Ringed map turtle

The ringed map turtle or ringed sawback (Graptemys oculifera) is a species of turtle in the family Emydidae endemic to the southern United States.

Geographic range
It is frequently found in the Pearl River system in Louisiana and Mississippi. It shares this range with the Pearl River map turtle (G. pearlensis).

Description
Male turtles may attain a carapace length of 10 cm (4 in). Females are larger, and may attain a carapace length of 22 cm (8.5 in). On the carapace are light-colored rings, which are thicker than the rings on Graptemys nigrinoda.