1. Species Tristoma adcoccineum Yamaguti, 1968
2. Species Tristoma adintegrum Yamaguti, 1968
3. Species Tristoma coccineum Cuvier, 1817
4. Species Tristoma integrum Diesing, 1850
5. Species Tristoma biparasitica Goto, 1894 accepted as Capsala biparasitica (Goto, 1894) Price, 1938 (Superseded combination)
6. Species Tristoma cornutum Verrill, 1875 accepted as Capsala cornuta (Verrill, 1875) Johnston, 1929 accepted as Capsaloides cornutus (Verrill, 1875) Price, 1938 (Superseded combination)
7. Species Tristoma foleaceum Goto, 1894 accepted as Capsala foliacea (Goto, 1894) Johnston, 1929 (Superseded combination)
8. Species Tristoma histiophori Bell, 1891 accepted as Capsala laevis (Verrill, 1875) Johnston, 1929 (Synonym )
9. Species Tristoma interruptum Monticelli, 1891 accepted as Capsala interrupta (Monticelli, 1891) Johnston, 1929 (Superseded combination)
10. Species Tristoma katsuwoni Ishii, 1936 accepted as Capsala katsuwoni (Ishii, 1936) Price, 1938 (Superseded combination)
11. Species Tristoma laeve Verrill, 1875 accepted as Capsala laevis (Verrill, 1875) Johnston, 1929 (Superseded combination)
12. Species Tristoma magronum Ishii, 1936 accepted as Capsala magronum (Ishii, 1936) Price, 1938 (Superseded combination)
13. Species Tristoma megacotyle Linstow, 1906 accepted as Capsala megacotyle (von Linstow, 1906) Johnston, 1929 (Superseded combination)
14. Species Tristoma nozawae Goto, 1894 accepted as Capsala nozawae (Goto, 1894) Price, 1938 (Superseded combination)
15. Species Tristoma onchidiocotyle Setti, 1899 accepted as Capsala onchidiocotyle (Setti, 1899) Johnston, 1929 (Superseded combination)
16. Species Tristoma ovale Goto, 1894 accepted as Capsala ovalis (Goto, 1894) Price, 1938 (Superseded combination)
17. Species Tristoma papillosum Diesing, 1836 accepted as Tristoma coccineum Cuvier, 1817 (unaccepted > junior subjective synonym)
18. Species Tristoma pelamydis Taschenberg, 1878 accepted as Capsala pelamydis (Taschenberg, 1878) Johnston, 1929 (Superseded combination)
19. Species Tristoma perugiai Setti, 1898 accepted as Capsaloides perugiai (Setti, 1898) Price, 1938 (Superseded combination)
20. Species Tristoma pini (van Beneden & Hesse, 1863) Taschenberg, 1878 accepted as Trochopus pini (Van Beneden & Hesse, 1863) Massa, 1903 (Superseded combination)
21. Species Tristoma poeyi Vigueras, 1935 accepted as Capsala poeyi (Vigueras, 1935) Price, 1938 (Superseded combination)
22. Species Tristoma rhombi (van Beneden & Hesse, 1863) accepted as Trochopus rhombi (van Beneden & Hesse, 1863) accepted as Megalocotyle rhombi (van Beneden & Hesse, 1863) Price, 1939 (Superseded combination)
23. Species Tristoma rotundum Goto, 1894 accepted as Tristoma integrum Diesing, 1850 (unaccepted > junior subjective synonym)
24. Species Tristoma sinuatum Goto, 1894 accepted as Capsala sinuata (Goto, 1894) Johnston, 1929 accepted as Capsaloides sinuatus (Goto, 1894) Price, 1938 (Superseded combination)
25. Species Tristoma squali Blanchard, 1847 accepted as Capsala squali (Blanchard, 1847) Johnston, 1929 (Superseded combination)
26. Species Tristoma sturionis (Abildgaard, 1794) Blanchard, 1847 accepted as Nitzschia sturionis (Abildgaard, 1794) Krøyer, 1852 (Superseded combination)
27. Species Tristoma tubiporum Diesing, 1835 accepted as Trochopus tubiporus (Diesing, 1835) Van Beneden & Hesse, 1864 (Superseded combination)

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