Noun | 1. | ![]() reptile genus - a genus of reptiles Emydidae, family Emydidae - box and water turtles Pseudemys rubriventris, red-bellied terrapin, red-bellied turtle, redbelly - freshwater turtle of Chesapeake Bay tributaries having red markings on the lower shell Pseudemys scripta, yellow-bellied terrapin, slider - freshwater turtle of United States and South America; frequently raised commercially; some young sold as pets cooter, Pseudemys concinna, river cooter - large river turtle of the southern United States and northern Mexico |