• Lacuna W. Turton, 1827
• Lacuna (Cirsope) Cossmann, 1888 † accepted as Cirsope Cossmann, 1888 †
• Lacuna (Entomope) Cossmann, 1888 † accepted as Entomope Cossmann, 1888 †
• Lacuna (Entomope) cossmanni O. Boettger, 1907 † (uncertain > unassessed)
• Lacuna (Entomope) detrita O. Boettger, 1907 † accepted as Medoriopsis detrita (O. Boettger, 1907) †
• Lacuna (Epheria) Leach, 1847 accepted as Lacuna W. Turton, 1827
• Lacuna (Epheria) canalis (Montagu, 1803) accepted as Lacuna vincta (Montagu, 1803)
• Lacuna (Epheria) cancavennensis Martel, 1914 (uncertain > taxon inquirendum)
• Lacuna (Epheria) decorata A. Adams, 1861 accepted as Lacuna decorata A. Adams, 1861
• Lacuna (Epheria) divaricata (O. Fabricius, 1780) accepted as Lacuna vincta (Montagu, 1803)
• Lacuna (Epheria) fasciata (J. Adams, 1800) accepted as Lacuna parva (da Costa, 1778)
• Lacuna (Epheria) inflata (A. Adams, 1861) accepted as Lacuna decorata A. Adams, 1861
• Lacuna (Epheria) lepidula A. Adams, 1863 accepted as Lacuna lepidula A. Adams, 1863
• Lacuna (Epheria) porrecta P. P. Carpenter, 1864 accepted as Lacuna porrecta P. P. Carpenter, 1864
• Lacuna (Epheria) vincta (Montagu, 1803) accepted as Lacuna vincta (Montagu, 1803)
• Lacuna (Haloconcha) Dall, 1886 accepted as Lacuna W. Turton, 1827
• Lacuna (Hela) Jeffreys, 1870 accepted as Benthonella Dall, 1889
• Lacuna (Hela) margaritifera R. B. Watson, 1880 accepted as Benthonella margaritifera (R. B. Watson, 1886)
• Lacuna (Lacunella) Dall, 1884 accepted as Lacuna W. Turton, 1827
• Lacuna (Lacunella) reflexa Dall, 1884 accepted as Lacuna reflexa Dall, 1884
• Lacuna (Lacunella) refleza Dall, 1884 accepted as Lacuna reflexa Dall, 1884
• Lacuna (Medoria) Leach, 1847 accepted as Lacuna W. Turton, 1827
• Lacuna (Medoria) succinea Mörch, 1860 (uncertain > unassessed)
• Lacuna (Medoria) turrita (A. Adams, 1861) accepted as Lacuna turrita A. Adams, 1861
• Lacuna (Medoriopsis) Cossmann, 1888 † accepted as Medoriopsis Cossmann, 1888 †
• Lacuna (Pseudocirsope) O. Boettger, 1907 † accepted as Pseudocirsope O. Boettger, 1907 †
• Lacuna (Pseudocirsope) galeodina O. Boettger, 1907 † accepted as Pseudocirsope galeodina (O. Boettger, 1907) †
• Lacuna abyssicola Melvill & Standen, 1912 accepted as Moelleriopsis poppei Engl, 2012
• Lacuna abyssorum Locard, 1896 accepted as Benthonella tenella (Jeffreys, 1869)
• Lacuna actaeonoides Cossmann, 1888 † accepted as Medoriopsis actaeonoides (Cossmann, 1888) †
• Lacuna albella Lovén, 1846 accepted as Lacuna vincta (Montagu, 1803)
• Lacuna amaura Cossmann, 1888 †
• Lacuna anomala Cossmann, 1882 † accepted as Pseudocirsope anomala (Cossmann, 1882) †
• Lacuna antarctica E. von Martens, 1885 accepted as Laevilacunaria antarctica (E. von Martens, 1885)
• Lacuna antiqua McCoy, 1844 † (uncertain > unassessed)
• Lacuna aratulus Cossmann, 1888 † accepted as Orthochilus aratulus (Cossmann, 1888) †
• Lacuna arctica R. A. Philippi, 1853 accepted as Lacuna vincta (Montagu, 1803)
• Lacuna azonata Locard, 1886 accepted as Megalomphalus azoneus (Brusina, 1865)
• Lacuna banatica O. Boettger, 1902 † (uncertain > unassessed)
• Lacuna bicincta Gougerot & Le Renard, 1982 † accepted as Pseudocirsope bicincta (Gougerot & Le Renard, 1982) †
• Lacuna billiardi Cossmann, 1893 † accepted as Medoriopsis billiardi (Cossmann, 1893) †
• Lacuna bonneti Cossmann, 1913 † accepted as Lacunella bonneti (Cossmann, 1913) †
• Lacuna borealis R. A. Philippi, 1853 accepted as Lacuna vincta (Montagu, 1803)
• Lacuna bourgeoisi Tournouër, 1874 † accepted as Pseudocirsope delphinuloides (Millet, 1865) †
• Lacuna bourguignati Rochebrune, 1882 accepted as Fossarus ambiguus (Linnaeus, 1758)
• Lacuna bronni (Wissmann, 1841) † (uncertain > unassessed)
• Lacuna bulimoides Deshayes, 1861 † accepted as Lacunella bulimoides (Deshayes, 1861) †
• Lacuna bulimopsis Deshayes, 1861 † accepted as Medoriopsis bulimopsis (Deshayes, 1861) †
• Lacuna canalifera Laube, 1870 † (uncertain > unassessed)
• Lacuna canalis (Montagu, 1803) accepted as Lacuna vincta (Montagu, 1803)
• Lacuna carinata A. Gould, 1848 accepted as Lacuna vincta (Montagu, 1803)
• Lacuna carinifera A. Adams, 1853
• Lacuna circumvallata Cossmann, 1888 † accepted as Pseudocirsope circumvallata (Cossmann, 1888) †
• Lacuna cleicecabrale J. Barros, 1994
• Lacuna cliona de Raincourt & Munier-Chalmas, 1863 † accepted as Cymenorytis cliona (de Raincourt & Munier-Chalmas, 1863) †
• Lacuna cochlearella Cossmann, 1888 † accepted as Medoriopsis cochlearella (Cossmann, 1888) †
• Lacuna compacta P. P. Carpenter, 1864 (uncertain > unassessed)
• Lacuna compressa Cossmann, 1888 † accepted as Lacunella compressa (Cossmann, 1888) †
• Lacuna cossmanni Locard, 1897 accepted as Benthobia tryonii Dall, 1889
• Lacuna craspedomphalus Cossmann, 1888 † accepted as Pseudocirsope craspedomphalus (Cossmann, 1888) †
• Lacuna crassior (Montagu, 1803)
• Lacuna crassior var. glacialis (Moller, 1842) accepted as Lacuna crassior (Montagu, 1803)
• Lacuna cuisensis Cossmann, 1888 † accepted as Epheria cuisensis (Cossmann, 1888) †
• Lacuna decorata A. Adams, 1861
• Lacuna degrangei Cossmann & Peyrot, 1919 † accepted as Pseudocirsope degrangei (Cossmann & Peyrot, 1919) †
• Lacuna dialyta Cossmann, 1896 †
• Lacuna disjuncta de Raincourt & Munier-Chalmas, 1863 † accepted as Macromphalus disjunctus (de Raincourt & Munier-Chalmas, 1863) †
• Lacuna divaricata (O. Fabricius, 1780) accepted as Lacuna vincta (Montagu, 1803)
• Lacuna dudariensis Strausz, 1966 † (uncertain > taxon inquirendum)
• Lacuna dutemplii Deshayes, 1861 †
• Lacuna eburnaeformis F. Sandberger, 1859 † accepted as Pseudocirsope eburnaeformis (F. Sandberger, 1859) †
• Lacuna effusa Deshayes, 1861 † accepted as Medoriopsis effusa (Deshayes, 1861) †
• Lacuna elegans Deshayes, 1861 † accepted as Macromphalus elegans (Deshayes, 1861) †
• Lacuna exilis Murdoch, 1900 † accepted as Radinista exilis (Murdoch, 1900) †
• Lacuna fragilis Deshayes, 1861 † accepted as Nozeba fragilis (Deshayes, 1861) †
• Lacuna frigida Lovén, 1846 accepted as Lacuna vincta (Montagu, 1803)
• Lacuna glacialis Møller, 1842 accepted as Lacuna crassior (Montagu, 1803)
• Lacuna globosa E. A. Smith, 1904 (uncertain > taxon inquirendum)
• Lacuna globulosa Deshayes, 1861 †
• Lacuna globulus Kittl, 1887 † (uncertain > unassessed)
• Lacuna gracilior Metcalfe, 1844 accepted as Lacuna vincta (Montagu, 1803)
• Lacuna grandis Cossmann, 1902 †
• Lacuna heberti Vélain, 1877 accepted as Rissoella heberti (Vélain, 1877)
• Lacuna hoernesi O. Boettger, 1902 † (uncertain > unassessed)
• Lacuna houdasi Cossmann, 1913 †
• Lacuna indica E. A. Smith, 1894 accepted as Macromphalus indicus (E. A. Smith, 1894)
• Lacuna inflata A. Adams, 1861 accepted as Lacuna decorata A. Adams, 1861
• Lacuna intermedia Locard, 1886 accepted as Lacuna parva (da Costa, 1778)
• Lacuna intermedia Makiyama, 1927 † (accepted > unreplaced junior homonym)
• Lacuna labiosa Lovén, 1846 accepted as Lacuna vincta (Montagu, 1803)
• Lacuna latifasciata A. Adams, 1863
• Lacuna lepidula A. Adams, 1863
• Lacuna loustaui Deshayes, 1861 † accepted as Epheria loustaui (Deshayes, 1861) †
• Lacuna loveni Bayan, 1873 † accepted as Elachisina loveni (Bayan, 1873) †
• Lacuna lukinii (A. N. Golikov & Gulbin, 1978)
• Lacuna macmurdensis Hedley, 1911 accepted as Trilirata macmurdensis (Hedley, 1911)
• Lacuna macromphalus Morlet, 1888 † accepted as Pseudocirsope macromphalus (Morlet, 1888) †
• Lacuna macrostoma Deshayes, 1861 † accepted as Lacunaria macrostoma (Deshayes, 1861) †
• Lacuna margaritifera R. B. Watson, 1880 accepted as Benthonella margaritifera (R. B. Watson, 1886)
• Lacuna marginata Deshayes, 1861 † accepted as Cirsope marginata (Deshayes, 1861) †