Cynopotamus is a species of characins from South America, with 12 currently described species: \n* Cynopotamus amazonum (Günther, 1868) \n* Cynopotamus argenteus (Valenciennes, 1836) \n* Cynopotamus atratoensis (C. H. Eigenmann, 1907) \n* Cynopotamus bipunctatus Pellegrin, 1909 \n* Cynopotamus essequibensis C. H. Eigenmann, 1912 \n* Cynopotamus gouldingi Menezes, 1987 \n* Cynopotamus juruenae Menezes, 1987 \n* Cynopotamus kincaidi (L. P. Schultz, 1950) \n* Cynopotamus magdalenae (Steindachner, 1879) \n* Cynopotamus tocantinensis Menezes, 1987 \n* Cynopotamus venezuelae (L. P. Schultz, 1944) \n* Cynopotamus xinguano Menezes, 2007