1. Species Struthiolaria arthritica Bartrum & A. W. B. Powell, 1928 †
2. Species Struthiolaria calcar F. W. Hutton, 1886 †
3. Species Struthiolaria callosa Marwick, 1924 †
4. Species Struthiolaria cincta F. W. Hutton, 1873 †
5. Species Struthiolaria cingulata Zittel, 1865 †
6. Species Struthiolaria errata Marwick, 1924 †
7. Species Struthiolaria firthi Marwick, 1948 †
8. Species Struthiolaria frazeri F. W. Hutton, 1885 †
9. Species Struthiolaria illepida Bartrum & A. W. B. Powell, 1928 †
10. Species Struthiolaria incrassata A. W. B. Powell, 1931 †
11. Species Struthiolaria lawsi A. W. B. Powell & Bartrum, 1929 †
12. Species Struthiolaria nexa Marwick, 1931 †
13. Species Struthiolaria obesa F. W. Hutton, 1885 †
14. Species Struthiolaria otaioica Laws, 1935 †
15. Species Struthiolaria papulosa (Martyn, 1784)
16. Species Struthiolaria praenuntia Marwick, 1926 †
17. Species Struthiolaria prior Finlay, 1926 †
18. Species Struthiolaria spinifera Marwick, 1924 †
19. Species Struthiolaria spinosa F. W. Hutton, 1885 †
20. Species Struthiolaria tuberculata F. W. Hutton, 1873 †
21. Subgenus Struthiolaria (Pelicaria) Gray, 1857 accepted as Pelicaria Gray, 1857
    1. Species Struthiolaria (Pelicaria) clarki Neef, 1970 † accepted as Pelicaria clarki (Neef, 1970) †
    2. Species Struthiolaria (Pelicaria) incrassata A. W. B. Powell, 1931 † accepted as Struthiolaria incrassata A. W. B. Powell, 1931 † (superseded combination)
    3. Species Struthiolaria (Pelicaria) lacera Marwick, 1931 accepted as Pelicaria lacera (Marwick, 1931) †
    4. Species Struthiolaria (Pelicaria) marima Neef, 1970 † accepted as Pelicaria marima (Neef, 1970) †
    5. Species Struthiolaria (Pelicaria) vermis (Martyn, 1784) accepted as Pelicaria vermis (Martyn, 1784) (superseded combination)
    6. Species Struthiolaria (Pelicaria) wellmani Neef, 1970 † accepted as Pelicaria acuminata (Marwick, 1924) † accepted as Pelicaria vermis (Martyn, 1784) (junior subjective synonym)
22. Species Struthiolaria acuminata Marwick, 1924 † accepted as Pelicaria vermis (Martyn, 1784) (junior subjective synonym)
23. Species Struthiolaria ameghinoi Ihering, 1897 † accepted as Perissodonta ameghinoi (Ihering, 1897) † (unaccepted > superseded combination)
24. Species Struthiolaria armata Marwick, 1924 † accepted as Struthiolaria (Callusaria) callosa Marwick, 1924 † represented as Struthiolaria callosa Marwick, 1924 † (junior subjective synonym)
25. Species Struthiolaria canaliculata Zittel, 1865 † accepted as Pelicaria canaliculata (Zittel, 1865) † (superseded combination)
26. Species Struthiolaria chilensis R. A. Philippi, 1887 † accepted as Perissodonta chilensis (R. A. Philippi, 1887) † (unaccepted > superseded combination)
27. Species Struthiolaria concinna Suter, 1917 † accepted as Monalaria concinna (Suter, 1917) † (superseded combination)
28. Species Struthiolaria convexa Marwick, 1924 † accepted as Pelicaria vermis (Martyn, 1784) (junior subjective synonym)
29. Species Struthiolaria crenulata Lamarck, 1822 accepted as Pelicaria vermis (Martyn, 1784) (junior objective synonym)
30. Species Struthiolaria dolorosa L. C. King, 1934 † accepted as Struthiolaria cingulata Zittel, 1865 † (junior subjective synonym)
31. Species Struthiolaria fortis Marwick, 1924 † accepted as Struthiolaria (Callusaria) callosa Marwick, 1924 † represented as Struthiolaria callosa Marwick, 1924 † (junior subjective synonym)
32. Species Struthiolaria fossa Marwick, 1924 † accepted as Pelicaria vermis (Martyn, 1784) (junior subjective synonym)
33. Species Struthiolaria gigas G. B. Sowerby II, 1842 accepted as Struthiolaria papulosa (Martyn, 1784) (junior subjective synonym)
34. Species Struthiolaria guttifera Grzybowski, 1899 † accepted as Nicema guttifera (Grzybowski, 1899) † (unaccepted > superseded combination)
35. Species Struthiolaria inermis G. B. Sowerby I, 1821 accepted as Pelicaria vermis (Martyn, 1784) (junior objective synonym)
36. Species Struthiolaria lacera Marwick, 1931 † accepted as Pelicaria lacera (Marwick, 1931) †
37. Species Struthiolaria lirata Tate, 1889 † accepted as Tylospira lirata (Tate, 1889) †
38. Species Struthiolaria media Marwick, 1924 † accepted as Pelicaria vermis (Martyn, 1784) (junior subjective synonym)
39. Species Struthiolaria minor P. Marshall, 1917 † accepted as Perissodonta minor (P. Marshall, 1917) † (superseded combination)
40. Species Struthiolaria mirabilis E. A. Smith, 1875 accepted as Perissodonta mirabilis (E. A. Smith, 1875) (original combination)
41. Species Struthiolaria nana Marwick, 1926 † accepted as Pelicaria nana (Marwick, 1926) † (superseded combination)
42. Species Struthiolaria nodosa Gray, 1835 accepted as Struthiolaria papulosa (Martyn, 1784) (misspelling of nodulosa Lamarck, 1816)
43. Species Struthiolaria nodulosa Lamarck, 1816 accepted as Struthiolaria papulosa (Martyn, 1784) (junior subjective synonym)
44. Species Struthiolaria ornata G. B. Sowerby I, 1846 † accepted as Perissodonta ornata (G. B. Sowerby I, 1846) † (unaccepted > superseded combination)
45. Species Struthiolaria papillaris J. E. Gray, 1857 accepted as Struthiolaria papulosa (Martyn, 1784) (unaccepted > junior subjective synonym)
46. Species Struthiolaria parva Suter, 1915 † accepted as Pelicaria parva (Suter, 1915) † (superseded combination)
47. Species Struthiolaria prima Defrance, 1827 † accepted as Popenoeum primum (Defrance, 1827) † (original combination)
48. Species Struthiolaria pseudovermis Bartrum & A. W. B. Powell, 1928 † accepted as Pelicaria pseudovermis (Bartrum & A. W. B. Powell, 1928) † (superseded combination)
49. Species Struthiolaria rugosa Marwick, 1924 † accepted as Pelicaria rugosa (Marwick, 1924) † (superseded combination)
50. Species Struthiolaria scutulata Gmelin, 1791 accepted as Tylospira scutulata (Gmelin, 1791)
51. Species Struthiolaria senex F. W. Hutton, 1873 † accepted as Galeodea senex (F. W. Hutton, 1873) † (superseded combination)
52. Species Struthiolaria subspinosa Marwick, 1924 † accepted as Struthiolaria (Struthiolaria) calcar F. W. Hutton, 1886 † represented as Struthiolaria calcar F. W. Hutton, 1886 † (junior subjective synonym)
53. Species Struthiolaria sulcata Jonas, 1839 accepted as Struthiolaria papulosa (Martyn, 1784) (junior subjective synonym)
54. Species Struthiolaria tasmani L. C. King, 1933 † accepted as Struthiolaria papulosa (Martyn, 1784) (junior subjective synonym)
55. Species Struthiolaria tricarinata R. P. Lesson, 1841 accepted as Pelicaria vermis (Martyn, 1784) (junior objective synonym)
56. Species Struthiolaria vermis (Martyn, 1784) accepted as Pelicaria vermis (Martyn, 1784) (superseded combination)
57. Species Struthiolaria zelandiae P. Marshall & Murdoch, 1920 † accepted as Pelicaria zelandiae (P. Marshall & Murdoch, 1920) † (superseded combination)
58. Subgenus Struthiolaria (Callusaria) Finlay, 1926 † represented as Struthiolaria Lamarck, 1816
    1. Species Struthiolaria (Callusaria) arthritica Bartrum & A. W. B. Powell, 1928 † represented as Struthiolaria arthritica Bartrum & A. W. B. Powell, 1928 †
    2. Species Struthiolaria (Callusaria) callosa Marwick, 1924 † represented as Struthiolaria callosa Marwick, 1924 †
    3. Species Struthiolaria (Callusaria) obesa F. W. Hutton, 1885 † represented as Struthiolaria obesa F. W. Hutton, 1885 †
    4. Species Struthiolaria (Callusaria) otaioica Laws, 1935 † represented as Struthiolaria otaioica Laws, 1935 †
    5. Species Struthiolaria (Callusaria) spinifera Marwick, 1924 † represented as Struthiolaria spinifera Marwick, 1924 †
    6. Species Struthiolaria (Callusaria) spinosa F. W. Hutton, 1885 † represented as Struthiolaria spinosa F. W. Hutton, 1885 †
    7. Species Struthiolaria (Callusaria) tuberculata F. W. Hutton, 1873 † represented as Struthiolaria tuberculata F. W. Hutton, 1873 †
59. Subgenus Struthiolaria (Struthiolaria) Lamarck, 1816 represented as Struthiolaria Lamarck, 1816
    1. Species Struthiolaria (Struthiolaria) calcar F. W. Hutton, 1886 † represented as Struthiolaria calcar F. W. Hutton, 1886 †
    2. Species Struthiolaria (Struthiolaria) cincta F. W. Hutton, 1873 † represented as Struthiolaria cincta F. W. Hutton, 1873 †
    3. Species Struthiolaria (Struthiolaria) cingulata Zittel, 1865 † represented as Struthiolaria cingulata Zittel, 1865 †
    4. Species Struthiolaria (Struthiolaria) dolorosa L. C. King, 1934 † represented as Struthiolaria dolorosa L. C. King, 1934 † accepted as Struthiolaria cingulata Zittel, 1865 †
    5. Species Struthiolaria (Struthiolaria) errata Marwick, 1924 † represented as Struthiolaria errata Marwick, 1924 †
    6. Species Struthiolaria (Struthiolaria) firthi Marwick, 1948 † represented as Struthiolaria firthi Marwick, 1948 †
    7. Species Struthiolaria (Struthiolaria) frazeri F. W. Hutton, 1885 † represented as Struthiolaria frazeri F. W. Hutton, 1885 †
    8. Species Struthiolaria (Struthiolaria) illepida Bartrum & A. W. B. Powell, 1928 † represented as Struthiolaria illepida Bartrum & A. W. B. Powell, 1928 †
    9. Species Struthiolaria (Struthiolaria) lawsi A. W. B. Powell & Bartrum, 1929 † represented as Struthiolaria lawsi A. W. B. Powell & Bartrum, 1929 †
    10. Species Struthiolaria (Struthiolaria) nexa Marwick, 1931 † represented as Struthiolaria nexa Marwick, 1931 †
    11. Species Struthiolaria (Struthiolaria) papulosa (Martyn, 1784) represented as Struthiolaria papulosa (Martyn, 1784)
    12. Species Struthiolaria (Struthiolaria) praenuntia Marwick, 1926 † represented as Struthiolaria praenuntia Marwick, 1926 †
    13. Species Struthiolaria (Struthiolaria) prior Finlay, 1926 † represented as Struthiolaria prior Finlay, 1926 †
60. Species Struthiolaria hatcheri Ortmann, 1899 † (uncertain > unassessed)
61. Species Struthiolaria oblita G. B. Sowerby I, 1825 (uncertain > taxon inquirendum, use in recent liteature currently undocumented)

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