1. Species Somatogyrus alcoviensis Krieger, 1972
2. Species Somatogyrus aldrichi B. Walker, 1906
3. Species Somatogyrus amnicoloides B. Walker, 1915
4. Species Somatogyrus aureus Tryon, 1865
5. Species Somatogyrus biangulatus B. Walker, 1906
6. Species Somatogyrus constrictus B. Walker, 1904
7. Species Somatogyrus coosaensis B. Walker, 1904
8. Species Somatogyrus crassilabris B. Walker, 1915
9. Species Somatogyrus crassus B. Walker, 1904
10. Species Somatogyrus currierianus (I. Lea, 1863)
11. Species Somatogyrus decipiens B. Walker, 1909
12. Species Somatogyrus depressus (Tryon, 1862)
13. Species Somatogyrus excavatus B. Walker, 1906
14. Species Somatogyrus georgianus B. Walker, 1904
15. Species Somatogyrus hendersoni B. Walker, 1909
16. Species Somatogyrus hinkleyi B. Walker, 1904
17. Species Somatogyrus humerosus B. Walker, 1906
18. Species Somatogyrus integer (Say, 1829)
19. Species Somatogyrus nanus B. Walker, 1904
20. Species Somatogyrus obtusus B. Walker, 1904
21. Species Somatogyrus parvulus Tryon, 1865
22. Species Somatogyrus pennsylvanicus B. Walker, 1904
23. Species Somatogyrus pilsbryanus B. Walker, 1904
24. Species Somatogyrus pumilus (Conrad, 1834)
25. Species Somatogyrus pygmaeus B. Walker, 1909
26. Species Somatogyrus quadratus B. Walker, 1906
27. Species Somatogyrus rheophilas F. G. Thompson, 1984
28. Species Somatogyrus rheophilus F. G. Thompson, 1984
29. Species Somatogyrus rosewateri M. E. Gordon, 1986
30. Species Somatogyrus sargenti Pilsbry, 1895
31. Species Somatogyrus strengi Pilsbry & B. Walker, 1906
32. Species Somatogyrus substriatus B. Walker, 1906
33. Species Somatogyrus tenax F. G. Thompson, 1969
34. Species Somatogyrus tennesseensis B. Walker, 1906
35. Species Somatogyrus trothis W. Doherty, 1878
36. Species Somatogyrus tryoni Pilsbry & F. C. Baker, 1927
37. Species Somatogyrus virginicus B. Walker, 1904
38. Species Somatogyrus walkerianus Aldrich, 1905
39. Species Somatogyrus wheeleri B. Walker, 1915
40. Subgenus Somatogyrus (Walkerilla) Thiele, 1928 accepted as Somatogyrus Gill, 1863 (a junior synonym)
    1. Species Somatogyrus (Walkerilla) tenax F. G. Thompson, 1969 accepted as Somatogyrus tenax F. G. Thompson, 1969 (original combination)
41. Species Somatogyrus clenchi C. Goodrich & Van der Schalie, 1937 accepted as Aroapyrgus clenchi (C. Goodrich & Van der Schalie, 1937) (original combination)
42. Species Somatogyrus crassilabris Hinkley, 1915 accepted as Somatogyrus crassilabris B. Walker, 1915
43. Species Somatogyrus mexicanus Pilsbry, 1910 accepted as Aroapyrgus mexicanus (Pilsbry, 1910) (original combination)
44. Species Somatogyrus subglobosus (Say, 1825) accepted as Birgella subglobosa (Say, 1825) (unaccepted combination)
45. Species Somatogyrus umbilicatus B. Walker, 1904 accepted as Clappia umbilicata (B. Walker, 1904) (original combination)

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