Pseudemys concinna, commonly known as river cooter turtle, is an aquatic turtle species that can be found in various parts of North America. There are several synonyms used for this species, including Pseudemys concinna concinna, Pseudemys concinna suwanniensis, Pseudemys nelsoni suwanniensis, and Pseudemys suwanniensis. These synonyms refer to different subspecies of the river cooter turtle.
Pseudemys concinna concinna is found in the southeastern United States, while Pseudemys concinna suwanniensis is found in Florida's Suwannee River Basin. Pseudemys nelsoni suwanniensis is another synonym used for this species, named after American naturalist Edward William Nelson.