1. Species Trochostoma abyssicola Verrill, 1885 (unaccepted > nomen nudum)
2. Species Trochostoma africanum Ludwig in Ludwig & Heding, 1935 accepted as Molpadia africana (Ludwig in Ludwig & Heding, 1935)
3. Species Trochostoma albicans Théel, 1886 accepted as Caudina albicans (Théel, 1886) accepted as Hedingia albicans (Théel, 1886) Deichmann, 1938 (synonym)
4. Species Trochostoma andamanense Walsh, 1891 accepted as Molpadia andamanensis (Walsh, 1891)
5. Species Trochostoma angulatum Hérouard, 1923 accepted as Molpadia angulata (Hérouard, 1923)
6. Species Trochostoma antarcticum Théel, 1886 accepted as Molpadia antarctica (Théel, 1886)
7. Species Trochostoma arctica of Danielssen & Koren, 1880 non (von Marenzeller, 1877) accepted as Molpadia borealis Sars M, 1859 (unaccepted > unavailable name, misidentification)
8. Species Trochostoma arcticum (Marenzeller, 1877) accepted as Molpadia arctica (Marenzeller von, 1877)
9. Species Trochostoma ayresii Verrill, 1885 (unaccepted > nomen nudum)
10. Species Trochostoma blakei Théel, 1886 accepted as Molpadia blakei (Théel, 1886) (synonym)
11. Species Trochostoma boreale (M. Sars, 1859) accepted as Molpadia borealis Sars M, 1859 (synonym)
12. Species Trochostoma concolor Koehler & Vaney, 1905 accepted as Molpadia concolor (Koehler & Vaney, 1905)
13. Species Trochostoma ecalcareum Koehler & Vaney, 1905 accepted as Molpadia ecalcarea (Koehler & Vaney, 1905)
14. Species Trochostoma elongatum Koehler & Vaney, 1905 accepted as Molpadia elongata (Koehler & Vaney, 1905)
15. Species Trochostoma fusiforme Augustin, 1908 accepted as Hedingia fusiforme (Augustin, 1908)
16. Species Trochostoma granulatum Ludwig, 1893 accepted as Molpadia granulata (Ludwig, 1893)
17. Species Trochostoma grossularia Hérouard, 1912 accepted as Molpadia blakei (Théel, 1886) (synonym)
18. Species Trochostoma intermedium Ludwig, 1893 accepted as Molpadia intermedia (Ludwig, 1893)
19. Species Trochostoma lenticulum Cherbonnier & Féral, 1981 accepted as Molpadia lenticula (Cherbonnier & Féral, 1981)
20. Species Trochostoma mediterraneum Bartolini Baldelli, 1914 accepted as Hedingia mediterranea (Bartolini Baldelli, 1914) Tortonese, 1965 (synonym)
21. Species Trochostoma oolitica (Pourtalès, 1851) accepted as Molpadia oolitica (Pourtalès, 1851)
22. Species Trochostoma orientale Savel'eva, 1933 accepted as Molpadia orientalis (Savel'eva, 1933)
23. Species Trochostoma parvacauda Cherbonnier, 1964 accepted as Molpadia parvacauda (Cherbonnier, 1964)
24. Species Trochostoma parvulum Cherbonnier & Féral, 1981 accepted as Molpadia parvulum (Cherbonnier & Féral, 1981)
25. Species Trochostoma pauperum Koehler & Vaney, 1905 accepted as Molpadia paupera (Koehler & Vaney, 1905)
26. Species Trochostoma scabrum Sluiter, 1901 accepted as Molpadia scabra (Sluiter, 1901)
27. Species Trochostoma simile Augustin, 1908 accepted as Caudina similis (Augustin, 1908)
28. Species Trochostoma thomsonii Danielssen & Koren, 1879 accepted as Molpadia thomsoni (Danielssen & Koren, 1879) accepted as Molpadia borealis Sars M, 1859 (synonym)
29. Species Trochostoma triforia Cherbonnier, 1964 accepted as Molpadia triforia (Cherbonnier, 1964)
30. Species Trochostoma turgidum (Verrill, 1879) accepted as Molpadia turgida Verrill, 1879 (synonym)
31. Species Trochostoma violaceum Théel, 1886 accepted as Molpadia musculus Risso, 1826 (synonym)

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