Potamocarcinus is a genus of crabs in the family Pseudothelphusidae. \n* Potamocarcinus armatus H. Milne-Edwards, 1853 \n* Potamocarcinus aspoekorum (Pretzmann, 1968) \n* Potamocarcinus chajulensis Alvarez & Villalobos, 1998 \n* Potamocarcinus colombiensis von Prahl & Ramos, 1987 \n* Potamocarcinus falcatus (Rodríguez & Hobbs, 1989) \n* Potamocarcinus hartmanni Pretzmann, 1975 \n* Potamocarcinus leptomelus Rodríguez & Hobbs, 1989 \n* Potamocarcinus lobulatus Campos & Lemaitre, 2002 \n* Potamocarcinus magnus (Rathbun, 1895) \n* Potamocarcinus nicaraguensis Rathbun, 1893 \n* Potamocarcinus pinzoni Campos, 2003 \n* Potamocarcinus poglayeneuwalli Pretzmann, 1978 \n* Potamocarcinus richmondi (Rathbun, 1893) \n* Potamocarcinus roatensis Rodríguez & López, 2003 \n* Potamocarcinus vulcanensis Rodríguez, 2001 \n*