Key: Step 96. Family Chelydridae
Family Chelydridae

96a. A row of supramarginal scutes above marginals on each side; upper jaw strongly hooked; carapace with three prominent keels extending entire length.

Genus Macroclemys

Macroclemys temminckii

96b. No supramarginals; upper jaw not strongly hooked; carapacial keels not extending entire length.

Genus Chelydra

Step 97. Genus Chelydra
Decision path