathetica Mousson, 1854
  » Species Helix (Helix) pelagonesica (Rolle, 1898) represented as Helix pelagonesica (Rolle, 1898)
  » Species Helix (Helix) philibinensis Rossmässler, 1839 represented as Helix philibinensis Rossmässler, 1839
  » Species Helix (Helix) pomacella Mousson, 1854 represented as Helix pomacella Mousson, 1854
  » Species Helix (Helix) pomatella Kobelt, 1876 represented as Helix pomatella Kobelt, 1876
  » Species Helix (Helix) pomatia Linnaeus, 1758 represented as Helix pomatia Linnaeus, 1758
  » Species Helix (Helix) pronuba Westerlund & Blanc, 1879 represented as Helix pronuba Westerlund & Blanc, 1879
  » Species Helix (Helix) schlaeflii Mousson, 1859 represented as Helix schlaeflii Mousson, 1859
  » Species Helix (Helix) secernenda Rossmässler, 1837 represented as Helix secernenda Rossmässler, 1837
  » Species Helix (Helix) straminea Briganti, 1825 represented as Helix straminea Briganti, 1825
  » Species Helix (Helix) sublutescens Wenz in Krejci & Wenz, 1926 † represented as Helix sublutescens Wenz in Krejci & Wenz, 1926 †
  » Species Helix (Helix) thessalica O. Boettger, 1886 represented as Helix thessalica O. Boettger, 1886
  » Species Helix (Helix) valentini Kobelt, 1891 represented as Helix valentini Kobelt, 1891
  » Species Helix (Helix) vladica (Kobelt, 1898) represented as Helix vladica (Kobelt, 1898)
  » Species Helix (Helix) krejcii Wenz in Krejci & Wenz, 1926 † accepted as Cepaea krejcii (Wenz in Krejci & Wenz, 1926) † (new combination)
Subgenus Helix (Pelasga) P. Hesse, 1908 represented as Helix Linnaeus, 1758

Subgenus Helix (Acanthinula) H. Beck, 1847 accepted as Acanthinula H. Beck, 1847
Subgenus Helix (Aegista) Albers, 1850 accepted as Aegista Albers, 1850
Subgenus Helix (Aerope) E. von Martens, 1890 accepted as Natalina Pilsbry, 1893
Subgenus Helix (Ampelita) H. Beck, 1837 accepted as Ampelita H. Beck, 1837
  » Species Helix (Ampelita) alluaudi Dautzenberg, 1895 accepted as Ampelita alluaudi (Dautzenberg, 1895) (original combination)
  » Species Helix (Ampelita) campbelliana Pilsbry in Tryon, 1890 accepted as Ampelita gaudens var. campbelliana (Pilsbry in Tryon, 1890) (original combination)
  » Species Helix (Ampelita) eurychila Crosse & Fischer, 1882 accepted as Ampelita sepulcralis (Férussac, 1821) (junior synonym)
  » Species Helix (Ampelita) gonostyla Ancey, 1882 accepted as Ampelita calypso (L. Pfeiffer, 1861) (junior synonym)
  » Species Helix (Ampelita) lamothei Dautzenberg, 1895 accepted as Ampelita lamothei (Dautzenberg, 1895)
  » Species Helix (Ampelita) lanciformis O. Boettger, 1889 accepted as Ampelita gaudens (Mabille, 1884) (junior synonym)
  » Species Helix (Ampelita) percyana E. A. Smith, 1880 accepted as Ampelita percyana (E. A. Smith, 1880) (original combination)
  » Species Helix (Ampelita) shavi E. A. Smith, 1879 accepted as Ampelita xystera (L. Pfeiffer, 1841) (junior synonym)
  » Species Helix (Ampelita) subatropos Dautzenberg, 1895 accepted as Ampelita subatropos (Dautzenberg, 1895) (original combination)
Subgenus Helix (Buliminopsis) Heude, 1890 accepted as Buliminopsis Heude, 1890 accepted as Pseudobuliminus Gredler, 1886 (unaccepted rank)
Subgenus Helix (Camaena) Albers, 1850 accepted as Camaena Albers, 1850 (original rank)
Subgenus Helix (Camena) E. von Martens, 1860 accepted as Camaena Albers, 1850 (invalid: unjustified emendation of Camaena)
Subgenus Helix (Caprinus) Montfort, 1810 accepted as Pleurodonte Fischer von Waldheim, 1807
Subgenus Helix (Carocolla) accepted as Caracolus Montfort, 1810 (incorrect subsequent spelling)
Subgenus Helix (Charopa) Martens, 1860 accepted as Charopa E. von Martens, 1860
  » Species Helix (Charopa) ammonitoides Brazier, 1871 accepted as Ammoniropa vigens (Legrand, 1871) (junior synonym)
  » Species Helix (Charopa) bassi Legrand, 1871 accepted as Ammoniropa vigens (Legrand, 1871) (junior synonym)
  » Species Helix (Charopa) curacoae Brazier, 1871 accepted as Protractiropa curacoae (Brazier, 1871) (original combination)
  » Species Helix (Charopa) limula Legrand, 1871 accepted as Tasmathera limula (Legrand, 1871) (original combination)
  » Species Helix (Charopa) neglecta Brazier, 1871 accepted as Planilaoma luckmanii (Brazier, 1877) (invalid: junior homonym of Helix neglecta Draparnaud, 1805)
  » Species Helix (Charopa) ricei Brazier, 1871 accepted as Tasmathera ricei (Brazier, 1871) (original combination)
  » Species Helix (Charopa) subdepressa Brazier, 1872 accepted as Meredithena dandenongensis (Petterd, 1879) (invalid: junior homonym of Helix subdepressa d'Orbigny, 1852)
  » Species Helix (Charopa) wilkinsoni Brazier, 1889 accepted as Charopella wilkinsoni (Brazier, 1889) (original combination)
Subgenus Helix (Chloritis) Beck, 1837 accepted as Chloritis H. Beck, 1837
Subgenus Helix (Cochlicella) A. Férussac, 1821 accepted as Cochlicella A. Férussac, 1821
  » Species Helix (Cochlicella) hannensis Rang, 1831 accepted as Opeas hannense (Rang, 1831) (original combination)
Subgenus Helix (Cochlicopa) accepted as Cochlicopa A. Férussac, 1821 (original rank)
Subgenus Helix (Cochlitoma) Férussac, 1821 accepted as Cochlitoma A. Férussac, 1821 (original rank)
Subgenus Helix (Cochlogena) Férussac, 1821 accepted as Bulimulus Leach, 1814
Subgenus Helix (Cochlostyla) A. Férussac, 1821 accepted as Cochlostyla A. Férussac, 1821
Subgenus Helix (Conulus) Fitzinger, 1833 accepted as Euconulus Reinhardt, 1883 (Invalid: junior homonym of Conulus Leske, 1778 [Echinodermata])
Subgenus Helix (Corasia) Albers, 1850 accepted as Chloraea Albers, 1850 (Invalid: junior homonym of Corasia Huebner, 1826 [Lepidoptera])
  » Species Helix (Corasia) anadyomene A. Adams & Angas, 1864 accepted as Crystallopsis anadyomene (A. Adams & Angas, 1864) (original combination)
  » Species Helix (Corasia) balcombei Cox, 1873 accepted as Crystallopsis balcombei (Cox, 1873) (original combination)
  » Species Helix (Corasia) psyche Angas, 1870 accepted as Crystallopsis psyche (Angas, 1870) (original combination)
  » Species Helix (Corasia) rossiteri Angas, 1869 accepted as Crystallopsis rossiteri (Angas, 1869) (original combination)
  » Species Helix (Corasia) tricolor Pfeiffer, 1850 accepted as Crystallopsis tricolor (Pfeiffer, 1850)
  » Species Helix (Corasia) wisemani Brazier, 1876 accepted as Crystallopsis wisemani (Brazier, 1876) (basionym)
  » Species Helix (Corasia) woodfordi Sowerby III, 1890 accepted as Crystallopsis woodfordi (Sowerby III, 1890) (original combination)
Subgenus Helix (Corilla) H. Adams & A. Adams, 1855 accepted as Corilla H. Adams & A. Adams, 1855
  » Species Helix (Corilla) damarensis H. Adams, 1870 accepted as Sculptaria damarensis (H. Adams, 1870) (original combination)
  » Species Helix (Corilla) pettos Martens, 1868 accepted as Endothyrella pinacis (Benson, 1859) (junior synonym)
Subgenus Helix (Cornu) Born, 1778 accepted as Cornu Born, 1778
  » Species Helix (Cornu) aspersa O. F. Müller, 1774 accepted as Cornu aspersum (O. F. Müller, 1774) (superseded combination)
Subgenus Helix (Coryda) Albers, 1850 accepted as Coryda Albers, 1850 (considered a separate genus)
Subgenus Helix (Craspedaria) R. T. Lowe, 1852 accepted as Craspedaria R. T. Lowe, 1852 (original combination)
Subgenus Helix (Crenea) Albers, 1850 accepted as Creneatachea Zilch, 1960 † (junior homonym of Crenea Risso, 1826)
Subgenus Helix (Cyrtochilus) F. Sandberger, 1875 † accepted as Cyrtochilus F. Sandberger, 1875 †
Subgenus Helix (Dentellocaracolus) Oppenheim, 1890 † accepted as Dentellocaracolus Oppenheim, 1890 †
Subgenus Helix (Dimorphoptychia) F. Sandberger, 1871 † accepted as Dimorphoptychia F. Sandberger, 1871 †
Subgenus Helix (Discus) Albers, 1850 accepted as Discus Albers, 1850 accepted as Videna H. Adams & A. Adams, 1855
  » Species Helix (Discus) cerealis Cox, 1873 accepted as Trochomorpha meleagris (L. Pfeiffer, 1855) (invalid: junior homonym of H. cerealis Crosse, 1868; H. thorpeiana Brazier, 1883 is a replacement name)
  » Species Helix (Discus) officeri Legrand, 1871 accepted as Scelidoropa officeri (Legrand, 1871) (original combination)
  » Species Helix (Discus) thorpeiana Brazier, 1883 accepted as Trochomorpha meleagris (L. Pfeiffer, 1855) (junior synonym)
  » Species Helix (Discus) vigens Legrand, 1871 accepted as Ammoniropa vigens (Legrand, 1871) (original combination)
Subgenus Helix (Discus) Fitzinger, 1833 accepted as Discus Fitzinger, 1833
Subgenus Helix (Dorcasia) Gray, 1838 accepted as Dorcasia Gray, 1838
Subgenus Helix (Endodonta) Albers, 1850 accepted as Endodonta Albers, 1850
Subgenus Helix (Epiphragmophora) Doering, 1875 accepted as Epiphragmophora Doering, 1875
Subgenus Helix (Eulota) W. Hartmann, 1841 accepted as Fruticicola Held, 1838 (a junior synonym)
Subgenus Helix (Euparypha) W. Hartmann, 1843 accepted as Theba Risso, 1826
Subgenus Helix (Eurycratera) H. Beck, 1837 accepted as Eurycratera H. Beck, 1837
Subgenus Helix (Fruticicola) Held, 1838 accepted as Fruticicola Held, 1838 (considered a separate genus)
  » Species Helix (Fruticicola) apicalis Reuss, 1861 † accepted as Leucochroopsis apicalis (Reuss, 1861) † (new combination)
  » Species Helix (Fruticicola) devexa Reuss, 1861 accepted as Apula devexa (Reuss, 1861) † (new combination)
  » Species Helix (Fruticicola) goniostoma Sandberger, 1872 † accepted as Klikia (Apula) goniostoma (Sandberger, 1872) † accepted as Apula goniostoma (Sandberger, 1872) † (new combination)
  » Species Helix (Fruticicola) homalospira Reuss, 1861 † accepted as Pseudomonacha homalospira (Reuss, 1861) † (new combination)
  » Species Helix (Fruticicola) subvillosa Sandberger, 1858 † accepted as Leucochroopsis (Palaeotrichia) subvillosa (Sandberger, 1858) † represented as Leucochroopsis subvillosa (Sandberger, 1858) † (new combination)
Subgenus Helix (Galactochilus) F. Sandberger, 1875 accepted as Polydontes (Galactochilus) F. Sandberger, 1875 represented as Polydontes Montfort, 1810 (basionym)
Subgenus Helix (Galaxias) Beck, 1837 accepted as Trigonephrus Pilsbry, 1905 (invalid: junior homonym of Galaxias Cuvier, 1816)
Subgenus Helix (Geotrochus) van Hasselt, 1823 accepted as Geotrochus van Hasselt, 1823
  » Species Helix (Geotrochus) adonis Angas, 1870 accepted as Papuina adonis (Angas, 1870) (original combination)
  » Species Helix (Geotrochus) brenchleyi Brazier, 1876 accepted as Papuina splendescens (Cox, 1865) (junior synonym)
  » Species Helix (Geotrochus) caerulescens Angas, 1870 accepted as Papuina caerulescens (Angas, 1870) (invalid: junior homonym of Helix caerulescens Gmelin, 1791)
  » Species Helix (Geotrochus) deidamia Angas, 1870 accepted as Papuina meta (L. Pfeiffer, 1856) (junior synonym)
  » Species Helix (Geotrochus) gelata Cox, 1873 accepted as Papuina gelata (Cox, 1873) (original combination)
  » Species Helix (Geotrochus) gorenduensis Brazier, 1886 accepted as Rhynchotrochus gorenduensis (Brazier, 1886) (original combination)
  » Species Helix (Geotrochus) guppyi E. A. Smith, 1885 accepted as Papuina guppyi (E. A. Smith, 1885) (original combination)
  » Species Helix (Geotrochus) gurgustii Cox, 1879 accepted as Rhynchotrochus gurgustii (Cox, 1879) (original combination)
  » Species Helix (Geotrochus) hargreavesi Angas, 1870 accepted as Papuina hargreavesi (Angas, 1870) (original combination)
  » Species Helix (Geotrochus) heimburgi Branesik, 1891 accepted as Papustyla hindei (Cox, 1886) (junior synonym)
  » Species Helix (Geotrochus) hermione Angas, 1870 accepted as Papuina hermione (Angas, 1869) (original combination)
  » Species Helix (Geotrochus) leucophaea Cox, 1872 accepted as Megalacron migratoria (Pfeiffer, 1855) (junior synonym)
  » Species Helix (Geotrochus) macfarlanei Cox, 1873 accepted as Megalacron macfarlanei (Cox, 1873) (original combination)
  » Species Helix (Geotrochus) mendoza Brazier, 1872 accepted as Papuina mendoza (Brazier, 1872) (original combination)
  » Species Helix (Geotrochus) moseleyi E. A. Smith, 1884 accepted as Helix novaegeorgiensis Cox, 1870 accepted as Megalacron novaegeorgiensis (Cox, 1870) (junior synonym)
  » Species Helix (Geotrochus) papillifera Klika, 1891 † accepted as Metacampylaea papillifera (Klika, 1891) † (new combination)
  » Species Helix (Geotrochus) philomela Angas, 1872 accepted as Papuina philomela (Angas, 1872) (original combination)
  » Species Helix (Geotrochus) redempta Cox, 1873 accepted as Papuina redempta (Cox, 1873) (original combination)
  » Species Helix (Geotrochus) strabo Brazier, 1876 accepted as Rhynchotrochus strabo (Brazier, 1876) (original combination)
  » Species Helix (Geotrochus) tapparonei E. A. Smith, 1883 accepted as Rhynchotrochus naso (Martens, 1883) (junior synonym)
  » Species Helix (Geotrochus) thomsoni E. A. Smith, 1889 accepted as Rhynchotrochus misima (Iredale, 1941) (invalid: junior homonym of H. thomsoni Pfeiffer, 1871)
  » Species Helix (Geotrochus) wiegmanni Martens, 1894 accepted as Rhynchotrochus wiegmanni (Martens, 1894) (original combination)
  » Species Helix (Geotrochus) yulensis Brazier, 1876 accepted as Rhynchotrochus yulensis (Brazier, 1876) (original combination)
Subgenus Helix (Gonostoma) Held, 1838 accepted as Helicodonta A. Férussac, 1821 (invalid: junior homonym of Gonostoma Rafinesque, 1810)
  » Species Helix (Gonostoma) baudinensis E. A. Smith, 1893 accepted as Baudinella baudinensis (E. A. Smith, 1893) (basionym)
  » Species Helix (Gonostoma) blaviana K. Miller, 1907 † accepted as Klikia praeosculina (K. Miller, 1907) † (junior synonym)
  » Species Helix (Gonostoma) collingii E. A. Smith, 1893 accepted as Setobaudinia collingii (E. A. Smith, 1893) (basionym)
  » Species Helix (Gonostoma) leubii K. Miller, 1907 † accepted as Klikia praeosculina (K. Miller, 1907) † (junior synonym)
  » Species Helix (Gonostoma) patuliformis Sacco, 1886 † accepted as Eostrobilops patuliformis (Sacco, 1886) † (new combination)
  » Species Helix (Gonostoma) praeosculina K. Miller, 1907 † accepted as Klikia praeosculina (K. Miller, 1907) † (new combination)
Subgenus Helix (Grandipatula) Cossmann, 1889 † accepted as Grandipatula Cossmann, 1889 †
Subgenus Helix (Hadra) Martens, 1860 accepted as Hadra E. von Martens, 1860
  » Species Helix (Hadra) bayensis Brazier, 1876 accepted as Figuladra bayensis (Brazier, 1876) (basionym)
  » Species Helix (Hadra) bennetti Brazier, 1872 accepted as Pallidelix bennetti (Brazier, 1872) (basionym)
  » Species Helix (Hadra) burnerensis E. A. Smith, 1894 accepted as Amplirhagada burnerensis (E. A. Smith, 1894) (basionym)
  » Species Helix (Hadra) cassandra Pfeiffer, 1864 accepted as Cupedora cassandra (Pfeiffer, 1864) (original combination)
  » Species Helix (Hadra) darwini Brazier, 1872 accepted as Spurlingia darwini (Brazier, 1872) (original combination)
  » Species Helix (Hadra) derbyi Cox, 1892 accepted as Westraltrachia derbyi (Cox, 1892) (original combination)
  » Species Helix (Hadra) evandaleana Pfeiffer, 1864 accepted as Cupedora evandaleana (Pfeiffer, 1864) (original combination)
  » Species Helix (Hadra) imitata E. A. Smith, 1894 accepted as Amplirhagada imitata (E.A. Smith, 1894) (basionym)
  » Species Helix (Hadra) lincolnensis Pfeiffer, 1864 accepted as Cupedora lincolnensis (Pfeiffer, 1864) (original combination)
  » Species Helix (Hadra) montalivetensis E. A. Smith, 1894 accepted as Amplirhagada montalivetensis (E.A. Smith, 1894) (basionym)
  » Species Helix (Hadra) oscarensis Cox, 1892 accepted as Westraltrachia oscarensis (Cox, 1892) (original combination)
  » Species Helix (Hadra) patruelis Angas, 1864 accepted as Cupedora patruelis (Angas, 1864) (basionym)
  » Species Helix (Hadra) prudhoensis E. A. Smith, 1894 accepted as Globorhagada prudhoensis (E.A. Smith, 1894)
  » Species Helix (Hadra) rufofasciata Brazier, 1875 accepted as Cupedora rufofasciata (Brazier, 1875) (basionym)
  » Species Helix (Hadra) stephensoniana Brazier, 1872 accepted as Temporena sardalabiata (Cox, 1871) (junior synonym)
  » Species Helix (Hadra) sublorioliana Pilsbry, 1890 accepted as Cupedora sublorioliana (Pilsbry, 1890) (basionym)
  » Species Helix (Hadra) sykesi E. A. Smith, 1894 accepted as Amplirhagada sykesi (E.A. Smith, 1894) (basionym)
Subgenus Helix (Helicella) Gray, 1847 accepted as Helicella A. Férussac, 1821
Subgenus Helix (Helicigona) Férussac, 1821 accepted as Helicigona A. Férussac, 1821
Subgenus Helix (Helicogena) A. Férussac, 1821 accepted as Helix Linnaeus, 1758 (junior synonym)
Subgenus Helix (Helicophanta) A. Férussac, 1821 accepted as Helicophanta A. Férussac, 1821
Subgenus Helix (Hemistenotrema) O. Boettger, 1897 † accepted as Hemistenotrema O. Boettger, 1897 †
Subgenus Helix (Hyalina) S. Studer, 1820 accepted as Vitrina Draparnaud, 1801 (junior objective synonym)
Subgenus Helix (Hygromia) Risso, 1826 accepted as Hygromia Risso, 1826
  » Species Helix (Hygromia) bednalli Brazier, 1872 accepted as Cupedora bednalli (Brazier, 1872) (original combination)
Subgenus Helix (Iberus) Montfort, 1810 accepted as Iberus Montfort, 1810
Subgenus Helix (Jacosta) Gray, 1821 accepted as Xerosecta Monterosato, 1892 (inalid: Placed on Index)
  » Species Helix (Jacosta) amphiconus Maltzan, 1883 accepted as Xerocrassa amphiconus (Maltzan, 1883) (original combination)
Subgenus Helix (Levantina) Kobelt, 1871 accepted as Levantina Kobelt, 1871
  » Species Helix (Levantina) arnoldi Rolle in Kobelt, 1895 accepted as Levantina caesareana (Mousson, 1854) (junior synonym)
  » Species Helix (Levantina) caesareana Mousson, 1854 accepted as Levantina caesareana (Mousson, 1854)
  » Species Helix (Levantina) eliae Kobelt, 1895 accepted as Levantina caesareana (Mousson, 1854) (junior synonym)
  » Species Helix (Levantina) gerstenbrandti Kobelt, 1895 accepted as Levantina caesareana (Mousson, 1854) (junior synonym)
  » Species Helix (Levantina) praecellens Naegele, 1901 accepted as Amanica praecellens (Naegele, 1901) (basionym)
  » Species Helix (Levantina) ramlensis Rolle in Kobelt, 1895 accepted as Levantina caesareana (Mousson, 1854) (junior synonym)
  » Species Helix (Levantina) transjordanica Kobelt, 1896 accepted as Levantina caesareana (Mousson, 1854) (junior synonym)
  » Species Helix (Levantina) werneri Kobelt, 1889 accepted as Levantina caesareana (Mousson, 1854) (junior synonym)
Subgenus Helix (Macrocyclis) Beck, 1837 accepted as Macrocyclis H. Beck, 1837
Subgenus Helix (Macularia) Albers, 1850 accepted as Macularia Albers, 1850
Subgenus Helix (Mesodon) A. Férussac, 1821 accepted as Mesodon A. Férussac, 1821
Subgenus Helix (Microcystis) Beck, 1837 accepted as Microcystis H. Beck, 1837
  » Species Helix (Microcystis) catletti Brazier, 1872 accepted as Innesoconcha catletti (Brazier, 1872) (original combination)
Subgenus Helix (Nanina) Gray, 1834 accepted as Nanina Gray, 1834 accepted as Xesta Albers, 1850 (superseded combination)
  » Species Helix (Nanina) cleamesi E. A. Smith, 1882 accepted as Kalidos cleamesi (E. A. Smith, 1882) (original combination)
  » Species Helix (Nanina) nyassana E. A. Smith, 1881 accepted as Thapsia nyassana (E. A. Smith, 1881) (original combination)
Subgenus Helix (Obba) Beck, 1837 accepted as Obba H. Beck, 1837
  » Species Helix (Obba) goldiei Brazier, 1884 accepted as Meliobba goldiei (Brazier, 1884) (original combination)
  » Species Helix (Obba) langsonensis Bavay & Dautzenberg, 1899 accepted as Neocepolis merarcha (Mabille, 1888) (junior synonym)
  » Species Helix (Obba) oxystoma E. A. Smith, 1883 accepted as Meliobba goldiei (Brazier, 1884) (invalid: junior homonym of Helix oxystoma Thomae, 1845)
Subgenus Helix (Obbinula) Stache, 1889 † accepted as Obbinula Stache, 1889 †
Subgenus Helix (Omalonyx) d'Orbigny, 1838 accepted as Omalonyx d'Orbigny, 1838 (original rank)
Subgenus Helix (Papuina) Martens, 1860 accepted as Papuina E. von Martens, 1860
  » Species Helix (Papuina) albocarinata E. A. Smith, 1887 accepted as Rhynchotrochus albocarinatus (E. A. Smith, 1887) (original combination)
  » Species Helix (Papuina) amphizona Pilsbry, 1891 accepted as Papustyla chancei (Cox, 1870) (junior synonym)
  » Species Helix (Papuina) lintschuana Kobelt, 1894 accepted as Meliobba lintschuana (Kobelt, 1894) (original combination)
  » Species Helix (Papuina) phaeostoma Martens, 1878 accepted as Megalacron phaeostoma (Pfeiffer, 1877)
  » Species Helix (Papuina) rollsiana E. A. Smith, 1887 accepted as Rhynchotrochus rollsianus (E. A. Smith, 1887) (original combination)
  » Species Helix (Papuina) roseolabiata E. A. Smith, 1887 accepted as Rhynchotrochus strabo (Brazier, 1876) (junior synonym)
  » Species Helix (Papuina) walleri Brazier, 1883 accepted as Papuina walleri (Brazier, 1883) (original combination)
Subgenus Helix (Parachloraea) Sandberger, 1873 † accepted as Parachloraea Sandberger, 1873 † (considered a separate genus)
  » Species Helix (Parachloraea) arneggensis K. Miller, 1907 † accepted as Parachloraea arneggensis (K. Miller, 1907) † (Parachloraea is considered a separate genus)
Subgenus Helix (Pararhytida) Ancey, 1882 accepted as Pararhytida Ancey, 1882 (original rank)
Subgenus Helix (Patula) Held, 1837 accepted as Discus Fitzinger, 1833
  » Species Helix (Patula) falcifera O. Boettger, 1870 † accepted as Pleurodiscoides (Pleurodiscoides) falcifera (O. Boettger, 1870) † represented as Pleurodiscoides falcifera (O. Boettger, 1870) † (new combination)
  » Species Helix (Patula) paludinaeformis (Sandberger, 1858) † accepted as Acanthinula paludinaeformis (Sandberger, 1858) † (new combination)
  » Species Helix (Patula) somersetensis Melvill & Ponsonby, 1893 accepted as Trachycystis somersetensis (Melvill & Ponsonby, 1893) (original combination)
  » Species Helix (Patula) subteres Clessin, 1877 † accepted as Lucilla subteres (Clessin, 1877) † (new combination)
  » Species Helix (Patula) unwini Brazier, 1889 accepted as Hawaiia minuscula (Binney, 1841) (junior synonym)
  » Species Helix (Patula) viridescens Melvill & Ponsonby, 1891 accepted as Natella viridescens (Melvill & Ponsonby, 1891) (basionym)
Subgenus Helix (Pella) E. von Martens, 1860 accepted as Trachycystis Pilsbry, 1893 (synonym)
  » Species Helix (Pella) actinotrichia Melvill & Ponsonby, 1892 accepted as Chilocystis actinotrichia (Melvill & Ponsonby, 1892) (original combination)
  » Species Helix (Pella) bathycoele Melvill & Ponsonby, 1892 accepted as Trachycystis bathycoele (Melvill & Ponsonby, 1892) (original combination)
  » Species Helix (Pella) burnupi Melvill & Ponsonby, 1892 accepted as Chalcocystis burnupi (Melvill & Ponsonby, 1892) (original combination)
  » Species Helix (Pella) conisalea Melvill & Ponsonby, 1892 accepted as Chilocystis conisalea (Melvill & Ponsonby, 1892) (original combination)
  » Species Helix (Pella) crawfordi Melvill & Ponsonby, 1890 accepted as Sheldonia crawfordi (Melvill & Ponsonby, 1890) (original combination)
  » Species Helix (Pella) epetrima Melvill & Ponsonby, 1892 accepted as Phaulocystis turmalis (Morelet, 1889) (synonym)
  » Species Helix (Pella) erateina Melvill & Ponsonby, 1892 accepted as Lyrocystis prionacis (Benson, 1864) (synonym)
  » Species Helix (Pella) liricostata Melvill & Ponsonby, 1891 accepted as Trachycystis liricostata (Melvill & Ponsonby, 1891) (original combination)
  » Species Helix (Pella) lygaea Melvill & Ponsonby, 1892 accepted as Chilocystis lygaea (Melvill & Ponsonby, 1892) (original combination)
  » Species Helix (Pella) minythodes Melvill & Ponsonby, 1892 accepted as Sheldonia crawfordi (Melvill & Ponsonby, 1890) (synonym)
  » Species Helix (Pella) namaquana E. von Martens, 1889 accepted as Xerocystis capensis var. namaquana (E. von Martens, 1889) (original combination)
  » Species Helix (Pella) rhysodes Melvill & Ponsonby, 1892 accepted as Lyrocystis perplicata (Benson, 1851) (synonym)
  » Species Helix (Pella) strobilodes Melvill & Ponsonby, 1893 accepted as Chilocystis trichosteiroma (Melvill & Ponsonby, 1892) (synonym)
  » Species Helix (Pella) trichosteiroma Melvill & Ponsonby, 1892 accepted as Chilocystis trichosteiroma (Melvill & Ponsonby, 1892) (original combination)
  » Species Helix (Pella) turguriolum Melvill & Ponsonby, 1892 accepted as Trachycystis (Trachycystis) tollini (Benson, 1856) represented as Trachycystis tollini (Benson, 1856) (synonym)
Subgenus Helix (Phania) E. von Martens, 1860 accepted as Pyrochilus Pilsbry, 1893
Subgenus Helix (Phasis) Albers, 1850 accepted as Phasis Albers, 1850 accepted as Phortion Preston, 1910
  » Species Helix (Phasis) meruensis D'Ailly, 1910 accepted as Halolimnohelix meruensis (D'Ailly, 1910) (original combination)
Subgenus Helix (Pileolus) Lesson, 1831 accepted as Megalacron I. Rensch, 1934 (Invalid: junior homonym of Pileolus G.B. Sowerby I, 1823)
Subgenus Helix (Pitys) Mörch, 1852 accepted as Pitys Mörch, 1852
Subgenus Helix (Planispira) Beck, 1837 accepted as Planispira H. Beck, 1837 (original rank)
Subgenus Helix (Plectopylis) Benson, 1860 accepted as Plectopylis Benson, 1860 (original rank)
  » Species Helix (Plectopylis) minor Godwin-Austen, 1879
  » Species Helix (Plectopylis) andersoni W. Blanford, 1869 accepted as Hunyadiscus andersoni (W. Blanford, 1869) (basionym)
  » Species Helix (Plectopylis) brachyplecta Benson, 1863 accepted as Chersaecia brachyplecta (Benson, 1863) (original combination)
  » Species Helix (Plectopylis) brahma Godwin-Austen, 1879 accepted as Endothyrella brahma (Godwin-Austen, 1879) (basionym)
  » Species Helix (Plectopylis) feddeni Blanford, 1865 accepted as Chersaecia feddeni (Blanford, 1865) (original combination)
  » Species Helix (Plectopylis) francoisi H. Fischer, 1899 accepted as Plectopylis francoisi H. Fischer, 1899 accepted as Gudeodiscus francoisi (H. Fischer, 1899) (entry in volume index, p. 346)
  » Species Helix (Plectopylis) fultoni Godwin-Austen, 1892 accepted as Endothyrella fultoni (Godwin-Austen, 1892) (basionym)
  » Species Helix (Plectopylis) leiophis Benson, 1860 accepted as Chersaecia leiophis (Benson, 1860) (basionym)
  » Species Helix (Plectopylis) macromphalus W. Blanford, 1870 accepted as Endothyrella macromphalus (W. Blanford, 1870) (basionym)
  » Species Helix (Plectopylis) nagaensis Godwin-Austen, 1875 accepted as Chersaecia nagaensis nagaensis (Gude, 1897) (original combination)
  » Species Helix (Plectopylis) oglei Godwin-Austen, 1879 accepted as Endothyrella oglei (Godwin-Austen, 1879) (basionym)
  » Species Helix (Plectopylis) perarcta Blanford, 1865 accepted as Chersaecia perarcta perarcta (Blanford, 1865) (original combination)
  » Species Helix (Plectopylis) ponsonbyi Godwin-Austen, 1888 accepted as Chersaecia feddeni (Blanford, 1865) (junior synonym)
  » Species Helix (Plectopylis) refuga (Gould, 1846) accepted as Chersaecia refuga Gould, 1846 (original combination)
  » Species Helix (Plectopylis) schlumbergeri Morlet, 1886 accepted as Halongella schlumbergeri (Morlet, 1886) (basionym)
  » Species Helix (Plectopylis) serica Godwin-Austen, 1875 accepted as Endothyrella serica (Godwin-Austen, 1875) (basionym)
  » Species Helix (Plectopylis) shiroiensis Godwin-Austen, 1875 accepted as Chersaecia shiroiensis shiroiensis (Godwin-Austen, 1875) (original combination)
  » Species Helix (Plectopylis) trilamellaris Godwin-Austen, 1875 accepted as Chersaecia shanensis (Stoliczka, 1873) (junior synonym)
Subgenus Helix (Plectotropis) Martens, 1860 accepted as Plectotropis E. von Martens, 1860
  » Species Helix (Plectotropis) fulvicans H. Adams, 1866 accepted as Aegista fulvicans (H. Adams, 1866) (original combination)
  » Species Helix (Plectotropis) howardi Angas, 1869 accepted as Contramelon howardi (Angas, 1869) (original combination)
Subgenus Helix (Poecilostola) Ancey, 1886 accepted as Epiphragmophora (Pilsbrya) Ancey, 1887 represented as Epiphragmophora Doering, 1875 (invalid: junior homonym of Poecilostola Schiner, 1863 [Diptera]; Pilsbrya is a replacement name)
Subgenus Helix (Polygyra) Say, 1818 accepted as Polygyra Say, 1818
Subgenus Helix (Pseudotachea) C.R. Boettger, 1909 † accepted as Pseudotachea C.R. Boettger, 1909
Subgenus Helix (Pyramidula) Fitzinger, 1833 accepted as Pyramidula Fitzinger, 1833
Subgenus Helix (Rhagada) Albers, 1860 accepted as Rhagada Albers, 1860
Subgenus Helix (Rhytida) Martens, 1860 accepted as Rhytida E. von Martens, 1860
Subgenus Helix (Sagdellina) Cossmann, 1889 † accepted as Sagdellina Cossmann, 1889 †
Subgenus Helix (Satsuma) A. Adams, 1868 accepted as Satsuma A. Adams, 1868 (original rank)
  » Species Helix (Satsuma) albida H. Adams, 1870 accepted as Satsuma albida (H. Adams, 1870) (original combination)
Subgenus Helix (Sculptaria) L. Pfeiffer, 1855 accepted as Sculptaria L. Pfeiffer, 1855 (distinct genus)
Subgenus Helix (Sesara) Albers, 1860 accepted as Sesara Albers, 1860 (original rank)
Subgenus Helix (Stenotrema) Rafinesque, 1819 accepted as Stenotrema Rafinesque, 1819
Subgenus Helix (Systenostoma) Bavay & Dautzenberg, 1909 accepted as Systenostoma Bavay & Dautzenberg, 1909 accepted as Tonkinospira Jochum, Slapnik & Páll-Gergely, 2014 (original rank)
Subgenus Helix (Tachea) W. Turton, 1831 accepted as Cepaea Held, 1838 (Invalid: junior homonym of Tachea Fleming, 1822 [Aves])
Subgenus Helix (Thalassia) Martens, 1860 accepted as Nitor Gude, 1911 (Invalid: junior homonym of Thalassia Dejean, 1835 [Coleoptera] and Thalassia Bonaparte, 1856 [Aves])
Subgenus Helix (Trachia) E. von Martens, 1860 accepted as Trachia E. von Martens, 1860 (original combination)
Subgenus Helix (Trachycystis) Pilsbry, 1893 accepted as Trachycystis Pilsbry, 1893
Subgenus Helix (Trichia) Hartmann, 1840 accepted as Trochulus Chemnitz, 1786 (Invalid: junior homonym of Trichia De Haan, 1839 [Crustacea].)
Subgenus Helix (Trigonostoma) Fitzinger, 1833 accepted as Helicodonta A. Férussac, 1821 (Invalid: Junior homonym of Trigonostoma Blainville, 1825 [Cancellariidae]; also a junior objective synonym of Helicodonta)
Subgenus Helix (Trochomorpha) Albers, 1850 accepted as Trochomorpha Albers, 1850 (original rank)
Subgenus Helix (Trochonanina) Mousson, 1869 accepted as Trochonanina Mousson, 1869 (superseded combination)
Subgenus Helix (Trochozonites) Pfeffer, 1883 accepted as Trochozonites Pfeffer, 1883 (distinct genus)
Subgenus Helix (Vallonia) Risso, 1826 accepted as Vallonia Risso, 1826
Subgenus Helix (Videna) H. Adams & A. Adams, 1855 accepted as Videna H. Adams & A. Adams, 1855
Subgenus Helix (Xanthomelon) Martens, 1860 accepted as Xanthomelon E. von Martens, 1860
Subgenus Helix (Xerophila) Held, 1838 accepted as Theba Risso, 1826
Subgenus Helix (Xesta) Albers, 1850 (unaccepted)
Subgenus Helix (Zonites) Montfort, 1810 (unaccepted, considered a separate genus)
Species Helix aberrata Souleyet, 1852 (unaccepted, original combination)
Species Helix abjecta R. T. Lowe, 1831 (unaccepted)
Species Helix abyssorum d'Orbigny, 1835 (unaccepted, original combination)
Species Helix acetabulum Pease, 1861 (unaccepted, junior synonym)
Species Helix achates Rossmässler, 1835 (unaccepted, original combination)
Species Helix acmella L. Pfeiffer, 1860 (unaccepted, junior synonym)
Species Helix actinophora R. T. Lowe, 1831 (unaccepted, original combination)
Species Helix acuta Lamarck, 1816 (unaccepted, invalid: junior homonym of Helix acuta O.F. Müller, 1774)
Species Helix acuta O. F. Müller, 1774 (unaccepted, original combination)
Species Helix adamnis Dall, 1890 † (unaccepted, new combination)
Species Helix adansoniae Morelet, 1848 (unaccepted, original combination)
Species Helix adolfi L. Pfeiffer, 1854 (unaccepted, original combination)
Species Helix aecouria Letourneux & Bourguignat, 1887 (unaccepted, junior synonym)
Species Helix aemula L. Pfeiffer, 1852 (unaccepted, junior synonym)
Species Helix aenea F. Krauss, 1848 (unaccepted, original combination)
Species Helix afra Gmelin, 1791 (unaccepted, synonym)
Species Helix africae A.D. Brown, 1865 (unaccepted, original combination)
Species Helix aggiei Heimburg, 1890 (unaccepted, junior synonym)
Species Helix aigenensis Tausch, 1886 † (unaccepted, new combination)
Species Helix alfredi Cox, 1871 (unaccepted, original combination)
Species Helix algira Linnaeus, 1758 (unaccepted, original combination)
Species Helix algiroides Reuss in Reuss & Meyer, 1849 † (unaccepted, new combination)
Species Helix allasteri Cox, 1873 (unaccepted, junior synonym)
Species Helix allecta Cox, 1870 (unaccepted, original combination)
Species Helix alloiodes Thomä, 1845 † (unaccepted, new combination)
Species Helix alpha L. Pfeiffer, 1853 (unaccepted)
Species Helix alveolus Gassies, 1881 (unaccepted, original combination)
Species Helix alveus Sandberger, 1875 † (unaccepted, new combination)
Species Helix amarula Linnaeus, 1758 (unaccepted, original combination)
Species Helix ambigua Linnaeus, 1758 (unaccepted, original combination)
Species Helix amphibulima Férussac, 1839 (unaccepted, original combination)
Species Helix ampullacea Linnaeus, 1758 (unaccepted, original combination)
Species Helix andersoni W. Blanford, 1869 (unaccepted, original combination)
Species Helix angasiana Newcomb, 1862 (unaccepted, junior synonym)
Species Helix angistoma Férussac, 1821 (unaccepted)
Species Helix annatonensis L. Pfeiffer, 1854 (unaccepted, original combination)
Species Helix antelata Cox, 1870 (unaccepted, junior synonym)
Species Helix anthracophila Stache in F. Sandberger, 1871 † (unaccepted, new combination)
Species Helix antialba Petterd, 1879 (unaccepted)
Species Helix aorangi Suter, 1890 (unaccepted)
Species Helix aphrodite Pfeiffer, 1859 (unaccepted, original combination)
Species Helix apia Hombron & Jacquinot, 1852 (unaccepted, original combination)
Species Helix apiculus L. Pfeiffer, 1849 (unaccepted, junior synonym)
Species Helix appendiculata Reeve, 1854 (unaccepted, original combination)
Species Helix aprica F. Krauss, 1848 (unaccepted, original combination)
Species Helix arachne Morelet, 1877 (unaccepted, original combination)
Species Helix aranea L. Pfeiffer, 1871 (unaccepted, junior synonym)
Species Helix arboreus Say, 1817 (unaccepted, original combination)
Species Helix arcadica L. Pfeiffer, 1853 (unaccepted, original combination)
Species Helix ardua Cox, 1870 (unaccepted, junior synonym)
Species Helix arenicola Tate, 1878 (unaccepted, junior synonym)
Species Helix argentina Holmberg, 1909 (unaccepted, original combination)
Species Helix argilacea Férussac, 1821 (unaccepted)
Species Helix arnoldii Thomä, 1845 † (unaccepted, new combination)
Species Helix arnotti Benson, 1864 (unaccepted, original combination)
Species Helix arnoudii Michaud, 1837 † (unaccepted, new combination)
Species Helix aspera Gmelin, 1791 (unaccepted, junior synonym)
Species Helix asperella L. Pfeiffer, 1846 (unaccepted, original combination)
Species Helix aspersa O.F. Müller, 1774 (unaccepted, original combination)
Species Helix atlantica Morelet & Drouët, 1857 (unaccepted, original combination)
Species Helix atrolabiata Krynicki, 1833 (unaccepted, original combination)
Species Helix atropos Férussac, 1840 (unaccepted, original combination)
Species Helix audouini d'Orbigny, 1835 (unaccepted, original combination)
Species Helix aulacophora Ancey, 1890 (unaccepted, original combination)
Species Helix aulacospira L. Pfeiffer, 1846 (unaccepted, original combination)
Species Helix auricularia Linnaeus, 1758 (unaccepted, original combination)
Species Helix auriscaprina Férussac, 1821 (unaccepted, junior synonymy)
Species Helix aurismalchi O. F. Müller, 1774 (unaccepted, name suppressed by ICZN Opinion 1662)
Species Helix australis Férussac, 1821 (unaccepted, original combination)
Species Helix bacca L. Pfeiffer, 1866 (unaccepted, original combination)
Species Helix bailloni Kobelt, 1888 (unaccepted, original combination)
Species Helix balcanica L. Pfeiffer, 1853 (unaccepted, original combination)
Species Helix balmei Potiez & Michaud, 1838 (unaccepted, original combination)
Species Helix balstoni Angas, 1877 (unaccepted, original combination)
Species Helix balthica Linnaeus, 1758 (unaccepted, original combination)
Species Helix banneri Pfeiffer, 1863 (unaccepted, original combination)
Species Helix barbatula Reeve, 1852 (unaccepted)
Species Helix barnaclei E. A. Smith, 1877 (unaccepted, junior synonym)
Species Helix barrakporensis L. Pfeiffer, 1854 (unaccepted, original combination)
Species Helix barrenensis Petterd, 1879 (unaccepted, original combination)
Species Helix bascauda Benson, 1859 (unaccepted, original combination)
Species Helix bathyomphala L. Pfeiffer, 1848 (unaccepted, junior synonym)
Species Helix bazini Crosse, 1874 (unaccepted, original combination)
Species Helix beatrix Angas, 1876 (unaccepted, junior synonym)
Species Helix beaumontii Matheron, 1842 † (unaccepted, new combination)
Species Helix bellengenensis Brazier, 1871 (unaccepted, junior synonym)
Species Helix bellengerensis Cox, 1871 (unaccepted, original combination)
Species Helix belli Cox, 1864 (unaccepted, original combination)
Species Helix belmorei Cox, 1872 (unaccepted, original combination)
Species Helix bennetti Brazier, 1872 (unaccepted, original combination)
Species Helix berlieri Crosse, 1875 (unaccepted, original combination)
Species Helix bernardii Michaud, 1862 † (unaccepted, new combination)
Species Helix berthelini Deshayes, 1863 † (unaccepted)
Species Helix bewsheriana Morelet, 1875 † (unaccepted, original combination)
Species Helix biconcava L. Pfeiffer, 1853 (unaccepted)
Species Helix bifoveata Benson, 1856 (unaccepted, original combination)
Species Helix bimaensis Mousson, 1849 (unaccepted, original combination)
Species Helix binaria L. Pfeiffer, 1856 (unaccepted, original combination)
Species Helix biocheana Crosse, 1870 (unaccepted, junior synonym)
Species Helix bipartita Férussac, 1823 (unaccepted, original combination)
Species Helix bisculpta Benson, 1851 (unaccepted, original combination)
Species Helix bitaeniata Cox, 1868 (unaccepted, original combination)
Species Helix blanda Cox, 1873 (unaccepted, junior synonym)
Species Helix boghariensis Debeaux, 1857 (unaccepted, junior synonym)
Species Helix boissieri Charpentier, 1847 (unaccepted, preoccupied name)
Species Helix boivinii Petit de la Saussaye, 1841 (unaccepted, original combination)
Species Helix bonduelliana Bourguignat, 1863 (unaccepted, junior synonym)
Species Helix boryana Morelet, 1875 (unaccepted, junior synonym)
Species Helix botterii L. Pfeiffer, 1853 (unaccepted, original combination)
Species Helix bougainvillei Pfeiffer, 1860 (unaccepted, original combination)
Species Helix bourailensis Gassies, 1872 (unaccepted, original combination)
Species Helix boyerii Fischer & Bernardi, 1857 (unaccepted, original combination)
Species Helix braunii Thomä, 1845 † (unaccepted, new combination)
Species Helix brazieri Cox, 1868 (unaccepted, original combination)
Species Helix brenchleyi Angas, 1879 (unaccepted, invalid: junior homonym of Helix brenchleyi Brazier, 1875)
Species Helix brevibarbis Pfeiffer, 1859 (unaccepted, original combination)
Species Helix brevipes Draparnaud, 1805 (unaccepted, original combination)
Species Helix brevipila L. Pfeiffer, 1849 (unaccepted, original combination)
Species Helix brodiei Brazier, 1872 (unaccepted, original combination)
Species Helix broughami Angas, 1875 (unaccepted, original combination)
Species Helix browningii Benson, 1864 (unaccepted, synonym)
Species Helix brunonis Kobelt, 1894 (unaccepted, original combination)
Species Helix bursatella Gould, 1846 (unaccepted, original combination)
Species Helix busbyi Gray, 1850 (unaccepted)
Species Helix buttoni Petterd, 1879 (unaccepted, junior synonym)
Species Helix cabriti Gassies, 1863 (unaccepted, original combination)
Species Helix caeca Guppy, 1868 (unaccepted, synonym)
Species Helix caerulescens Gmelin, 1791 † (unaccepted, new combination)
Species Helix caesareana Mousson, 1854 (unaccepted, original combination)
Species Helix cafra A. Férussac, 1821 (unaccepted, new combination)
Species Helix cailleti Crosse, 1864 (unaccepted, junior synonym)
Species Helix calcarea L. Pfeiffer, 1849 (unaccepted, junior synonym)
Species Helix calculosa Gould, 1852 (unaccepted, original combination)
Species Helix calliope Crosse, 1869 (unaccepted, original combination)
Species Helix calypso L. Pfeiffer, 1861 (unaccepted, original combination)
Species Helix cambojiensis Reeve, 1860 (unaccepted, original combination)
Species Helix camelina Bourguignat, 1852 (unaccepted, original combination)
Species Helix campbelli Gray, 1834 (unaccepted, original combination)
Species Helix campesina L. Pfeiffer, 1846 (unaccepted, original combination)
Species Helix candescens C. B. Adams, 1850 (unaccepted)
Species Helix candicans L. Pfeiffer, 1841 (unaccepted, junior synonym)
Species Helix candidissima Draparnaud, 1801 (unaccepted, original combination)
Species Helix candiota L. Pfeiffer, 1849 (unaccepted, original combination)
Species Helix candisata L. Pfeiffer, 1846 (unaccepted, original combination)
Species Helix canovarii Tapparone-Canefri, 1883 (unaccepted, original combination)
Species Helix capensis L. Pfeiffer, 1841 (unaccepted, original combination)
Species Helix capillata Pease, 1866 (unaccepted, original combination)
Species Helix capsula Benson, 1864 (unaccepted, original combination)
Species Helix caputspinulae Reeve, 1852 (unaccepted)
Species Helix carcharias Pfeiffer, 1864 (unaccepted, original combination)
Species Helix carinata Hombron & Jacquinot, 1841 (unaccepted, invalid: junior homonym of Helix carinata Link, 1807)
Species Helix carinatissima Sacco, 1886 † (unaccepted, new combination)
Species Helix carinulata Klein, 1853 † (unaccepted, junior synonym)
Species Helix cariosa Olivier, 1804 (unaccepted, original combination)
Species Helix carmelita Férussac, 1821 (unaccepted, non Lichenstein, 1794)
Species Helix carmelita Tristram, 1865 (unaccepted, junior synonym; preoccupied by Helix carmelita Férussac, 1821)
Species Helix carocolla Linnaeus, 1758 (unaccepted, original combination)
Species Helix carteriensis Quoy & Gaimard, 1832 (unaccepted)
Species Helix cartusiana O. F. Müller, 1774 (unaccepted, original combination)
Species Helix castra Benson, 1852 (unaccepted)
Species Helix cavata Mousson, 1854 (unaccepted, junior synonym)
Species Helix cavernula L. Pfeiffer, 1853 (unaccepted, invalid: junior homonym of Helix cavernula Hombron & Jacquinot, 1852)
Species Helix cavernula Hombron & Jacquinot, 1847 (unaccepted, junior synonym)
Species Helix cazenavetti Fischer & Bernardi, 1857 (unaccepted, junior synonym)
Species Helix cellaria O. F. Müller, 1774 (unaccepted)
Species Helix cepoides Lea, 1840 (unaccepted, original combination)
Species Helix cerata Cox, 1868 (unaccepted, replacement name for Helix cerea Cox, 1864 (Helix coxi Crosse, 1866 is an earlier replacement name))
Species Helix cerea L. Pfeiffer, 1851 (unaccepted, invalid; junior homonym of Helix cerea Gould, 1850)
Species Helix cerea Cox, 1864 (unaccepted, invalid: junior homonym of Helix cerea Gould, 1850)
Species Helix cerina Morelet, 1877 (unaccepted, original combination)
Species Helix cernua E. von Martens, 1889 (unaccepted, original combination)
Species Helix ceromatica Morelet, 1881 (unaccepted, original combination)
Species Helix cespitum Draparnaud, 1801 (unaccepted, original combination)
Species Helix chaixi Michaud, 1855 † (unaccepted, incorrect subsequent spelling; new combination)
Species Helix chaixii Michaud, 1855 † (unaccepted, new combination)
Species Helix chamaeleon L. Pfeiffer, 1868 (unaccepted, original combination)
Species Helix chancei Cox, 1870 (unaccepted, original combination)
Species Helix charybdis Benson, 1856 (unaccepted, original combination)
Species Helix chastellii Deshayes in Férussac, 1832 (unaccepted, original combination)
Species Helix chertieri Deshayes, 1863 † (unaccepted)
Species Helix chevallieri Cossmann, 1886 † (unaccepted, new combination)
Species Helix chinensis Philippi, 1845 (unaccepted, original combination)
Species Helix chlorozona Grateloup, 1840 (unaccepted, original combination)
Species Helix chrysosticta Morelet, 1867 (unaccepted, original combination)
Species Helix chytrophora Mabille, 1887 (unaccepted, original combination)
Species Helix cicatricosa O. F. Müller, 1774 (unaccepted, original combination)
Species Helix cidaris Lamarck, 1822 (unaccepted, original combination)
Species Helix cinctella Draparnaud, 1801 (unaccepted, original combination)
Species Helix cingulata (Studer, 1820) (unaccepted)
Species Helix circumcincta Cox, 1868 (unaccepted, original combination)
Species Helix circumfiliaris Morelet, 1879 (unaccepted, original combination)
Species Helix circumlineata L. Pfeiffer, 1846 (unaccepted, original combination)
Species Helix cirtae Terver, 1839 (unaccepted, junior synonym)
Species Helix citrina Linnaeus, 1758 (unaccepted, original combination)
Species Helix citrinula L. Pfeiffer, 1859 (unaccepted, junior synonym)
Species Helix clarencensis Cox, 1865 (unaccepted, junior synonym)
Species Helix clotho Férussac, 1840 (unaccepted, original combination)
Species Helix coagulum E. von Martens, 1889 (unaccepted, original combination)
Species Helix coarctata Klein, 1853 † (unaccepted, new combination)
Species Helix coarctata L. Pfeiffer, 1850 (unaccepted, invalid: junior homonym of Helix coarctata Montagu, 1803)
Species Helix collaris Pfeiffer, 1867 (unaccepted, original combination)
Species Helix collingii E. A. Smith, 1893 (unaccepted, original combination)
Species Helix colona Martens, 1877 (unaccepted, original combination)
Species Helix comorensis Morelet, 1881 (unaccepted, original combination)
Species Helix complanata Linnaeus, 1758 (unaccepted, original combination)
Species Helix confinis Gassies, 1875 (unaccepted, original combination)
Species Helix conicoides Metcalfe, 1851 (unaccepted, original combination)
Species Helix conoidea Draparnaud, 1801 (unaccepted, original combination)
Species Helix consanguinea Férussac, 1840 (unaccepted, original combination)
Species Helix consimilis Pease, 1868 (unaccepted)
Species Helix conspurcata Draparnaud, 1801 (unaccepted, original combination)
Species Helix constantina E. Forbes, 1838 (unaccepted, original combination)
Species Helix constantinae Bourguignat, 1863 (unaccepted, unjustified emendation)
Species Helix constrictelabiata K. Miller, 1907 † (unaccepted, new combination)
Species Helix contermina L. Pfeiffer, 1847 (unaccepted, original combination)
Species Helix contorta Linnaeus, 1758 (unaccepted, original combination)
Species Helix contorta Quoy & Gaimard, 1824 (unaccepted, invalid: junior homonym of Helix contorta Linnaeus, 1758)
Species Helix contraria O.F. Müller, 1774 (unaccepted, original combination)
Species Helix contrarius O. F. Müller, 1774 (unaccepted, original combination)
Species Helix conula Pease, 1861 (unaccepted, original combination)
Species Helix conus L. Pfeiffer, 1841 (unaccepted, original combination)
Species Helix coquandiana Matheron, 1842 † (unaccepted, junior synonym)
Species Helix corallina Chemnitz, 1795 (unaccepted)
Species Helix corduensis Noulet, 1854 † (unaccepted, new combination)
Species Helix coriacea Pallas, 1788 (unaccepted, original combination)
Species Helix coriaria Pfeiffer, 1847 (unaccepted, junior synonym)
Species Helix cornea Linnaeus, 1758 (unaccepted, new combination)
Species Helix corneovirens Pfeiffer, 1851 (unaccepted, original combination)
Species Helix corniculum Reeve, 1852 (unaccepted)
Species Helix cornuarietis Linnaeus, 1758 (unaccepted, original combination)
Species Helix cornumilitare Linnaeus, 1758 (unaccepted, original combination)
Species Helix corrugata L. Pfeiffer, 1847 (unaccepted, junior synonym)
Species Helix corvus Gmelin, 1791 (unaccepted, original combination)
Species Helix corys Benson, 1859 (unaccepted, original combination)
Species Helix cosmia L. Pfeiffer, 1852 (unaccepted, original combination)
Species Helix costulifera Pfeiffer, 1854 (unaccepted, original combination)
Species Helix cotyledonis Benson, 1850 (unaccepted, original combination)
Species Helix coxeni Cox, 1871 (unaccepted, original combination)
Species Helix coxi Crosse, 1866 (unaccepted, original combination)
Species Helix crassa L. Pfeiffer, 1850 (unaccepted, invalid: junior homonym of Helix crassa da Costa, 1778; Codringtonia neocrassa is a replacement name)
Species Helix crassilabris L. Pfeiffer, 1847 (unaccepted, junior synonym)
Species Helix crebriflammis L. Pfeiffer, 1876 (unaccepted, junior synonym)
Species Helix creedi Cox, 1868 (unaccepted, original combination)
Species Helix crenata Gmelin, 1791 (unaccepted, original combination)
Species Helix cretacea Tausch, 1886 † (unaccepted, new combination)
Species Helix crispolanata Wollaston, 1878 (unaccepted, original combination)
Species Helix crispulata Mousson, 1861 (unaccepted, original combination)
Species Helix croftoni Cox, 1872 (unaccepted, junior synonym)
Species Helix crustulum Cox, 1873 (unaccepted, original combination)
Species Helix crypta L. Pfeiffer, 1868 (unaccepted, junior synonym)
Species Helix cunninghami Gray in Griffith & Pidgeon, 1834 (unaccepted, objective synonym)
Species Helix cupreus Cox, 1868 (unaccepted, original combination)
Species Helix cuyana L. Pfeiffer, 1867 (unaccepted, original combination)
Species Helix cyanostoma Mabille, 1884 (unaccepted, junior synonym)
Species Helix cyclostomoides Pfeiffer, 1840 (unaccepted, original combination)
Species Helix cyparissias L. Pfeiffer, 1847 (unaccepted, junior synonym)
Species Helix cypria L. Pfeiffer, 1847 (unaccepted, original combination)
Species Helix daedalea Gould, 1846 (unaccepted)
Species Helix daghestana Kobelt, 1877 (unaccepted, original combination)
Species Helix damnata Brongniart, 1810 † (unaccepted, new combination)
Species Helix dandenongensis Petterd, 1879 (unaccepted, original combination)
Species Helix dasilepida Mabille, 1884 (unaccepted, original combination)
Species Helix decreta Gassies, 1871 (unaccepted, original combination)
Species Helix decussata Montagu, 1803 (unaccepted, original combination)
Species Helix decussatula Pease, 1866 (unaccepted, original combination)
Species Helix deidamia Angas, 1869 (unaccepted, junior synonym)
Species Helix denatale L. Pfeiffer, 1856 (unaccepted, original combination)
Species Helix denotata Férussac, 1823 (unaccepted, original combination)
Species Helix dentata W. Wood, 1828 (unaccepted, original combination)
Species Helix denudata Reuss in Reuss & Meyer, 1849 † (unaccepted, new combination)
Species Helix deplanchesi Gassies, 1870 (unaccepted)
Species Helix depressa Montagu, 1803 (unaccepted, synonym)
Species Helix derbesianus Crosse, 1875 (unaccepted, original combination)
Species Helix destituta L. Pfeiffer, 1853 (unaccepted, junior synonym)
Species Helix dictyodes L. Pfeiffer, 1847 (unaccepted, original combination)
Species Helix dictyonina Euthyme, 1885 (unaccepted)
Species Helix diemenensis Cox, 1868 (unaccepted, original combination)
Species Helix dimorpha Pfeiffer, 1852 (unaccepted)
Species Helix diodontina Heude, 1885 (unaccepted, original combination)
Species Helix dioscoricola C. B. Adams, 1845 (unaccepted, original combination)
Species Helix discerpta Deshayes, 1863 † (unaccepted, new combination)
Species Helix discus Thomä, 1845 † (unaccepted, new combination)
Species Helix dispersa Gassies, 1863 (unaccepted, original combination)
Species Helix dissimilis d'Orbigny, 1835 (unaccepted)
Species Helix distans Pease, 1866 (unaccepted, original combination)
Species Helix distincta L. Pfeiffer, 1850 (unaccepted, original combination)
Species Helix doliolum L. Pfeiffer, 1846 (unaccepted, original combination)
Species Helix drepanensis L. Pfeiffer, 1857 (unaccepted, original combination)
Species Helix dringi Pfeiffer, 1846 (unaccepted, original combination)
Species Helix drouetii De Boissy, 1840 † (unaccepted, new combination)
Species Helix dumasi De Boissy, 1848 † (unaccepted, new combination)
Species Helix dumeticola Benson, 1851 (unaccepted, original combination)
Species Helix dunniae Gray, 1840 (unaccepted)
Species Helix duplocincta Martens, 1879 (unaccepted, original combination)
Species Helix duporti Bavay & Dautzenberg, 1909 (unaccepted, original combination)
Species Helix duralensis Cox, 1868 (unaccepted, original combination)
Species Helix durbani F.E. Edwards, 1852 † (unaccepted, new combination)
Species Helix durieui L. Pfeiffer, 1848 (unaccepted, original combination)
Species Helix durvillii Hombron & Jacquinot, 1841 (unaccepted, original combination)
Species Helix duvalii Petit de la Saussaye, 1844 (unaccepted, original combination)
Species Helix dyeri Petterd, 1879 (unaccepted)
Species Helix eburnea Megerle von Mühlfeld, 1824 (unaccepted)
Species Helix echinophora Férussac, 1839 (unaccepted, original combination)
Species Helix eddystonensis Reeve, 1854 (unaccepted, original combination)
Species Helix edentula Draparnaud, 1805 (unaccepted, original combination)
Species Helix edwardsi Cox, 1868 (unaccepted, invalid: junior homonym of Helix edwardsi Bland, 1858; H. meadei is a replacement name)
Species Helix edwardsi Deshayes, 1863 † (unaccepted, new combination; junior homonym of Helix edwardsi Bland, 1858)
Species Helix egesta Gray, 1850 (unaccepted)
Species Helix ehingensis Klein, 1846 † (unaccepted, new combination)
Species Helix ekongensis Angas, 1877 (unaccepted, original combination)
Species Helix elachystoma Martens, 1878 (unaccepted, original combination)
Species Helix elderi Bednall, 1892 (unaccepted, original combination)
Species Helix elegans Gmelin, 1791 (unaccepted, original combination)
Species Helix elegantissima L. Pfeiffer, 1849 (unaccepted, original combination)
Species Helix endoptycha Martens, 1864 (unaccepted, original combination)
Species Helix erdelii Roth, 1839 (unaccepted, junior synonym)
Species Helix erinaceus Pfeiffer, 1861 (unaccepted, junior synonym)
Species Helix erubescens R. T. Lowe, 1831 (unaccepted, preoccupied, non Helix erubescens Solander, 1786)
Species Helix estella d'Orbigny, 1835 (unaccepted, original combination)
Species Helix eucharis Deshayes in Férussac, 1840 (unaccepted, original combination)
Species Helix eugenia L. Pfeiffer, 1853 (unaccepted, original combination)
Species Helix euglypha Reuss in Reuss & Meyer, 1849 † (unaccepted, new combination)
Species Helix eustoma L. Pfeiffer, 1857 (unaccepted, original combination)
Species Helix eutropis L. Pfeiffer, 1861 (unaccepted, original combination)
Species Helix eva Reeve, 1853 (unaccepted, original combination)
Species Helix evanstonensis White, 1878 † (unaccepted, new combination)
Species Helix eversa Deshayes in Férussac & Deshayes, 1851 † (unaccepted, junior synonym)
Species Helix excoriata E. von Martens, 1883 (unaccepted, junior synonym)
Species Helix exocarpi Cox, 1868 (unaccepted, original combination)
Species Helix expansilabris F. Sandberger, 1858 † (unaccepted, new combination)
Species Helix faba Gmelin, 1791 (unaccepted, original combination)
Species Helix fabrefacta Pease, 1865 (unaccepted, original combination)
Species Helix farquhari Melvill & Ponsonby, 1892 (unaccepted, original combination)
Species Helix fasciata J. Adams, 1800 (unaccepted, synonym)
Species Helix fasciolata Spix in Wagner, 1827 (unaccepted)
Species Helix fatigata Cox, 1873 (unaccepted, original combination)
Species Helix fatua sensu Hutton, 1882 not Pfeiffer, 1857 (unaccepted)
Species Helix fausta R. T. Lowe, 1831 (unaccepted, original combination)
Species Helix feneriffensis H. Adams & Angas, 1876 (unaccepted, original combination)
Species Helix ficta Pease, 1865 (unaccepted, original combination)
Species Helix fidelis J.E. Gray, 1834 (unaccepted, new combination)
Species Helix filholi Bourguignat, 1874 † (unaccepted, new combination)
Species Helix filia Mousson, 1861 (unaccepted, original combination)
Species Helix filicina L. Pfeiffer, 1841 (unaccepted, original combination)
Species Helix fimbriata Bourguignat, 1852 (unaccepted, original combination)
Species Helix flavida Rossmässler, 1839 (unaccepted, junior synonym)
Species Helix flavocincta Megerle von Mühlfeld, 1829 (unaccepted)
Species Helix fleurati Bourguignat, 1868 (unaccepted, junior synonym)
Species Helix folliculum Schröter, 1784 (unaccepted, original combination)
Species Helix forbesii Cox, 1864 (unaccepted, invalid: junior homonym of Helix forbesii Pfeiffer, 1845)
Species Helix forensis Wollaston, 1878 (unaccepted, original combination)
Species Helix formosensis L. Pfeiffer, 1866 (unaccepted, original combination)
Species Helix forsteriana Reeve, 1852 (unaccepted, original combination)
Species Helix fortis C. B. Adams, 1850 (unaccepted)
Species Helix fossaria Montagu, 1803 (unaccepted)
Species Helix fragilis Linnaeus, 1758 (unaccepted, original combination)
Species Helix frappieri Deshayes, 1863 (unaccepted, junior synonym)
Species Helix fraseri Gray in Griffith & Pidgeon, 1833 (unaccepted, original combination)
Species Helix fratercula Pease, 1867 (unaccepted, original combination)
Species Helix fricki L. Pfeiffer, 1858 (unaccepted, original combination)
Species Helix fringilla Pfeiffer, 1855 (unaccepted, original combination)
Species Helix fruticum O.F. Müller, 1774 (unaccepted, original combination)
Species Helix fulgidus J. Adams, 1797 (unaccepted)
Species Helix fulgurata G. B. Sowerby I, 1839 (unaccepted, original combination)
Species Helix fulica Férussac, 1821 (unaccepted, original combination)
Species Helix funebris Morelet, 1877 (unaccepted, original combination)
Species Helix fuscolutea Grateloup, 1840 (unaccepted, original combination)
Species Helix fuscozonata Beddome, 1889 (unaccepted, original combination)
Species Helix gadensis Petterd, 1879 (unaccepted, original combination)
Species Helix galactostoma L. Pfeiffer, 1849 (unaccepted, original combination)
Species Helix galactostomella Mabille, 1886 (unaccepted, junior synonym)
Species Helix gargantua A. Férussac, 1821 (unaccepted, original combination)
Species Helix gaspardiana Paladilhe, 1873 † (unaccepted, new combination)
Species Helix gassiesi L. Pfeiffer, 1861 (unaccepted, original combination)
Species Helix gaudens Mabille, 1884 (unaccepted, original combination)
Species Helix gawleri Brazier, 1872 (unaccepted, original combination)
Species Helix gelata Cox, 1873 (unaccepted)
Species Helix giengensis Klein, 1846 † (unaccepted, new combination)
Species Helix gigantea Scopoli, 1786 (unaccepted, original combination)
Species Helix gilberti Pfeiffer, 1846 (unaccepted, original combination)
Species Helix glabella Draparnaud, 1801 (unaccepted, original combination)
Species Helix glabrata Megerle von Mühlfeld, 1824 (unaccepted)
Species Helix glanvilliana Ancey, 1890 (unaccepted, original combination)
Species Helix glauca Linnaeus, 1758 (unaccepted, original combination)
Species Helix globulus O. F. Müller, 1774 (unaccepted, original combination)
Species Helix glockeri Quenstedt, 1884 † (unaccepted, new combination)
Species Helix gloriosa L. Pfeiffer, 1856 (unaccepted, original combination)
Species Helix godarti Michaud, 1855 † (unaccepted, new combination)
Species Helix goldfussii Thomä, 1845 † (unaccepted, new combination)
Species Helix gomerae Wollaston, 1878 (unaccepted, original combination)
Species Helix goodallii J. S. Miller, 1822 (unaccepted, invalid: junior homonym of Helix goodallii Ferussac, 1821)
Species Helix grabhami Wollaston, 1878 (unaccepted, original combination)
Species Helix gradata Gould, 1846 (unaccepted, original combination)
Species Helix graellsiana L. Pfeiffer, 1848 (unaccepted, original combination)
Species Helix graftonensis Cox, 1864 (unaccepted, junior synonym)
Species Helix grandidieri Crosse & Fischer, 1875 (unaccepted, junior synonym)
Species Helix granomalleata Wollaston, 1878 (unaccepted, original combination)
Species Helix granti L. Pfeiffer, 1866 (unaccepted, original combination)
Species Helix granulosa Férussac, 1840 (unaccepted, original combination)
Species Helix gratiosa Cox, 1871 (unaccepted, invalid: junior homonym of Helix gratiosa Studer, 1820)
Species Helix grayi Pfeiffer, 1847 (unaccepted, original combination)
Species Helix greenhilli Cox, 1866 (unaccepted, original combination)
Species Helix greenwoodi Gray, 1850 (unaccepted)
Species Helix grenvillei Brazier, 1876 (unaccepted, original combination)
Species Helix guarani d'Orbigny, 1835 (unaccepted)
Species Helix guestieriana Crosse, 1868 (unaccepted, original combination)
Species Helix guillaini Petit de la Saussaye, 1850 (unaccepted, junior synonym)
Species Helix guiraoana L. Pfeiffer, 1853 (unaccepted, original combination)
Species Helix gulosa Gould, 1846 (unaccepted, original combination)
Species Helix guttula Pfeiffer, 1853 (unaccepted, original combination)
Species Helix gyrina Gassies, 1859 (unaccepted, invalid: junior homonym of Helix gyrina Deshayes, 1850)
Species Helix gyroides L. Pfeiffer, 1871 (unaccepted, junior synonym)
Species Helix halata Mousson, 1849 (unaccepted, original combination)
Species Helix haliotoidea Linnaeus, 1758 (unaccepted, original combination)
Species Helix hannensis Rang, 1831 (unaccepted)
Species Helix hartvigiana L. Pfeiffer, 1861 (unaccepted, original combination)
Species Helix haruspica Dall, 1890 † (unaccepted, new combination)
Species Helix hayii Gray in Griffith & Pidgeon, 1833 (unaccepted, original combination)
Species Helix heberti Deshayes, 1863 † (unaccepted, new combination)
Species Helix hectori Suter, 1890 (unaccepted, original combination)
Species Helix heldreichi L. Pfeiffer, 1846 (unaccepted, original combination)
Species Helix helva Cox, 1870 (unaccepted, original combination)
Species Helix hemisphaerica Michaud, 1837 † (unaccepted, new combination)
Species Helix henschei L. Pfeiffer, 1867 (unaccepted, original combination)
Species Helix hepatizon Gould, 1845 (unaccepted, original combination)
Species Helix hermanni L. Pfeiffer, 1866 (unaccepted)
Species Helix hermione Angas, 1870 (unaccepted, original combination)
Species Helix hesperarche Cockerell, 1914 † (unaccepted, new combination)
Species Helix hetaera Pfeiffer, 1860 (unaccepted, junior synonym)
Species Helix heynemanni L. Pfeiffer, 1862 (unaccepted, original combination)
Species Helix hierosolyma Mousson, 1854 (unaccepted, junior synonym)
Species Helix hierosolymitana Bourguignat, 1852 (unaccepted, junior synonym)
Species Helix hildagoiana Crosse, 1864 (unaccepted, junior synonym)
Species Helix hispida Linnaeus, 1758 (unaccepted, original combination)
Species Helix hispidula Lamarck, 1822 (unaccepted, new combination)
Species Helix hochstetteri L. Pfeiffer, 1862 (unaccepted)
Species Helix homalospira Morelet, 1883 (unaccepted, original combination)
Species Helix hombroni Pfeiffer, 1857 (unaccepted, basionym)
Species Helix hookeri Reeve, 1854 (unaccepted, original combination)
Species Helix hookeriana Petterd, 1879 (unaccepted, original combination)
Species Helix hortulana Thomä, 1845 † (unaccepted, new combination)
Species Helix hottentota Melvill & Ponsonby, 1891 (unaccepted, original combination)
Species Helix hova Angas, 1877 (unaccepted, original combination)
Species Helix howeinsulae Cox, 1873 (unaccepted, original combination)
Species Helix huaheinensis L. Pfeiffer, 1853 (unaccepted, original combination)
Species Helix hubbardi A.D. Brown, 1861 (unaccepted, new combination)
Species Helix hubbardi A. D. Brown, 1861 (unaccepted, original combination)
Species Helix hudsoniae Benson, 1864 (unaccepted, original combination)
Species Helix hueensis Wattebled, 1886 (unaccepted, original combination)
Species Helix hugonis Pfeiffer, 1863 (unaccepted, original combination)
Species Helix humphreysiana I. Lea, 1841 (unaccepted, original combination)
Species Helix hungerfordiana Möllendorff, 1884 (unaccepted, original combination)
Species Helix hunteri Cox, 1872 (unaccepted, original combination)
Species Helix huttoni L. Pfeiffer, 1842 (unaccepted, original combination)
Species Helix hygrohylaea d'Orbigny, 1835 (unaccepted, original combination)
Species Helix hystricella L. Pfeiffer, 1859 (unaccepted, original combination)
Species Helix hystrix L. Pfeiffer, 1846 (unaccepted, original combination)
Species Helix ide Gray, 1850 (unaccepted)
Species Helix illyrica Stabile, 1864 (unaccepted, original combination)
Species Helix immaculata Adams & Reeve, 1850 (unaccepted, junior synonym)
Species Helix imperfecta Deshayes, 1863 (unaccepted, original combination)
Species Helix improbata Mousson, 1861 (unaccepted, junior synonym)
Species Helix inca d’Orbigny, 1835 (unaccepted, original combination)
Species Helix incerta Draparnaud, 1805 (unaccepted, original combination)
Species Helix inclara Morelet, 1889 (unaccepted, original combination)
Species Helix incrassata Klein, 1853 † (unaccepted, new combination)
Species Helix indica L. Pfeiffer, 1846 (unaccepted, original combination)
Species Helix induta Tate, 1878 (unaccepted, Invalid: junior homonym of Helix induya Pfeiffer, 1846)
Species Helix inequalis L. Pfeiffer, 1854 (unaccepted, original combination)
Species Helix infecta Reeve, 1852 (unaccepted)
Species Helix inflata Kobelt, 1876 (unaccepted, original combination)
Species Helix inflexa Zieten, 1832 † (unaccepted, new combination)
Species Helix infrendens Gould, 1843 (unaccepted, original combination)
Species Helix infudibulus Hombron & Jacquinot, 1841 (unaccepted, original combination)
Species Helix infundibulum Valenciennes, 1846 (unaccepted, junior synonym)
Species Helix ingens C. B. Adams, 1850 (unaccepted)
Species Helix ingersollii Bland, 1875 (unaccepted, new combination)
Species Helix inops Morelet, 1889 (unaccepted, invalid; junior homonym of Helix inops Mousson, 1872)
Species Helix insignis Zieten, 1832 † (unaccepted, new combination)
Species Helix intercarinata Mighels, 1854 (unaccepted, junior synonym)
Species Helix intusplicata L. Pfeiffer, 1851 (unaccepted, original combination)
Species Helix invalida C. B. Adams, 1850 (unaccepted)
Species Helix inversus Müller, 1774 (unaccepted, original combination)
Species Helix involuta Thomä, 1845 † (unaccepted, new combination)
Species Helix involvulus O.F. Müller, 1774 (unaccepted, original combination)
Species Helix isabellensis Souverbie, 1863 (unaccepted, junior synonym)
Species Helix isilensis L. Pfeiffer, 1853 (unaccepted, original combination)
Species Helix iuloidea Forbes, 1852 (unaccepted, original combination)
Species Helix jacksoniensis Gray, 1834 (unaccepted, original combination)
Species Helix jacquinoti L. Pfeiffer, 1849 (unaccepted, original combination)
Species Helix jamaicensis Gmelin, 1791 (unaccepted)
Species Helix jannellei Le Guillou, 1842 (unaccepted, original combination)
Species Helix janthina Forsskål, 1775 (unaccepted, junior synonym and homonym)
Species Helix janthina Linnaeus, 1758 (unaccepted, original combination)
Species Helix japonica L. Pfeiffer, 1847 (unaccepted, original combination)
Species Helix jebusitica Roth, 1855 (unaccepted, original combination)
Species Helix jenynsi L. Pfeiffer, 1846 (unaccepted, original combination)
Species Helix jervisensis Quoy & Gaimard, 1832 (unaccepted, original combination)
Species Helix johnii Holten, 1802 (unaccepted, original combination)
Species Helix joossii K. Miller, 1907 † (unaccepted, new combination)
Species Helix joppensis Schmidt, 1855 (unaccepted, junior synonym)
Species Helix jourdani Michaud, 1862 † (unaccepted, new combination)
Species Helix jucunda L. Pfeiffer, 1863 (unaccepted, original combination)
Species Helix jugosa Mighels, 1845 (unaccepted, original combination)
Species Helix jungermanniae Petterd, 1879 (unaccepted)
Species Helix kanabensis White, 1876 † (unaccepted, new combination)
Species Helix katauensis Tapparone-Canefri, 1883 (unaccepted, junior synonym)
Species Helix kermadecensis E. A. Smith, 1873 (unaccepted)
Species Helix kermadeci L. Pfeiffer, 1856 (unaccepted)
Species Helix kershawi Petterd, 1879 (unaccepted, original combination)
Species Helix kleciachi L. Pfeiffer, 1871 (unaccepted, original combination)
Species Helix kleinii Klein, 1846 † (unaccepted, new combination)
Species Helix knysnaensis L. Pfeiffer, 1846 (unaccepted, original combination)
Species Helix kochi L. Pfeiffer, 1846 (unaccepted, original combination)
Species Helix kollari L. Pfeiffer, 1856 (unaccepted, original combination)
Species Helix kraussi L. Pfeiffer, 1846 (unaccepted)
Species Helix krynickii Andrzejowski in Krynicki, 1833 (unaccepted, original combination)
Species Helix labiosa Montagu, 1803 (unaccepted, synonym)
Species Helix labrella Lamarck, 1822 (unaccepted, junior synonym)
Species Helix labuanensis L. Pfeiffer, 1863 (unaccepted, original combination)
Species Helix labyrinthica Say, 1817 (unaccepted, original combination)
Species Helix lacertarum Bourguignat, 1863 (unaccepted, original combination)
Species Helix lachesis Férussac, 1840 (unaccepted, original combination)
Species Helix lactiflua Pfeiffer, 1861 (unaccepted, original combination)
Species Helix lacuna Montagu, 1803 (unaccepted, synonym)
Species Helix lacunosus d'Orbigny, 1835 (unaccepted, original combination)
Species Helix laeva O. F. Müller, 1774 (unaccepted, original combination)
Species Helix lamarckii Férussac, 1821 (unaccepted, superseded original combination)
Species Helix lamarei L. Pfeiffer, 1853 (unaccepted, original combination)
Species Helix lambei Pfeiffer, 1856 (unaccepted, original combination)
Species Helix lamellosa Férussac, 1824 (unaccepted, original combination)
Species Helix laminata Pease, 1866 (unaccepted, original combination)
Species Helix lampas O. F. Müller, 1774 (unaccepted, original combination)
Species Helix lamproides Cox, 1868 (unaccepted, original combination)
Species Helix lancula Férussac, 1821 (unaccepted, original combination)
Species Helix langloisiana Bourguignat, 1853 (unaccepted, original combination)
Species Helix lanx Férussac, 1821 (unaccepted, junior synonym)
Species Helix laomontana L. Pfeiffer, 1852 (unaccepted, original combination)
Species Helix lapicidella Thomä, 1845 † (unaccepted, junior synonym)
Species Helix lapicidites Boubée, 1831 † (unaccepted, new combination)
Species Helix lapidaria Thomä, 1845 † (unaccepted, new combination)
Species Helix laqueata Baird, 1873 (unaccepted, junior synonym)
Species Helix largillierti Pfeiffer, 1849 (unaccepted, original combination)
Species Helix latastei Letourneux in Letourneux & Bourguignat, 1887 (unaccepted, original combination)
Species Helix latasteopsis Letourneux & Bourguignat, 1887 (unaccepted, original combination)
Species Helix launcestonensis Reeve, 1853 (unaccepted, original combination)
Species Helix leacockiana Wollaston, 1878 (unaccepted, original combination)
Species Helix ledereri L. Pfeiffer, 1856 (unaccepted, original combination)
Species Helix legrandi Cox, 1868 (unaccepted, original combination)
Species Helix leiophis Benson, 1860 (unaccepted, original combination)
Species Helix lenta Solander in Brander, 1766 † (unaccepted, new combination)
Species Helix lenticula Michaud, 1831 (unaccepted, new combination)
Species Helix leoberdorfensis Troll, 1907 † (unaccepted, original combination)
Species Helix lepida Reuss in Reuss & Meyer, 1849 † (unaccepted, new combination)
Species Helix lepidotricha A. Braun in Walchner, 1851 † (unaccepted, junior objective synonym; new combination)
Species Helix leptogramma Pfeiffer, 1846 (unaccepted, original combination)
Species Helix leptoloma A. Braun in Walchner, 1851 † (unaccepted, new combination)
Species Helix leucothoe Pfeiffer, 1861 (unaccepted, original combination)
Species Helix levicula Benson, 1859 (unaccepted, original combination)
Species Helix leymerieana Noulet, 1854 † (unaccepted, new combination)
Species Helix lienardiana Crosse, 1864 (unaccepted, original combination)
Species Helix limbata Draparnaud, 1805 (unaccepted, original combination)
Species Helix lindstedti Pfeiffer, 1856 (unaccepted, original combination)
Species Helix lirata Cox, 1868 (unaccepted, original combination)
Species Helix lisbonensis L. Pfeiffer, 1846 (unaccepted, junior synonym)
Species Helix lithophaga Conrad, 1852 (unaccepted, original combination)
Species Helix littorina Delle Chiaje, 1828 (unaccepted, original combination)
Species Helix liturata L. Pfeiffer, 1853 (unaccepted, original combination)
Species Helix lituus Lesson, 1831 (unaccepted, original combination)
Species Helix lorioliana Crosse, 1863 (unaccepted, original combination)
Species Helix lottah Petterd, 1879 (unaccepted, original combination)
Species Helix louisiadensis Forbes, 1852 (unaccepted, original combination)
Species Helix loveni F. Krauss, 1848 (unaccepted, original combination)
Species Helix loweana Wollaston, 1878 (unaccepted, original combination)
Species Helix lubrica O. F. Müller, 1774 (unaccepted)
Species Helix lucana O. F. Müller, 1774 (unaccepted, original combination)
Species Helix lucani Tournouër, 1866 † (unaccepted, new combination)
Species Helix ludovici Noulet, 1854 † (unaccepted, new combination)
Species Helix luedersi L. Pfeiffer, 1855 (unaccepted, original combination)
Species Helix luna Michaud, 1837 † (unaccepted, new combination)
Species Helix lusitanica L. Pfeiffer, 1841 (unaccepted, original combination)
Species Helix luteocornea Reeve, 1854 (unaccepted, original combination)
Species Helix luteocornea Pfeiffer, 1855 (unaccepted, invalid: junior homonym of Helix luteocornea Reeve, 1854)
Species Helix luteofusca Cox, 1868 (unaccepted, original combination)
Species Helix lychna Mabille, 1884 (unaccepted, junior synonym)
Species Helix lyndhurstensis Cox, 1868 (unaccepted, junior synonym)
Species Helix lyndi Angas, 1872 (unaccepted)
Species Helix mabillei Crosse, 1864 (unaccepted, junior synonym)
Species Helix Mac andrewiana L. Pfeiffer, 1853 (unaccepted, original combination)
Species Helix macgillivrayi Forbes, 1852 (unaccepted, original combination)
Species Helix macleayi Cox, 1865 (unaccepted, original combination)
Species Helix macrocheila Reuss in Reuss & Meyer, 1849 † (unaccepted, new combination)
Species Helix macropleuris Benson, 1859 (unaccepted, original combination)
Species Helix madecassina Férussac, 1821 (unaccepted, original combination)
Species Helix magnilabiata Sacco, 1884 † (unaccepted, new combination)
Species Helix maguntina Deshayes, 1832 † (unaccepted, new combination)
Species Helix malantensis Angas, 1876 (unaccepted, original combination)
Species Helix malziana L. Pfeiffer, 1861 (unaccepted, original combination)
Species Helix mandarina Gray, 1839 (unaccepted)
Species Helix margarita Montagu, 1808 (unaccepted, synonym)
Species Helix mariei Crosse, 1867 (unaccepted, original combination)
Species Helix marmorata Cox, 1864 (unaccepted, invalid: junior homonym of Helix marmorata Férussac, 1821; H. circumcincta is a replacement name)
Species Helix marmorella L. Pfeiffer, 1846 (unaccepted, original combination)
Species Helix masadae Tristram, 1865 (unaccepted, junior synonym)
Species Helix massylaea Morelet, 1851 (unaccepted, original combination)
Species Helix mastersi Cox, 1864 (unaccepted, original combination)
Species Helix mathinnae Petterd, 1879 (unaccepted, original combination)
Species Helix mathiusii d'Orbigny, 1835 (unaccepted)
Species Helix mattiaca Steininger, 1835 † (unaccepted, new combination)
Species Helix matura L. Pfeiffer, 1855 (unaccepted, original combination)
Species Helix megei Lambert, 1873 (unaccepted, original combination)
Species Helix melaleucarum Gassies, 1872 (unaccepted, original combination)
Species Helix melbournensis Cox, 1868 (unaccepted, original combination)
Species Helix meleagris L. Pfeiffer, 1855 (unaccepted, original combination)
Species Helix melitae Gassies, 1870 (unaccepted)
Species Helix mellea L. Pfeiffer, 1866 (unaccepted, original combination)
Species Helix membranicosta L. Pfeiffer, 1854 (unaccepted, original combination)
Species Helix menardi Brongniart, 1810 † (unaccepted, new combination)
Species Helix mendana Angas, 1867 (unaccepted, junior synonym)
Species Helix mendax Martens, 1864 (unaccepted, original combination)
Species Helix menkeana L. Pfeiffer, 1842 (unaccepted, original combination)
Species Helix merarcha Mabille, 1888 (unaccepted, original combination)
Species Helix mercatorina Mabille, 1887 (unaccepted, junior synonym)
Species Helix merziana L. Pfeiffer, 1852 (unaccepted, original combination)
Species Helix mespillum Megerle von Mühlfeld, 1824 (unaccepted, basionym)
Species Helix meta L. Pfeiffer, 1856 (unaccepted, original combination)
Species Helix metula Crosse, 1870 (unaccepted, junior synonym)
Species Helix mica Morelet, 1879 (unaccepted, original combination)
Species Helix micra Orbigny, 1835 (unaccepted, original combination)
Species Helix micra Morelet, 1882 (unaccepted, junior primary homonym of Helix micra Orbigny, 1835)
Species Helix microdonta Deshayes, 1832 (unaccepted, junior synonym)
Species Helix microscopica F. Krauss, 1848 (unaccepted, original combination)
Species Helix microundulata Suter, 1890 (unaccepted, original combination)
Species Helix migratoria Pfeiffer, 1855 (unaccepted, original combination)
Species Helix miguelinus L. Pfeiffer, 1856 (unaccepted, original combination)
Species Helix miliaris Morelet, 1888 (unaccepted)
Species Helix militaris L. Pfeiffer, 1855 (unaccepted, junior synonym)
Species Helix millestriata E. A. Smith, 1874 (unaccepted, original combination)
Species Helix millicentae Cox, 1871 (unaccepted, junior synonym)
Species Helix mimosa Petterd, 1879 (unaccepted, original combination)
Species Helix minutissima I. Lea, 1841 (unaccepted, original combination)
Species Helix miser Cox, 1873 (unaccepted, junior synonym)
Species Helix mitchellae Cox, 1864 (unaccepted, original combination)
Species Helix modesta L. Pfeiffer, 1848 (unaccepted, junior synonym)
Species Helix modicella Deshayes, 1840 (unaccepted, original combination)
Species Helix monacha Pfeiffer, 1859 (unaccepted, original combination)
Species Helix monacha Mabille, 1884 (unaccepted, original combination)
Species Helix monilia Deshayes, 1863 † (unaccepted, new combination)
Species Helix monodon A. Férussac, 1807 (unaccepted, original combination)
Species Helix montrouzieri Souverbie, 1858 (unaccepted, original combination)
Species Helix montserratensis Hidalgo, 1870 (unaccepted, original combination)
Species Helix mora Gray in Griffith & Pidgeon, 1833 (unaccepted, original combination)
Species Helix morleti Dautzenberg & d’Hamonville, 1887 (unaccepted, original combination)
Species Helix moroguesi Brongniart, 1810 † (unaccepted, new combination)
Species Helix morosa Morelet, 1853 (unaccepted, original combination)
Species Helix mortilleti L. Pfeiffer, 1859 (unaccepted, original combination)
Species Helix motacilla L. Pfeiffer, 1855 (unaccepted, original combination)
Species Helix motacilla Pfeiffer, 1855 (unaccepted, original combination)
Species Helix mouensis Crosse, 1868 (unaccepted, original combination)
Species Helix mouhoti Reeve, 1860 (unaccepted, invalid: junior homonym of Helix mouhoti L. Pfeiffer, 1860; Helix cambojiensis is a replacement name)
Species Helix mozambicensis L. Pfeiffer, 1855 (unaccepted, original combination)
Species Helix mucronata Klein, 1846 † (unaccepted, junior synonym)
Species Helix mulgoae Cox, 1868 (unaccepted, junior synonym)
Species Helix multisulcata Gassies, 1857 (unaccepted, junior synonym)
Species Helix munda Benson, 1850 (unaccepted, invalid; junior homonym of Helix munda Adams, 1849)
Species Helix murrayana L. Pfeiffer, 1864 (unaccepted, original combination)
Species Helix mutica Morelet, 1882 (unaccepted, original combination)
Species Helix myomphala Martens, 1865 (unaccepted, original combination)
Species Helix nana A. Braun in Walchner, 1851 † (unaccepted, new combination)
Species Helix narzanensis Krynicki, 1836 (unaccepted, original combination)
Species Helix naso Martens, 1883 (unaccepted, original combination)
Species Helix nasuta Metcalfe, 1852 (unaccepted, original combination)
Species Helix natalensis L. Pfeiffer, 1846 (unaccepted, original combination)
Species Helix navariensis L. Pfeiffer, 1848 (unaccepted, junior synonym)
Species Helix navigatorum Reeve, 1854 (unaccepted, junior synonym)
Species Helix navigatorum Pfeiffer, 1855 (unaccepted, invalid: junior homonym of Helix navigatorum Reeve, 1854)
Species Helix nayliesi Michaud, 1855 † (unaccepted, new combination)
Species Helix neglecta Draparnaud, 1805 (unaccepted, original combination)
Species Helix nemoralis Linnaeus, 1758 (unaccepted, new combination)
Species Helix nemoralites Boubée, 1831 † (unaccepted, original combination)
Species Helix nemorensis O. F. Müller, 1774 (unaccepted)
Species Helix neritina Gmelin, 1791 (unaccepted)
Species Helix neritoidea Linnaeus, 1758 (unaccepted, original combination)
Species Helix neritoidea Gmelin, 1791 (unaccepted, dubious synonym)
Species Helix neumayri Brusina, 1878 † (unaccepted, new combination)
Species Helix nigrilabris Martens, 1869 (unaccepted)
Species Helix nigrofasciata Pfeiffer, 1864 (unaccepted, original combination)
Species Helix nitefacta Bourguignat in Péchaud, 1883 (unaccepted, junior synonym)
Species Helix nitida O. F. Müller, 1774 (unaccepted)
Species Helix nitidula Draparnaud, 1805 (unaccepted, original combination)
Species Helix nivariae Wollaston, 1878 (unaccepted, original combination)
Species Helix noumeensis Crosse, 1870 (unaccepted, original combination)
Species Helix novacula E. von Martens, 1879 (unaccepted, junior synonym)
Species Helix novaegeorgiensis Cox, 1870 (unaccepted, original combination)
Species Helix noverca L. Pfeiffer, 1853 (unaccepted, original combination)
Species Helix nucleus Gmelin, 1791 (unaccepted, original combination)
Species Helix nullarborica Tate, 1880 (unaccepted, original combination)
Species Helix nupera Brazier, 1875 (unaccepted, junior synonym)
Species Helix nutans Megerle von Mühlfeld, 1824 (unaccepted)
Species Helix obeliscus Moricand, 1834 (unaccepted, original combination)
Species Helix obliquirugosa E.A. Smith, 1894 (unaccepted, original combination)
Species Helix obolus Gould, 1846 (unaccepted, original combination)
Species Helix obstructa L. Pfeiffer, 1842 (unaccepted, original combination)
Species Helix obtusata Gmelin, 1791 (unaccepted, original combination)
Species Helix obvoluta O. F. Müller, 1774 (unaccepted, original combination)
Species Helix occlusa F.E. Edwards, 1852 † (unaccepted, new combination)
Species Helix oculuscommunis Gmelin, 1791 (unaccepted)
Species Helix oglei Godwin-Austen, 1879 (unaccepted, original combination)
Species Helix olympica Roth, 1855 (unaccepted, original combination)
Species Helix omphalion Benson, 1864 (unaccepted, synonym)
Species Helix omphalolodes L. Pfeiffer, 1845 (unaccepted, original combination)
Species Helix oomorpha Mabille, 1884 (unaccepted, junior synonym)
Species Helix oparica Anton, 1839 (unaccepted, original combination)
Species Helix orbicularis Klein, 1846 † (unaccepted, new combination)
Species Helix orbiculata Hutton, 1838 (unaccepted, invalid: junior homonym of Helix orbiculata Férussac, 1822)
Species Helix orcula Benson, 1850 (unaccepted, original combination)
Species Helix oreades d'Orbigny, 1835 (unaccepted, original combination)
Species Helix oresigena d'Orbigny, 1835 (unaccepted, original combination)
Species Helix osculum Thomä, 1845 † (unaccepted, new combination)
Species Helix ostiolum Crosse, 1870 (unaccepted, original combination)
Species Helix otis W. Turton, 1819 (unaccepted, non Lightfoot, 1786)
Species Helix oviformis Grateloup, 1839 (unaccepted, junior synonym)
Species Helix oxystoma Thomä, 1845 † (unaccepted, new combination)
Species Helix pachystoma Klein, 1853 † (unaccepted, junior homonym of H. pachystoma Hombron & Jacquinot, 1841; junior synonym)
Species Helix pachystyla L. Pfeiffer, 1845 (unaccepted, original combination)
Species Helix pachystyloides Cox, 1868 (unaccepted)
Species Helix pacifica L. Pfeiffer, 1846 (unaccepted, original combination)
Species Helix paeteliana L. Pfeiffer, 1859 (unaccepted, original combination)
Species Helix paludicola Benson, 1850 (unaccepted, original combination)
Species Helix papyracea Mawe, 1823 (unaccepted, original combination)
Species Helix paradoxa Born, 1778 (unaccepted, original combination)
Species Helix parramattensis Cox, 1864 (unaccepted, junior synonym)
Species Helix parreyssi L. Pfeiffer, 1853 (unaccepted, junior synonym)
Species Helix parva L. Pfeiffer, 1848 (unaccepted, junior synonym)
Species Helix parvidens Pease, 1861 (unaccepted)
Species Helix patagonica d'Orbigny, 1835 (unaccepted, original combination)
Species Helix pellati Deshayes, 1863 † (unaccepted, new combination)
Species Helix pellisserpentis Gmelin, 1791 (unaccepted, original combination)
Species Helix pelodes Pfeiffer, 1846 (unaccepted, original combination)
Species Helix pentadina d’Orbigny, 1835 (unaccepted, junior synonymy)
Species Helix perelegans Deshayes, 1863 † (unaccepted, new combination)
Species Helix perplicata Benson, 1851 (unaccepted, original combination)
Species Helix perrotteti Petit de la Saussaye, 1841 (unaccepted, original combination)
Species Helix perspicua Linnaeus, 1758 (unaccepted, original combination)
Species Helix perversa Linnaeus, 1758 (unaccepted, original combination)
Species Helix petersi Reuss in Reuss & Meyer, 1849 † (unaccepted, new combination)
Species Helix petraea Montagu, 1803 (unaccepted, synonym)
Species Helix petrobia Benson, 1851 (unaccepted, original combination)
Species Helix petronella L. Pfeiffer, 1853 (unaccepted, original combination)
Species Helix phacodes Thomä, 1845 † (unaccepted, new combination)
Species Helix phaeostoma Pfeiffer, 1877 (unaccepted, original combination)
Species Helix phaseolina Deshayes in Férussac & Deshayes, 1851 † (unaccepted, new combination)
Species Helix philoscia Bourguignat, 1881 † (unaccepted, new combination)
Species Helix phthisica Pfeiffer, 1857 (unaccepted, junior synonym)
Species Helix phytostylus Benson, 1864 (unaccepted, original combination)
Species Helix pictilis Tate, 1878 (unaccepted, junior synonym)
Species Helix pilula Reeve, 1852 (unaccepted)
Species Helix pinacis Benson, 1859 (unaccepted, original combination)
Species Helix pinguis F. Krauss, 1848 (unaccepted, original combination)
Species Helix pinicola Pfeiffer, 1854 (unaccepted, original combination)
Species Helix plagiostoma L.Pfeiffer, 1856 (unaccepted, original combination)
Species Helix planorbis Linnaeus, 1758 (unaccepted, new combination)
Species Helix planti L. Pfeiffer, 1855 (unaccepted, synonym)
Species Helix planulata Lamarck, 1822 (unaccepted, original combination)
Species Helix platae Maton, 1811 (unaccepted, original combination)
Species Helix platti L. Pfeiffer, 1855 (unaccepted, misspelling)
Species Helix plebeium Draparnaud, 1805 (unaccepted, original combination)
Species Helix plectilis Benson, 1853 (unaccepted, original combination)
Species Helix plectostoma Benson, 1836 (unaccepted, original combination)
Species Helix pleuradra Bourguignat, 1881 † (unaccepted, new combination)
Species Helix plicaria Born, 1780 (unaccepted, original combination)
Species Helix plicatella Reuss in Reuss & Meyer, 1849 † (unaccepted, new combination)
Species Helix poecila d'Orbigny, 1835 (unaccepted, original combination)
Species Helix polygyrella Bland & J.G. Cooper, 1861 (unaccepted, new combination)
Species Helix polypleuris Blanford, 1865 (unaccepted, original combination)
Species Helix polyzonalis Lamarck, 1822 (unaccepted, junior synonym)
Species Helix pomum L. Pfeiffer, 1842 (unaccepted)
Species Helix porteri Cox, 1866 (unaccepted, original combination)
Species Helix praecellens Naegele, 1901 (unaccepted, original combination)
Species Helix praetexta L. Pfeiffer, 1871 (unaccepted, junior synonym)
Species Helix prasinata Roth, 1855 (unaccepted, junior synonym)
Species Helix pretiosa Albers, 1850 (unaccepted, junior synonym)
Species Helix priamus Gmelin, 1791 (unaccepted, original combination)
Species Helix princei Liardet, 1876 (unaccepted, original combination)
Species Helix prionacis Benson, 1864 (unaccepted, original combination)
Species Helix propenuda C. B. Adams, 1850 (unaccepted)
Species Helix prophetarum Bourguignat, 1852 (unaccepted, original combination)
Species Helix pseudoglobosa d'Orbigny, 1850 † (unaccepted, new combination)
Species Helix pseudoleioda Suter, 1890 (unaccepted, original combination)
Species Helix pseudomeadei Bednall, 1876 (unaccepted)
Species Helix pseudomiara Bavay & Dautzenberg, 1909 (unaccepted, original combination)
Species Helix pudibunda Cox, 1868 (unaccepted, original combination)
Species Helix punctigera Thomä, 1845 † (unaccepted, new combination)
Species Helix punctum Morelet, 1851 (unaccepted, synonym)
Species Helix punica Morelet, 1851 (unaccepted, junior synonym)
Species Helix pura Alder, 1830 (unaccepted, new combination)
Species Helix purchasi Pfeiffer, 1858 (unaccepted, original combination)
Species Helix purpurea Gmelin, 1791 (unaccepted, basionym)
Species Helix putris Linnaeus, 1758 (unaccepted)
Species Helix pycnia Bourguignat, 1860 (unaccepted, junior synonym)
Species Helix pygmaeum Draparnaud, 1801 (unaccepted, original combination)
Species Helix pyramidata Draparnaud, 1805 (unaccepted, original combination)
Species Helix pyrenaica Draparnaud, 1805 (unaccepted, original combination)
Species Helix quadricincta Morelet, 1864 (unaccepted, original combination)
Species Helix quadrifasciata de Serres, 1853 † (unaccepted, invalid: junior homonym of Helix quadrifasciata Le Guillou, 1842; Frechenia serresi is a replacement name)
Species Helix quercina Pfeiffer, 1857 (unaccepted, original combination)
Species Helix quimperiana Blainville, 1821 (unaccepted, original combination)
Species Helix radama Lesson, 1826 (unaccepted, junior synonym)
Species Helix radicidola Benson, 1848 (unaccepted, original combination)
Species Helix radiella L. Pfeiffer, 1846 (unaccepted, original combination)
Species Helix radiolata Morelet, 1882 (unaccepted, original combination)
Species Helix rahtii Thomä, 1845 † (unaccepted, original combination)
Species Helix ramondi Brongniart, 1810 † (unaccepted, new combination)
Species Helix ramsdeni Angas, 1876 (unaccepted, junior synonym)
Species Helix rapida L. Pfeiffer, 1853 (unaccepted, original combination)
Species Helix rara De Boissy, 1840 † (unaccepted, new combination)
Species Helix rareguttata Mousson, 1849 (unaccepted, original combination)
Species Helix rariplicata L. Pfeiffer, 1849 (unaccepted, original combination)
Species Helix raymondi Saint-Simon, 1848 (unaccepted, original combination)
Species Helix redtenbacheri L. Pfeiffer, 1856 (unaccepted, original combination)
Species Helix reinae L. Pfeiffer, 1856 (unaccepted, original combination)
Species Helix retardata Cox, 1870 (unaccepted, original combination)
Species Helix reteporoides Tate, 1887 (unaccepted, original combination)
Species Helix retipora Cox, 1867 (unaccepted, original combination)
Species Helix retisculpta E. von Martens, 1889 (unaccepted, original combination)
Species Helix retunsa Pease, 1865 (unaccepted, original combination)
Species Helix rhizophorarum Gassies, 1865 (unaccepted, original combination)
Species Helix rhoda Angas, 1876 (unaccepted, original combination)
Species Helix rhombostoma L. Pfeiffer, 1845 (unaccepted, original combination)
Species Helix rhynchonella Tapparone-Canefri, 1886 (unaccepted, junior synonym)
Species Helix richmondiana Reeve, 1852 (unaccepted, original combination)
Species Helix riethmuelleri Tausch, 1886 † (unaccepted, new combination)
Species Helix rigaulti Deshayes, 1863 † (unaccepted, new combination)
Species Helix rivularis F. Krauss, 1848 (unaccepted, original combination)
Species Helix robillardi H. Adams & Angas, 1876 (unaccepted, original combination)
Species Helix roblini Petterd, 1879 (unaccepted, original combination)
Species Helix robusta Reuss in Reuss & Meyer, 1849 † (unaccepted, new combination)
Species Helix rosacea O. F. Müller, 1774 (unaccepted, original combination)
Species Helix rossmaessleri L. Pfeiffer, 1842 (unaccepted, original combination)
Species Helix rotatoria von dem Busch, 1842 (unaccepted, original combination)
Species Helix rothii L. Pfeiffer, 1841 (unaccepted, original combination)
Species Helix rubiginosa Gould, 1846 (unaccepted, junior synonym)
Species Helix rufa Draparnaud, 1805 (unaccepted, original combination)
Species Helix rufescens Grateloup, 1840 (unaccepted, original combination)
Species Helix rufolabris L. Pfeiffer, 1856 (unaccepted, junior synonym)
Species Helix rugata Pease, 1866 (unaccepted, original combination)
Species Helix rupestris Draparnaud, 1801 (unaccepted, original combination)
Species Helix rusticula Gassies, 1859 (unaccepted, original combination)
Species Helix rutilans L. Pfeiffer, 1848 (unaccepted, junior synonym)
Species Helix sabaea Charpentier, 1847 (unaccepted, junior synonym)
Species Helix sabuletorum Benson, 1851 (unaccepted, original combination)
Species Helix saburra Gassies, 1874 (unaccepted, original combination)
Species Helix sachalensis Pfeiffer, 1855 (unaccepted, original combination)
Species Helix sakalava Angas, 1877 (unaccepted, original combination)
Species Helix salaziensis Nevill, 1870 (unaccepted, junior synonym)
Species Helix salvini Tristram, 1863 (unaccepted, original combination)
Species Helix samoa Hombron & Jacquinot, 1841 (unaccepted, original combination)
Species Helix samoensis Baird, 1873 (unaccepted, junior synonym)
Species Helix sannio Pfeiffer, 1854 (unaccepted, junior synonym)
Species Helix sardalabiata Cox, 1871 (unaccepted, original combination)
Species Helix sativa L. Pfeiffer, 1848 (unaccepted, junior synonym)
Species Helix saturni Cox, 1864 (unaccepted, original combination)
Species Helix scabiosa F. Sandberger, 1875 † (unaccepted, new combination; rank changed)
Species Helix scabra Linnaeus, 1758 (unaccepted)
Species Helix scalarina Pfeiffer, 1851 (unaccepted)
Species Helix scandens Cox, 1872 (unaccepted, original combination)
Species Helix scarabaeus Linnaeus, 1758 (unaccepted, original combination)
Species Helix schaerfiae L. Pfeiffer, 1861 (unaccepted, original combination)
Species Helix schärfiae L. Pfeiffer, 1861 (unaccepted, incorrect original spelling)
Species Helix scherzeri Zelebor in L. Pfeiffer & Zelebor, 1867 (unaccepted, original combination)
Species Helix schlosseriana Brusina, 1874 † (unaccepted, new combination)
Species Helix schlumbergeri Morlet, 1886 (unaccepted, original combination)
Species Helix schombrii L. Pfeiffer, 1848 (unaccepted, junior synonym)
Species Helix sciamoica Bourguignat, 1881 † (unaccepted, synonym)
Species Helix scintilla R. T. Lowe, 1852 (unaccepted)
Species Helix sculptilis Pease, 1865 (unaccepted, invalid: junior homonym of Helix sculptilis Bland, 1858)
Species Helix scytodes L. Pfeiffer, 1854 (unaccepted, original combination)
Species Helix sebacea L. Pfeiffer, 1856 (unaccepted, junior synonym)
Species Helix seberti Marie, 1881 (unaccepted)
Species Helix seetzeni L. Pfeiffer, 1847 (unaccepted, original combination)
Species Helix sellersi Cox, 1872 (unaccepted, original combination)
Species Helix semenovi Martens, 1864 (unaccepted, original combination)
Species Helix semilimax J. Férussac, 1802 (unaccepted, original combination)
Species Helix seminium Morelet, 1873 (unaccepted, original combination)
Species Helix semiplicata L. Pfeiffer, 1852 (unaccepted, junior synonym)
Species Helix septemspiralis Razoumowsky, 1789 (unaccepted, new combination)
Species Helix sepulcralis Férussac, 1821 (unaccepted, superseded combination)
Species Helix serena Cox, 1873 (unaccepted, original combination)
Species Helix sericatula Pfeiffer, 1849 (unaccepted, original combination)
Species Helix sericea Draparnaud, 1801 (unaccepted, original combination)
Species Helix serpuloides Montagu, 1808 (unaccepted)
Species Helix setigera Gould, 1844 (unaccepted, invalid: junior homonym of Helix setigera Sowerby, 1841)
Species Helix setubalensis L. Pfeiffer, 1850 (unaccepted, original combination)
Species Helix sexlamellata L. Pfeiffer, 1845 (unaccepted, original combination)
Species Helix sganziniana Crosse & Fischer, 1876 (unaccepted, junior synonym)
Species Helix shermani L. Pfeiffer, 1866 (unaccepted, original combination)
Species Helix silvana Klein, 1853 † (unaccepted, new combination)
Species Helix similaris Rang, 1831 (unaccepted, junior homonym)
Species Helix simulata Ehrenberg, 1831 (unaccepted, original combination)
Species Helix smimensis Mousson, 1849 (unaccepted)
Species Helix socia L. Pfeiffer, 1853 (unaccepted, junior synonym)
Species Helix solida Born, 1778 (unaccepted, original combination)
Species Helix solorensis Martens, 1863 (unaccepted, original combination)
Species Helix sophiae Reeve, 1854 (unaccepted, original combination)
Species Helix souleyetiana Petit de la Saussaye, 1841 (unaccepted, original combination)
Species Helix souverbiana Fischer, 1860 (unaccepted, original combination)
Species Helix sparnacensis Deshayes, 1863 † (unaccepted, new combination)
Species Helix spheroidea Le Guillou, 1842 (unaccepted)
Species Helix spiriplana Olivier, 1801 (unaccepted, original combination)
Species Helix splendescens Cox, 1865 (unaccepted, original combination)
Species Helix splendida Draparnaud, 1801 (unaccepted, original combination)
Species Helix sporadica d'Orbigny, 1835 (unaccepted, junior synonym)
Species Helix spratti L. Pfeiffer, 1846 (unaccepted, original combination)
Species Helix stagnalis Linnaeus, 1758 (unaccepted, original combination)
Species Helix stagnorum Gmelin, 1791 (unaccepted)
Species Helix steinheimensis Klein, 1846 † (unaccepted, junior synonym)
Species Helix stellula Gould, 1844 (unaccepted, original combination)
Species Helix stenospira Reuss in Reuss & Meyer, 1849 † (unaccepted, new combination)
Species Helix stenotrypta Sandberger, 1858 † (unaccepted, objective junior synonym: Helix lapidaria Thomä, 1845 is listed in synonymy, albeit being an available taxon; new combination)
Species Helix stenozona Möllendorff, 1884 (unaccepted, original combination)
Species Helix stilpna Mabille, 1884 (unaccepted, original combination)
Species Helix stipulata Reeve, 1852 (unaccepted)
Species Helix stragulum Crosse & Fischer, 1873 (unaccepted, junior synonym)
Species Helix straminiformis Bourguignat, 1876 (unaccepted, junior synonym)
Species Helix strebeli L. Pfeiffer, 1862 (unaccepted, original combination)
Species Helix streptaxon Reeve, 1852 (unaccepted, basionym)
Species Helix strigella Draparnaud, 1801 (unaccepted, original combination)
Species Helix stuartiae L. Pfeiffer, 1845 (unaccepted, original combination)
Species Helix stueri Cossmann, 1892 † (unaccepted, new combination)
Species Helix stumpfii Kobelt, 1880 (unaccepted, original combination)
Species Helix sturmiana L. Pfeiffer, 1853 (unaccepted, synonym)
Species Helix suarezensis Crosse & Fischer, 1877 (unaccepted, original combination)
Species Helix subangulosa Zieten, 1832 † (unaccepted, new combination)
Species Helix subcarinata Montagu, 1803 (unaccepted, original combination)
Species Helix subcarinata Wood, 1828 (unaccepted, invalid: junior homonym of Helix subcarinata Montagu, 1803)
Species Helix subcoacta Gassies, 1870 (unaccepted, original combination)
Species Helix subcylindrica Linnaeus, 1767 (unaccepted)
Species Helix subfunebris Mabille, 1886 (unaccepted, junior synonym)
Species Helix subglobosa Grateloup, 1828 † (unaccepted, new combination)
Species Helix submissa Deshayes, 1874 (unaccepted, original combination)
Species Helix subnitens Klein, 1853 † (unaccepted, new combination)
Species Helix subrepta Hombron & Jacquinot, 1854 (unaccepted, junior synonym)
Species Helix subrogata L. Pfeiffer, 1853 (unaccepted, original combination)
Species Helix subrugata Reeve, 1852 (unaccepted, original combination)
Species Helix subrugosa Legrand, 1871 (unaccepted, original combination)
Species Helix subsepulcralis Crosse, 1868 (unaccepted, original combination)
Species Helix subsulcosa Thomä, 1845 † (unaccepted, new combination)
Species Helix subtilisticta Sandberger, 1875 † (unaccepted, new combination)
Species Helix sudensis L. Pfeiffer, 1846 (unaccepted, original combination)
Species Helix sulcosa L. Pfeiffer, 1854 (unaccepted, original combination)
Species Helix sulphurea C. B. Adams, 1849 (unaccepted, Synonym - Not available)
Species Helix superflua L. Pfeiffer, 1849 (unaccepted, original combination)
Species Helix supracostulata Schepman, 1892 (unaccepted, original combination)
Species Helix sutilosa Férussac, 1839 (unaccepted, original combination)
Species Helix swinhoei L. Pfeiffer, 1866 (unaccepted, original combination)
Species Helix sylvatica Draparnaud, 1801 (unaccepted, original combination)
Species Helix symmetrica Craven, 1881 (unaccepted, original combination)
Species Helix syrensis L. Pfeiffer, 1846 (unaccepted, original combination)
Species Helix tamarensis Petterd, 1879 (unaccepted, original combination)
Species Helix tanschauricus Gmelin, 1791 (unaccepted, original combination)
Species Helix tarentina L. Pfeiffer, 1848 (unaccepted, original combination)
Species Helix taslei Crosse, 1874 (unaccepted, original combination)
Species Helix tasmaniae Cox, 1868 (unaccepted, original combination)
Species Helix tayloriana A. Adams & Reeve, 1850 (unaccepted, original combination)
Species Helix tentaculata Linnaeus, 1758 (unaccepted, original combination)
Species Helix tentoriolum Gould, 1846 (unaccepted, original combination)
Species Helix tenuicostata L. Pfeiffer, 1846 (unaccepted, junior synonym)
Species Helix terebellum O. F. Müller, 1774 (unaccepted)
Species Helix teresae Benoit, 1843 (unaccepted, junior synonym)
Species Helix terveriana Grateloup, 1840 (unaccepted, junior synonym)
Species Helix thatcheri Cox, 1870 (unaccepted, junior synonym)
Species Helix thomaeana A. Braun in Walchner, 1851 † (unaccepted, new combination)
Species Helix tiara Mighels, 1845 (unaccepted, original combination)
Species Helix tollini Benson, 1856 (unaccepted, original combination)
Species Helix tomsetti Tate, 1887 (unaccepted, original combination)
Species Helix torallii d'Orbigny, 1835 (unaccepted, original combination)
Species Helix tortilabia Lesson, 1831 (unaccepted, original combination)
Species Helix toukriana Bourguignat in Péchaud, 1883 (unaccepted, junior synonym)
Species Helix tricolor Pfeiffer, 1850 (unaccepted, original combination)
Species Helix tridens O.F. Müller, 1774 (unaccepted, original combination)
Species Helix trigrammephora d'Orbigny, 1838 (unaccepted, original combination)
Species Helix trisinuata Martens, 1867 (unaccepted, original combination)
Species Helix tristis L. Pfeiffer, 1845 (unaccepted, junior synonym)
Species Helix trizona Rossmässler, 1834 (unaccepted, original combination)
Species Helix trochiformis L. Pfeiffer, 1842 (unaccepted, invalid: junior homonym of Helix trochiformis Montagu, 1803)
Species Helix trochoides Deshayes, 1838 (unaccepted, invalid: junior homonym of Helix trochoides Poiret, 1789)
Species Helix trochus O. F. Müller, 1774 (unaccepted, original combination)
Species Helix trochus Quoy & Gaimard, 1832 (unaccepted, invalid: junior homonym of Helix trochus Müller, 1774)
Species Helix troglodytes Morelet, 1848 (unaccepted, original combination)
Species Helix troilus Gould, 1846 (unaccepted, original combination)
Species Helix tropifera F.E. Edwards, 1852 † (unaccepted, new combination)
Species Helix trotteriana Benson, 1848 (unaccepted, original combination)
Species Helix tunetana L. Pfeiffer, 1850 (unaccepted, original combination)
Species Helix tupacii d'Orbigny, 1835 (unaccepted, original combination)
Species Helix turbinata Deshayes, 1831 (unaccepted, junior synonym)
Species Helix turonensis Deshayes, 1832 † (unaccepted, new combination)
Species Helix turricula Hombron & Jacquinot, 1852 (unaccepted, invalid: junior homonym of Helix turricula Lowe, 1833)
Species Helix uitenhagensis F. Krauss in L. Pfeiffer, 1846 (unaccepted, original combination)
Species Helix unguis d'Orbigny, 1836 (unaccepted, original coimbination)
Species Helix ungulina Linnaeus, 1758 (unaccepted, original combination)
Species Helix unicolor L. Pfeiffer, 1845 (unaccepted, original combination)
Species Helix unidentata Holten, 1802 (unaccepted, original combination)
Species Helix unidentata Draparnaud, 1805 (unaccepted, original combination)
Species Helix uniplicata A. Braun in Walchner, 1851 † (unaccepted, new combination)
Species Helix urnula L. Pfeiffer, 1855 (unaccepted)
Species Helix urvillei Hombron & Jacquinot, 1847 (unaccepted, unjustified emendation)
Species Helix usambarica Craven, 1880 (unaccepted, original combination)
Species Helix valida C. B. Adams, 1850 (unaccepted)
Species Helix vanikorensis Quoy & Gaimard, 1832 (unaccepted, original combination)
Species Helix vargasiana L. Pfeiffer, 1849 (unaccepted, junior synonym)
Species Helix variabilis Megerle von Mühlfeld, 1824 (unaccepted)
Species Helix varica O. F. Müller, 1774 (unaccepted, original combination)
Species Helix vaysseti Marie, 1871 (unaccepted, original combination)
Species Helix ventricosa De Cristofori & Jan, 1832 (unaccepted, junior synonym)
Species Helix venulatus Pfeiffer, 1857 (unaccepted)
Species Helix vermiculata O.F. Müller, 1774 (unaccepted, new combination)
Species Helix vermiplicata Wollaston, 1878 (unaccepted, original combination)
Species Helix vernicosa Krauss, 1848 (unaccepted, original combination)
Species Helix verticillata L. Pfeiffer, 1870 (unaccepted, original combination)
Species Helix verticilloides Thomä, 1845 † (unaccepted, new combination)
Species Helix vesconis Morelet, 1851 (unaccepted, original combination)
Species Helix vesicalis Lamarck, 1822 (unaccepted, original combination)
Species Helix vesta L. Pfeiffer, 1866 (unaccepted, original combination)
Species Helix vestalis L. Pfeiffer, 1841 (unaccepted, junior synonym)
Species Helix vetula Gassies, 1858 (unaccepted, original combination)
Species Helix vexillaris Pfeiffer, 1855 (unaccepted, original combination)
Species Helix villae L. Pfeiffer, 1856 (unaccepted, junior synonym)
Species Helix villosa Draparnaud, 1805 (unaccepted, original combination)
Species Helix vincentina Crosse, 1870 (unaccepted, original combination)
Species Helix vinitincta Cox, 1868 (unaccepted, original combination)
Species Helix virgo Broderip, 1841 (unaccepted, original combination)
Species Helix viridescens Melvill & Ponsonby, 1891 (unaccepted)
Species Helix viridis Deshayes, 1838 (unaccepted, original combination)
Species Helix vitrea Born, 1778 (unaccepted, original combination)
Species Helix vitrinaformis Legrand, 1871 (unaccepted, junior synonym)
Species Helix vitrinoides Deshayes, 1831 (unaccepted, original combination)
Species Helix vittata O. F. Müller, 1774 (unaccepted, original combination)
Species Helix vivipara Linnaeus, 1758 (unaccepted, original combination)
Species Helix volutella Gassies, 1858 (unaccepted, invalid: junior homonym of Helix volutella L. Pfeiffer, 1856)
Species Helix volutella L. Pfeiffer, 1856 (unaccepted, original combination)
Species Helix volvulus O. F. Müller, 1774 (unaccepted, original combination)
Species Helix vortex Linnaeus, 1758 (unaccepted, original combination)
Species Helix vorticalis Benson, 1850 (unaccepted, original combination)
Species Helix votiophila Bourguignat, 1881 † (unaccepted, synonym)
Species Helix wairarapa Suter, 1890 (unaccepted, original combination)
Species Helix watersi Angas, 1877 (unaccepted, original combination)
Species Helix watsoniana Wollaston, 1878 (unaccepted, original combination)
Species Helix welebitana L. Pfeiffer, 1847 (unaccepted, original combination)
Species Helix welwitschi Morelet, 1866 (unaccepted, original combination)
Species Helix winteriana Pfeiffer, 1842 (unaccepted, original combination)
Species Helix woodlarkiana Souverbie, 1863 (unaccepted, original combination)
Species Helix xanthochila Pfeiffer, 1861 (unaccepted, original combination)
Species Helix xiphias L. Pfeiffer, 1856 (unaccepted, original combination)
Species Helix xystera L. Pfeiffer, 1841 (unaccepted, original combination)
Species Helix yleobia Bourguignat, 1883 (unaccepted, junior synonym)
Species Helix zanguebarica Craven, 1880 (unaccepted, synonym)
Species Helix zelandiae Gray, 1843 (unaccepted)
Species Helix zelebori L. Pfeiffer, 1853 (unaccepted, original combination)
Species Helix zellii Kurr, 1856 † (unaccepted, junior synonym)
Species Helix zenobia L. Pfeiffer, 1863 (unaccepted, original combination)
Species Helix zippei Reuss in Reuss & Meyer, 1849 † (unaccepted, new combination)
Species Helix zonella L. Pfeiffer, 1865 (unaccepted, original combination)
marine, brackish, fresh, terrestrial
Linnaeus, C. (1758). Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. <em>Editio decima, reformata. Laurentius Salvius: Holmiae.</em> ii, 824 pp., available online at http://www.biodiversitylibrary.org/item/10277#page/3/mode/1up [details]  Available for editors  PDF available [request] 
MolluscaBase (2018). Helix Linnaeus, 1758. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=153970 on 2018-12-09
Date
action
by
2005-04-16 10:28:02Z
created
2011-04-13 19:02:27Z
checked
2013-08-25 14:19:53Z
changed
2017-01-12 08:06:05Z
changed
2017-04-25 07:58:35Z
changed
2017-06-15 07:03:19Z
changed

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original description Linnaeus, C. (1758). Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. <em>Editio decima, reformata. Laurentius Salvius: Holmiae.</em> ii, 824 pp., available online at http://www.biodiversitylibrary.org/item/10277#page/3/mode/1up [details]  Available for editors  PDF available [request] 

additional source Korábek, O., Petrusek, A., Neubert, E. & Juřičková, L. (2015). Molecular phylogeny of the genusHelix(Pulmonata: Helicidae). <em>Zoologica Scripta.</em> 44(3): 263-280., available online at https://doi.org/10.1111/zsc.12101 [details]  Available for editors  PDF available [request] 

additional source Neubert, E. (2014). Revision of Helix Linnaeus, 1758 in its eastern Mediterranean distribution area, and reassignment of Helix godetiana Kobelt, 1878 to Maltzanella Hesse, 1917 (Gastropoda, Pulmonata, Helicidae). Contributions to Natural History, 26: 1-200. Bern [5 December]. [details]  Available for editors  PDF available [request]