• Siphonacmaea [sic] accepted as Siphonacmea Habe, 1958
• Siphonacmaea oblongata [sic] accepted as Siphonacmea oblongata (Yokoyama, 1926)
• Siphonacme Cook & Loomis, 1928
• Siphonacme aviceps (Loomis, 1961) accepted as Columbianum aviceps (Loomis, 1961)
• Siphonacme dawydoffi (Attems, 1938)
• Siphonacme globiceps (Pocock, 1903) accepted as Siphonophora globiceps Pocock, 1903
• Siphonacme lyttoni Cook & Loomis, 1928
• Siphonacme pseustes (Chamberlin, 1923)
• Siphonacme takashimai (Takakuwa, 1942)
• Siphonacme verrucosa (Attems, 1930) accepted as Balizonium verrucosum (Attems, 1930)
• Siphonacme villosa (Attems, 1938) accepted as Siphonophora villosa Attems, 1938
• Siphonacmea Habe, 1958
• Siphonacmea oblongata (Yokoyama, 1926)
• Siphonacmeidae Starobogatov, 1976 accepted as Siphonariidae Gray, 1827
• Siphonactinia Koren & Danielssen, 1856
• Siphonactinia (Peachia) (uncertain > unassessed)
• Siphonactinia (Peachia) boeckii (Dan. & Kor., 1856) accepted as Peachia boeckii (Danielssen & Koren, 1856) accepted as Peachia hastata Gosse, 1855
• Siphonactinia beckii accepted as Peachia boeckii (Danielssen & Koren, 1856) accepted as Peachia hastata Gosse, 1855
• Siphonactinia boecki Danielssen & Koren, 1856 accepted as Peachia boeckii (Danielssen & Koren, 1856) accepted as Peachia hastata Gosse, 1855
• Siphonactinia boeckii Danielssen & Koren, 1856 accepted as Peachia boeckii (Danielssen & Koren, 1856) accepted as Peachia hastata Gosse, 1855
• Siphonactinia hastata Gosse accepted as Peachia hastata Gosse, 1855
• Siphonactinia parasitica (Agassiz, 1861) accepted as Peachia parasitica (Agassiz, 1861)
• Siphonactinia tricapitata Andres, 1883 accepted as Peachia hastata Gosse, 1855
• Siphonactinia triphylla Gosse accepted as Peachia hastata Gosse, 1855
• Siphonactinia undata Gosse accepted as Peachia hastata Gosse, 1855
• Siphonactinopsis Carlgren, 1921
• Siphonactinopsis laevis Carlgren, 1921
• Siphonalia A. Adams, 1863
• Siphonalia (Kelletia) P. Fischer, 1884 accepted as Kelletia P. Fischer, 1884
• Siphonalia (Lyrofusus) de Gregorio, 1880 † accepted as Lyrofusus de Gregorio, 1880 †
• Siphonalia (Lyrofusus) vasseuri Cossmann, 1889 † accepted as Pseudoneptunea vasseuri (Cossmann, 1889) †
• Siphonalia acuminata A. Adams, 1863 accepted as Nassaria acutispirata (G. B. Sowerby III, 1913)
• Siphonalia arctata Staadt, 1913 †
• Siphonalia arenaria Cossmann, 1889 † accepted as Suessionia arenaria (Cossmann, 1889) †
• Siphonalia ariejansseni Schnetler, 2001 †
• Siphonalia aspersa Kuroda & Habe in Habe, 1961
• Siphonalia bervillei (Deshayes, 1864) †
• Siphonalia borshengjungi K.-Y. Lai, 2019
• Siphonalia callizona Kuroda & Habe in Habe, 1961
• Siphonalia cassidariaeforme accepted as Siphonalia cassidariaeformis (Reeve, 1846)
• Siphonalia cassidariaeformis (Reeve, 1846)
• Siphonalia cassidariaeformis var. funerea Pilsbry, 1895 (uncertain > taxon inquirendum)
• Siphonalia chaussyensis Cossmann, 1889 † accepted as Siphonaliopsis chaussyensis (Cossmann, 1889) †
• Siphonalia cingulata Hutton, 1885 † accepted as Cominella cingulata (Hutton, 1885) †
• Siphonalia clarkei Tenison Woods, 1876 accepted as Tasmeuthria clarkei (Tenison Woods, 1876)
• Siphonalia colus A. Adams, 1863 accepted as Siphonalia modificata (Reeve, 1846)
• Siphonalia commoda A. Adams, 1863 (uncertain > taxon inquirendum)
• Siphonalia compacta Suter, 1917 † accepted as Nassicola compacta (Suter, 1917) †
• Siphonalia concinna A. Adams, 1863
• Siphonalia conspersa A. Adams, 1863 (uncertain > taxon inquirendum)
• Siphonalia corrugata A. Adams, 1863 accepted as Siphonalia cassidariaeformis (Reeve, 1846)
• Siphonalia elegans Suter, 1917 accepted as Aeneator elegans (Suter, 1917)
• Siphonalia excelsa Suter, 1917 † accepted as Glaphyrina excelsa (Suter, 1917) †
• Siphonalia filosa A. Adams, 1863 accepted as Siphonalia spadicea (Reeve, 1847)
• Siphonalia flexuosa P. Marshall, 1918 † accepted as Austrofusus flexuosus (P. Marshall, 1918) †
• Siphonalia fortini Chédeville, 1904 † accepted as Pseudoneptunea fortini (Chédeville, 1904) †
• Siphonalia fuscolineata (Pease, 1860) accepted as Siphonalia spadicea (Reeve, 1847)
• Siphonalia fusoides (Reeve, 1846)
• Siphonalia grisea A. Adams, 1863 accepted as Siphonalia cassidariaeformis (Reeve, 1846)
• Siphonalia hinnulus (A. Adams & Reeve, 1850)
• Siphonalia hirasei Kuroda & Habe in Habe, 1961
• Siphonalia hyperodon Pilsbry, 1895 accepted as Siphonalia mikado Melvill, 1888
• Siphonalia kawaensis Bartrum, 1919 † accepted as Zelandiella propenodosa (Bartrum, 1919) †
• Siphonalia kelletti [sic] accepted as Kelletia kelletii (Forbes, 1852)
• Siphonalia kikaigashimana Hirase, 1908
• Siphonalia kuronoi T. C. Lan & Goto, 2004
• Siphonalia laddi MacNeil, 1961 accepted as Manaria kuroharai Azuma, 1960
• Siphonalia leei S.-Q. Zhang & S.-P. Zhang, 2018
• Siphonalia ligata A. Adams, 1863 (uncertain)
• Siphonalia longirostris Dunker, 1882 accepted as Siphonalia fusoides (Reeve, 1846)
• Siphonalia lubrica Dall, 1918 accepted as Siphonofusus lubricus (Dall, 1918)
• Siphonalia marybethi Parth, 1996
• Siphonalia maxima Tryon, 1881 accepted as Penion maximus (Tryon, 1881)
• Siphonalia mikado Melvill, 1888
• Siphonalia minor S.-Q. Zhang, S.-P. Zhang & C.-Y. Lee, 2021
• Siphonalia modificata (Reeve, 1846)
• Siphonalia modificatum [sic] accepted as Siphonalia modificata (Reeve, 1846)
• Siphonalia morteni Schnetler & M. S. Nielsen, 2018 †
• Siphonalia nanshaensis S.-Q. Zhang & S.-P. Zhang, 2018
• Siphonalia nigrobrunnea C.-Y. Lee & C.-L. Chen, 2010
• Siphonalia nodosa (Martyn, 1784) accepted as Austrofusus glans (Röding, 1798)
• Siphonalia nodosa acuticostata Suter, 1917 † accepted as Austrofusus acuticostatus (Suter, 1917) †
• Siphonalia nodosa zitteli Suter, 1914 † accepted as Austrofusus zitteli (Suter, 1914) †
• Siphonalia oligostira Tate, 1891 accepted as Penion mandarinus (Duclos, 1832)
• Siphonalia orbita Hutton, 1885 † accepted as Aeneator orbitus (F. W. Hutton, 1885) †
• Siphonalia ornata A. Adams, 1863 accepted as Siphonalia cassidariaeformis (Reeve, 1846)
• Siphonalia pallida (Broderip & G. B. Sowerby I, 1829) accepted as Solenosteira pallida (Broderip & G. B. Sowerby I, 1829)
• Siphonalia pfefferi G. B. Sowerby III, 1900
• Siphonalia pfeifferi [sic] accepted as Siphonalia pfefferi G. B. Sowerby III, 1900
• Siphonalia propenodosa Bartrum, 1919 † accepted as Zelandiella propenodosa (Bartrum, 1919) †
• Siphonalia pseudobuccinum Melvill, 1888 accepted as Siphonalia modificata (Reeve, 1846)
• Siphonalia riparia Lozouet, 1999 † accepted as Oligonalia riparia (Lozouet, 1999) †
• Siphonalia semiplicata Pilsbry, 1896 accepted as Siphonalia fusoides (Reeve, 1846)
• Siphonalia senilis P. Marshall & Murdoch, 1920 † accepted as Marshallaria senilis (P. Marshall & Murdoch, 1920) †
• Siphonalia signa (Reeve, 1846) accepted as Siphonalia signum (Reeve, 1846)
• Siphonalia signum (Reeve, 1846)
• Siphonalia spadicea (Reeve, 1847)
• Siphonalia stearnsii Pilsbry, 1894 accepted as Siphonalia modificata (Reeve, 1846)
• Siphonalia subdilatata T.-C. Yen, 1936 accepted as Neptunea subdilatata (T.-C. Yen, 1936)
• Siphonalia teres S.-Q. Zhang, S.-P. Zhang & C.-Y. Lee, 2021