Some Barbour's map turtles are rather plain, but this young adult female's carapace is adorned with very attractive orange crescents. Map turtle coloration varies.
Cagle's map turtle (Graptemys caglei) is one of the smaller members of the genus . Adult females measure 5½ to 8 inches in length. Adult males may be as small.
Sexual dimorphism is extreme in map turtles with females reaching much larger adult sizes than males. Map turtles were recently proposed for CITES protection.