1. Species Siphonalia aspersa Kuroda & T. Habe, 1961
2. Species Siphonalia borshengjungi K.-Y. Lai, 2019
3. Species Siphonalia callizona Kuroda & T. Habe, 1961
4. Species Siphonalia cassidariaeformis (Reeve, 1846)
5. Species Siphonalia concinna A. Adams, 1863
6. Species Siphonalia fusoides (Reeve, 1846)
7. Species Siphonalia hinnulus (A. Adams & Reeve, 1850)
8. Species Siphonalia hirasei Kuroda & T. Habe, 1961
9. Species Siphonalia kikaigashimana Y. Hirase, 1908
10. Species Siphonalia kuronoi T. C. Lan & Goto, 2004
11. Species Siphonalia leei S.-Q. Zhang & S.-P. Zhang, 2018
12. Species Siphonalia marybethi Parth, 1996
13. Species Siphonalia mikado Melvill, 1888
14. Species Siphonalia minor S.-Q. Zhang, S.-P. Zhang & C.-Y. Lee, 2021
15. Species Siphonalia modificata (Reeve, 1846)
16. Species Siphonalia nanshaensis S.-Q. Zhang & S.-P. Zhang, 2018
17. Species Siphonalia nigrobrunnea C.-Y. Lee & C.-L. Chen, 2010
18. Species Siphonalia pfefferi G. B. Sowerby III, 1900
19. Species Siphonalia signum (Reeve, 1846)
20. Species Siphonalia soyomaruae Okutani, 1972
21. Species Siphonalia spadicea (Reeve, 1847)
22. Species Siphonalia teres S.-Q. Zhang, S.-P. Zhang & C.-Y. Lee, 2021
23. Species Siphonalia trochulus (Reeve, 1846)
24. Species Siphonalia vanattai Pilsbry, 1905
25. Subgenus Siphonalia (Kelletia) P. Fischer, 1884 accepted as Kelletia P. Fischer, 1884 (original rank)
26. Subgenus Siphonalia (Penion) P. Fischer, 1884 accepted as Penion P. Fischer, 1884 (superseded combination)
27. Subgenus Siphonalia (Pseudoneptunea) Kobelt, 1882 accepted as Pseudoneptunea Kobelt, 1882 (unaccepted > superseded rank)
28. Species Siphonalia cassidariaeforme [sic] accepted as Siphonalia cassidariaeformis (Reeve, 1846) (unaccepted > incorrect grammatical agreement of specific epithet)
29. Species Siphonalia clarkei Tenison Woods, 1876 accepted as Tasmeuthria clarkei (Tenison Woods, 1876) (original combination)
30. Species Siphonalia colus A. Adams, 1863 accepted as Siphonalia modificata (Reeve, 1846) (junior synonym)
31. Species Siphonalia corrugata A. Adams, 1863 accepted as Siphonalia cassidariaeformis (Reeve, 1846) (junior synonym)
32. Species Siphonalia dilatata (Quoy & Gaimard, 1833) accepted as Penion sulcatus (Lamarck, 1816) (unaccepted > junior subjective synonym)
33. Species Siphonalia filosa A. Adams, 1863 accepted as Siphonalia spadicea (Reeve, 1847) (junior synonym)
34. Species Siphonalia fuscolineata (Pease, 1860) accepted as Siphonalia spadicea (Reeve, 1847)
35. Species Siphonalia grisea A. Adams, 1863 accepted as Siphonalia cassidariaeformis (Reeve, 1846) (junior synonym)
36. Species Siphonalia hyperodon Pilsbry, 1895 accepted as Siphonalia mikado Melvill, 1888
37. Species Siphonalia kelletti [sic] accepted as Kelletia kelletii (Forbes, 1852) (unaccepted > superseded combination)
38. Species Siphonalia laddi MacNeil, 1961 accepted as Manaria kuroharai Azuma, 1960
39. Species Siphonalia longirostris Dunker, 1882 accepted as Siphonalia fusoides (Reeve, 1846)
40. Species Siphonalia lubrica Dall, 1918 accepted as Siphonofusus lubricus (Dall, 1918) (original combination)
41. Species Siphonalia maxima Tryon, 1881 accepted as Penion maximus (Tryon, 1881) (superseded combination)
42. Species Siphonalia modificatum [sic] accepted as Siphonalia modificata (Reeve, 1846) (incorrect gender ending)
43. Species Siphonalia nodosa (Martyn, 1784) accepted as Austrofusus glans (Röding, 1798) (synonym)
44. Species Siphonalia oligostira Tate, 1891 accepted as Penion mandarinus (Duclos, 1832) (junior subjective synonym)
45. Species Siphonalia ornata A. Adams, 1863 accepted as Siphonalia cassidariaeformis (Reeve, 1846) (junior synonym)
46. Species Siphonalia pallida (Broderip & G. B. Sowerby I, 1829) accepted as Solenosteira pallida (Broderip & G. B. Sowerby I, 1829)
47. Species Siphonalia pfeifferi [sic] accepted as Siphonalia pfefferi G. B. Sowerby III, 1900 (misspelling)
48. Species Siphonalia pseudobuccinum Melvill, 1888 accepted as Siphonalia modificata (Reeve, 1846) (junior synonym)
49. Species Siphonalia semiplicata Pilsbry, 1896 accepted as Siphonalia fusoides (Reeve, 1846)
50. Species Siphonalia signa (Reeve, 1846) accepted as Siphonalia signum (Reeve, 1846) (signum is a noun in apposition [meaning flag or banner] and does not agree in gender with the genus it is combined with)
51. Species Siphonalia stearnsii Pilsbry, 1894 accepted as Siphonalia modificata (Reeve, 1846) (junior synonym)
52. Species Siphonalia subdilatata Yen, 1936 accepted as Neptunea subdilatata (Yen, 1936) (original combination)
53. Species Siphonalia trochula (Reeve, 1846) accepted as Siphonalia trochulus (Reeve, 1846) (wrong gender agreement of specific epithet; trochulus is a noun in apposition)
54. Species Siphonalia turrita Tenison Woods, 1876 accepted as Tasmeuthria clarkei (Tenison Woods, 1876) (unaccepted > junior subjective synonym)
55. Subgenus Siphonalia (Siphonalia) A. Adams, 1863 represented as Siphonalia A. Adams, 1863
56. Species Siphonalia commoda A. Adams, 1863 (uncertain > taxon inquirendum)
57. Species Siphonalia conspersa A. Adams, 1863 (uncertain > taxon inquirendum)
58. Species Siphonalia ligata A. Adams, 1863 (uncertain, use in recent literature not established by editor)
59. Species Siphonalia munda A. Adams, 1863 (uncertain > unassessed, use in recent literature not established by editor)
60. Species Siphonalia nodulosa A. Adams, 1863 (uncertain > unassessed)
61. Species Siphonalia pyramis A. Adams, 1863 (uncertain > unassessed, use in recent literature not established by editor)

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