1. Species Borsonia balteata Tate, 1898 †
2. Species Borsonia brasiliana Tippett, 1983
3. Species Borsonia ceroplasta (R. B. Watson, 1881)
4. Species Borsonia clifdenensis H. J. Finlay, 1930 †
5. Species Borsonia crassiaxialis P. A. Maxwell, 1992 †
6. Species Borsonia eocenica Long, 1981 †
7. Species Borsonia epigona E. von Martens, 1901
8. Species Borsonia germeraadi K. Martin, 1933 †
9. Species Borsonia hirondelleae (Dautzenberg, 1891)
10. Species Borsonia indica (Tesch, 1915) †
11. Species Borsonia jaffa Cotton, 1947
12. Species Borsonia jaya Sysoev, 1997
13. Species Borsonia meridionalis Lozouet, 2017 †
14. Species Borsonia mitromorphoides Suter, 1917 †
15. Species Borsonia nipponensis (Okutani & Iwahori, 1992)
16. Species Borsonia ochracea Thiele, 1925
17. Species Borsonia pelaezae Vera-Peláez, 2022 †
18. Species Borsonia plioalboranensis Vera-Peláez, 2002 †
19. Species Borsonia prima Bellardi, 1839 †
20. Species Borsonia rembangensis Pannekoek, 1936 †
21. Species Borsonia rotundata K. Martin, 1935 †
22. Species Borsonia saccoi Dall, 1908
23. Species Borsonia shimajiriensis MacNeil, 1961 †
24. Species Borsonia silicea (R. B. Watson, 1881)
25. Species Borsonia smithi Schepman, 1913
26. Species Borsonia symbiophora Sysoev, 1996
27. Species Borsonia symbiotes (Wood-Mason & Alcock, 1891)
28. Species Borsonia syngenes (R. B. Watson, 1881)
29. Species Borsonia tatei A. W. B. Powell, 1944 †
30. Species Borsonia timorensis (Schepman, 1913)
31. Species Borsonia torquayensis A. W. B. Powell, 1944 †
32. Species Borsonia zelandica (P. Marshall, 1919) †
33. Subgenus Borsonia (Boettgeria) Peyrot, 1931 † accepted as Boettgeriola Wenz, 1943 † (Invalid: junior homonym of Boettgeria Heynemann, 1863; Boettgeriola is a replacement name)
    1. Species Borsonia (Boettgeria) degrangei Peyrot, 1931 † accepted as Orthosurcula striatulata degrangei (Peyrot, 1931) † (basionym)
    2. Species Borsonia (Boettgeria) gallica Peyrot, 1931 † accepted as Boettgeriola gallica (Peyrot, 1931) † (basionym)
34. Subgenus Borsonia (Borsonella) Dall, 1908 accepted as Borsonella Dall, 1908
    1. Species Borsonia (Borsonella) agassizii Dall, 1908 accepted as Borsonella agassizii (Dall, 1908) (unaccepted > superseded combination)
    2. Species Borsonia (Borsonella) coronadoi Dall, 1908 accepted as Borsonella coronadoi (Dall, 1908)
    3. Species Borsonia (Borsonella) diegensis Dall, 1908 accepted as Borsonella diegensis (Dall, 1908) (unaccepted > superseded combination)
    4. Species Borsonia (Borsonella) saccoi Dall, 1908 accepted as Borsonia saccoi Dall, 1908 (unaccepted > superseded combination)
35. Subgenus Borsonia (Borsonia) Bellardi, 1839 accepted as Borsonia Bellardi, 1839
    1. Species Borsonia (Borsonia) chavani Glibert, 1973 † accepted as Cordieria briarti (Cossmann, 1899) † (invalid: junior homonym of Borsonia chavani Villatte, 1962)
    2. Species Borsonia (Borsonia) mediterranea Vera-Peláez, 2002 † accepted as Spirotropis mediterranea (Vera-Peláez, 2002) † (unaccepted > superseded combination)
    3. Species Borsonia (Borsonia) plioalboranensis Vera-Peláez, 2002 † accepted as Borsonia plioalboranensis Vera-Peláez, 2002 †
36. Subgenus Borsonia (Cordieria) Rouault, 1848 † accepted as Cordieria Rouault, 1848 (unaccepted > superseded rank)
    1. Species Borsonia (Cordieria) acutata Deshayes, 1865 † accepted as Cordieria acutata (Deshayes, 1865) † (unaccepted > superseded combination)
    2. Species Borsonia (Cordieria) angusta Deshayes, 1865 † accepted as Cordieria angusta (Deshayes, 1865) † (unaccepted > superseded combination)
    3. Species Borsonia (Cordieria) baccata Cossmann & Pissarro, 1900 † accepted as Cordieria baccata (Cossmann & Pissarro, 1900) † (unaccepted > superseded combination)
    4. Species Borsonia (Cordieria) bellardii Deshayes, 1865 † accepted as Cordieria bellardii (Deshayes, 1865) † (unaccepted > superseded combination)
    5. Species Borsonia (Cordieria) calvimontana Deshayes, 1865 † accepted as Cordieria calvimontana (Deshayes, 1865) † (unaccepted > superseded combination)
    6. Species Borsonia (Cordieria) cossmanni K. Martin, 1914 † accepted as Cordieria cossmanni (K. Martin, 1914) † accepted as Scobinella cossmanni (K. Martin, 1914) †
    7. Species Borsonia (Cordieria) edwardsi Deshayes, 1865 † accepted as Cordieria edwardsi (Deshayes, 1865) † (unaccepted > superseded combination)
    8. Species Borsonia (Cordieria) incerta Deshayes, 1865 † accepted as Cordieria incerta (Deshayes, 1865) † (unaccepted > superseded combination)
    9. Species Borsonia (Cordieria) marginata Deshayes, 1865 † accepted as Cordieria marginata (Deshayes, 1865) † (unaccepted > superseded combination)
    10. Species Borsonia (Cordieria) minor Deshayes, 1865 † accepted as Cordieria minor (Deshayes, 1865) † (unaccepted > superseded combination)
    11. Species Borsonia (Cordieria) mitromorphoides Suter, 1917 † accepted as Borsonia mitromorphoides Suter, 1917 † (superseded combination)
    12. Species Borsonia (Cordieria) obesula Deshayes, 1865 † accepted as Cordieria obesula (Deshayes, 1865) † (unaccepted > superseded combination)
    13. Species Borsonia (Cordieria) ovalis P. Marshall, 1918 † accepted as Bonellitia ovalis (P. Marshall, 1918) † (superseded combination)
    14. Species Borsonia (Cordieria) turbinelloides Deshayes, 1865 † accepted as Cordieria turbinelloides (Deshayes, 1865) † (unaccepted > superseded combination)
    15. Species Borsonia (Cordieria) volzi K. Martin, 1914 † accepted as Cordieria volzi (K. Martin, 1914) † accepted as Glyptotoma volzi (K. Martin, 1914) †
    16. Species Borsonia (Cordieria) biconica Glibert, 1973 † (uncertain > unassessed, potential junior secondary homonym of Cordieria biconica (Whitfield, 1865))
    17. Species Borsonia (Cordieria) marceti Villalta Comella, 1956 † (uncertain > unassessed)
    18. Species Borsonia (Cordieria) microgranulosa Villalta Comella, 1956 † (uncertain > unassessed)
37. Subgenus Borsonia (Mitromorpha) P. P. Carpenter, 1865 accepted as Mitromorpha P. P. Carpenter, 1865
    1. Species Borsonia (Mitromorpha) brachyspira Suter, 1917 † accepted as Mitromorpha brachyspira (Suter, 1917) † (superseded combination)
38. Subgenus Borsonia (Paraborsonia) Pilsbry, 1922 † accepted as Paraborsonia Pilsbry, 1922 (original rank)
    1. Species Borsonia (Paraborsonia) brassoensis Mansfield, 1925 † represented as Paraborsonia brassoensis (Mansfield, 1925) †
    2. Species Borsonia (Paraborsonia) varicosa (G. B. Sowerby I, 1850) † represented as Paraborsonia varicosa (G. B. Sowerby I, 1850) †
39. Species Borsonia acutata Deshayes, 1865 † accepted as Cordieria acutata (Deshayes, 1865) † (unaccepted > superseded combination)
40. Species Borsonia agassizii Dall, 1908 accepted as Borsonella agassizii (Dall, 1908) (superseded combination)
41. Species Borsonia angusta Deshayes, 1865 † accepted as Cordieria angusta (Deshayes, 1865) † (unaccepted > superseded combination)
42. Species Borsonia bellardii Briart & Cornet, 1877 † accepted as Cordieria briarti (Cossmann, 1899) † (invalid: junior homonym of Borsonia bellardii Deshayes, 1865; B. briarti is a replacement name)
43. Species Borsonia bellardii Deshayes, 1865 † accepted as Cordieria bellardii (Deshayes, 1865) † (unaccepted > superseded combination)
44. Species Borsonia bifasciata Pease, 1860 accepted as Pseudodaphnella bifasciata (Pease, 1860) (original combination)
45. Species Borsonia binodosa Koenen, 1885 † accepted as Cordieria binodosa (Koenen, 1885) † (unaccepted > superseded combination)
46. Species Borsonia brachyspira Suter, 1917 † accepted as Mitromorpha brachyspira (Suter, 1917) † (superseded combination)
47. Species Borsonia brassoensis Mansfield, 1925 † accepted as Paraborsonia brassoensis (Mansfield, 1925) † (unaccepted > superseded combination)
48. Species Borsonia briarti Cossmann, 1899 † accepted as Cordieria briarti (Cossmann, 1899) † (original combination)
49. Species Borsonia calvimontana Deshayes, 1865 † accepted as Cordieria calvimontana (Deshayes, 1865) † (unaccepted > superseded combination)
50. Species Borsonia chevallieri Cossmann, 1889 † accepted as Cordieria chevallieri (Cossmann, 1889) † (unaccepted > superseded combination)
51. Species Borsonia coronadoi Dall, 1908 accepted as Borsonella coronadoi (Dall, 1908) (superseded combination)
52. Species Borsonia crassicostata Pease, 1860 accepted as Lienardia crassicostata (Pease, 1860) (unaccepted > superseded combination)
53. Species Borsonia cresnei de Raincourt, 1884 † accepted as Cordieria cresnei (de Raincourt, 1884) † (unaccepted > superseded combination)
54. Species Borsonia diegensis Dall, 1908 accepted as Borsonella diegensis (Dall, 1908) (unaccepted > superseded combination)
55. Species Borsonia edwardsi Deshayes, 1865 † accepted as Cordieria edwardsi (Deshayes, 1865) † (unaccepted > superseded combination)
56. Species Borsonia gallica Peyrot, 1931 † accepted as Boettgeriola gallica (Peyrot, 1931) † (original combination)
57. Species Borsonia gliberti Le Renard, 1994 † accepted as Cordieria gliberti (Le Renard, 1994) † (unaccepted > superseded combination)
58. Species Borsonia gracilis F. Sandberger, 1862 † accepted as Cordieria gracilis (F. Sandberger, 1862) † (unaccepted > superseded combination)
59. Species Borsonia granifera H. Woodward, 1879 † accepted as Bathytoma (Micantapex) herklotsi (K. Martin, 1879) † accepted as Bathytoma herklotsi (K. Martin, 1879) †
60. Species Borsonia incerta Deshayes, 1865 † accepted as Cordieria incerta (Deshayes, 1865) † (unaccepted > superseded combination)
61. Species Borsonia inculta Moody, 1916 † accepted as Pseudotaranis strongi (Arnold, 1903)
62. Species Borsonia lutea Pease, 1860 accepted as Kermia lutea (Pease, 1860) (original combination)
63. Species Borsonia marci Koperberg, 1931 † accepted as Calliotectum marci (Koperberg, 1931) †
64. Species Borsonia marginata Deshayes, 1865 † accepted as Cordieria marginata (Deshayes, 1865) † (unaccepted > superseded combination)
65. Species Borsonia mediterranea Vera-Peláez, 2002 † accepted as Spirotropis mediterranea (Vera-Peláez, 2002) † (unaccepted > superseded combination)
66. Species Borsonia minor Deshayes, 1865 † accepted as Cordieria minor (Deshayes, 1865) † (unaccepted > superseded combination)
67. Species Borsonia mitraeformis Deshayes, 1865 † accepted as Cordieria mitraeformis (Deshayes, 1865) † (original combination)
68. Species Borsonia nakayasui (Habe, 1976) accepted as Borsonia symbiotes (Wood-Mason & Alcock, 1891)
69. Species Borsonia nebulosa Pease, 1860 accepted as Pseudodaphnella nebulosa (Pease, 1860) (original combination)
70. Species Borsonia obesula Deshayes, 1865 † accepted as Cordieria obesula (Deshayes, 1865) † (unaccepted > superseded combination)
71. Species Borsonia otwayensis Tate, 1898 † accepted as Cordieria otwayensis (Tate, 1898) † (unaccepted > superseded combination)
72. Species Borsonia ovalis P. Marshall, 1918 † accepted as Bonellitia ovalis (P. Marshall, 1918) † (superseded combination)
73. Species Borsonia polycesta Tate, 1898 † accepted as Cordieria protensa (Tate, 1898) † accepted as Cordieria otwayensis (Tate, 1898) † (unaccepted > junior subjective synonym, synonym)
74. Species Borsonia protensa Tate, 1898 † accepted as Cordieria otwayensis (Tate, 1898) † (unaccepted > junior subjective synonym)
75. Species Borsonia rouaultii Dall, 1889 accepted as Cordieria rouaultii (Dall, 1889) (original combination)
76. Species Borsonia turbinelloides Deshayes, 1865 † accepted as Cordieria turbinelloides (Deshayes, 1865) † (unaccepted > superseded combination)
77. Species Borsonia varicosa (G. B. Sowerby I, 1850) † accepted as Paraborsonia varicosa (G. B. Sowerby I, 1850) † (unaccepted > superseded combination)
78. Species Borsonia armata O. Boettger, 1895 (uncertain > unassessed)
79. Species Borsonia burdigalina Benoist, 1874 † (uncertain > unassessed)
80. Species Borsonia chavani Villatte, 1962 † (uncertain > taxon inquirendum)
81. Species Borsonia patagonica Ortmann, 1900 † (uncertain > unassessed)
82. Species Borsonia recurvirostris Gabb, 1873 † (uncertain > unassessed)

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