1. Species Potamocarcinus armatus H. Milne Edwards, 1853
2. Species Potamocarcinus chajulensis Álvarez & Villalobos, 1998
3. Species Potamocarcinus colombiensis von Prahl & Ramos, 1987
4. Species Potamocarcinus hartmanni Pretzmann, 1975
5. Species Potamocarcinus lobulatus Campos & Lemaitre, 2002
6. Species Potamocarcinus magnus (Rathbun, 1896)
7. Species Potamocarcinus moritschi Pretzmann, 1965
8. Species Potamocarcinus nicaraguensis Rathbun, 1893
9. Species Potamocarcinus pinzoni Campos, 2003
10. Species Potamocarcinus richmondi (Rathbun, 1893)
11. Species Potamocarcinus roatensis Rodríguez & López, 2003
12. Species Potamocarcinus tapirrhynchus Magalhães & Ng, 2019
13. Subgenus Potamocarcinus (Anaphrymos) Smalley, 1965 accepted as Pseudothelphusa (Anaphyrmos) Smalley, 1965 accepted as Raddaus Pretzmann, 1965 (unaccepted > misspelling - incorrect subsequent spelling)
    1. Species Potamocarcinus (Anaphrymos) bocourti (A. Milne-Edwards, 1866) accepted as Raddaus bocourti (A. Milne-Edwards, 1866) (unaccepted > superseded combination)
14. Subgenus Potamocarcinus (Elsalvadoria) Bott, 1967 accepted as Elsalvadoria Bott, 1967 (status change)
15. Subgenus Potamocarcinus (Hypolobocera) Ortmann, 1897 accepted as Hypolobocera Ortmann, 1897 (superceded status)
    1. Species Potamocarcinus (Hypolobocera) aequatorialis (Ortmann, 1897) accepted as Hypolobocera aequatorialis (Ortmann, 1897) (unaccepted > superseded combination)
    2. Species Potamocarcinus (Hypolobocera) macropus (H. Milne Edwards, 1853) accepted as Neostrengeria macropa (H. Milne Edwards, 1853) (unaccepted > superseded combination)
16. Subgenus Potamocarcinus (Kingsleya) Ortmann, 1897 accepted as Kingsleya Ortmann, 1897 (superceded status)
    1. Species Potamocarcinus (Kingsleya) fossor (Rathbun, 1898) accepted as Neopseudothelphusa fossor (Rathbun, 1898) (unaccepted > superseded combination)
    2. Species Potamocarcinus (Kingsleya) latifrons (Randall, 1840) accepted as Kingsleya latifrons (Randall, 1840) (unaccepted > superseded combination)
    3. Species Potamocarcinus (Kingsleya) reflexifrons (Ortmann, 1897) accepted as Fredius reflexifrons (Ortmann, 1897) (unaccepted > superseded combination)
    4. Species Potamocarcinus (Kingsleya) venezuelensis (Rathbun, 1905) accepted as Orthothelphusa venezuelensis (Rathbun, 1905) (unaccepted > superseded combination)
17. Subgenus Potamocarcinus (Megathelphusa) Smalley, 1964 accepted as Potamocarcinus H. Milne Edwards, 1853 (unaccepted > junior subjective synonym)
    1. Species Potamocarcinus (Megathelphusa) magnus (Rathbun, 1896) accepted as Potamocarcinus magnus (Rathbun, 1896) (unaccepted > superseded combination)
    2. Species Potamocarcinus (Megathelphusa) nicaraguensis Rathbun, 1893 accepted as Potamocarcinus nicaraguensis Rathbun, 1893 (unaccepted > superseded combination)
    3. Species Potamocarcinus (Megathelphusa) richmondi (Rathbun, 1893) accepted as Potamocarcinus richmondi (Rathbun, 1893) (unaccepted > superseded combination)
18. Subgenus Potamocarcinus (Potamocarcinus) H. Milne Edwards, 1853 accepted as Potamocarcinus H. Milne Edwards, 1853 (superceded status)
    1. Species Potamocarcinus (Potamocarcinus) chacei Pretzmann, 1967 accepted as Eidocamptophallus chacei (Pretzmann, 1967) (unaccepted > superseded combination)
    2. Species Potamocarcinus (Potamocarcinus) garthi Pretzmann, 1971 accepted as Spirocarcinus garthi (Pretzmann, 1971) (unaccepted > superseded combination)
    3. Species Potamocarcinus (Potamocarcinus) hartmanni Pretzmann, 1975 accepted as Potamocarcinus hartmanni Pretzmann, 1975 (unaccepted > superseded combination)
    4. Species Potamocarcinus (Potamocarcinus) moritschi Pretzmann, 1965 accepted as Potamocarcinus moritschi Pretzmann, 1965 (unaccepted > superseded combination)
    5. Species Potamocarcinus (Potamocarcinus) nicaraguensis Rathbun, 1893 accepted as Potamocarcinus nicaraguensis Rathbun, 1893 (unaccepted > superseded combination)
19. Subgenus Potamocarcinus (Raddaus) Pretzmann, 1965 accepted as Raddaus Pretzmann, 1965 (status change)
    1. Species Potamocarcinus (Raddaus) parazilchi Bott, 1967 accepted as Raddaus bocourti (A. Milne-Edwards, 1866) (unaccepted > superseded combination)
20. Subgenus Potamocarcinus (Spirocarcinus) Pretzmann, 1972 accepted as Spirocarcinus Pretzmann, 1972 (status change)
21. Subgenus Potamocarcinus (Zilchia) Pretzmann, 1968 accepted as Potamocarcinus H. Milne Edwards, 1853 (unaccepted > junior subjective synonym)
    1. Species Potamocarcinus (Zilchia) poglayeneuwalli Pretzmann, 1978 accepted as Zilchia poglayeneuwalli (Pretzmann, 1978) (unaccepted > superseded combination)
    2. Species Potamocarcinus (Zilchia) zilchi (Bott, 1956) accepted as Zilchia zilchi (Bott, 1956) (unaccepted > superseded combination)
22. Species Potamocarcinus aequatorialis Ortmann, 1897 accepted as Hypolobocera aequatorialis (Ortmann, 1897) (unaccepted > superseded combination)
23. Species Potamocarcinus aspoeckorum (Pretzmann, 1968) accepted as Zilchia aspoeckorum (Pretzmann, 1968) (unaccepted > superseded combination)
24. Species Potamocarcinus chaffanjoni Rathbun, 1905 accepted as Fredius chaffanjoni (Rathbun, 1905)
25. Species Potamocarcinus darienensis Magalhães, Campos & Türkay, 2013 accepted as Emberacarcinus darienensis (Magalhães, Campos & Turkay, 2013) (unaccepted > superseded combination)
26. Species Potamocarcinus dunooensis Rathbun, 1919 accepted as Fredius reflexifrons (Ortmann, 1897) (unaccepted > junior subjective synonym)
27. Species Potamocarcinus falcatus (Rodríguez & Hobbs, 1989) accepted as Zilchia falcata Rodríguez & Hobbs, 1989 (unaccepted > superseded combination)
28. Species Potamocarcinus guatemalensis Rathbun, 1905 accepted as Potamocarcinus magnus (Rathbun, 1896) (unaccepted > junior subjective synonym)
29. Species Potamocarcinus leptomelus Rodríguez & Hobbs, 1989 accepted as Villalobosius leptomelus (Rodríguez & Hobbs, 1989) (unaccepted > superseded combination)
30. Species Potamocarcinus poglayeneuwalli Pretzmann, 1978 accepted as Zilchia poglayeneuwalli (Pretzmann, 1978) (unaccepted > superseded combination)
31. Species Potamocarcinus principessae Doflein, 1900 accepted as Neostrengeria macropa (H. Milne Edwards, 1853) (unaccepted > junior subjective synonym)
32. Species Potamocarcinus reflexifrons Ortmann, 1897 accepted as Fredius reflexifrons (Ortmann, 1897) (unaccepted > superseded combination)
33. Species Potamocarcinus vulcanensis Rodríguez, 2001 accepted as Zilchia vulcanensis (Rodríguez, 2001) (unaccepted > superseded combination)
34. Species Potamocarcinus zilchi (Bott, 1956) accepted as Zilchia zilchi (Bott, 1956) (unaccepted > superseded combination)
35. Species Potamocarcinus denticulatus Stimpson, 1861 (uncertain > nomen dubium)

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