 It has no nuchal scute, and the supracaudal is undivided, and curved inward in the male; the shields are strongly striated concentrically.The first vertebral scute is longer than broad, and the others are broader than long, with the third at least as broad as the corresponding costal.The plastron is large, truncated or openly notched in front, and deeply notched and bifid behind; the suture between the humerals is much longer than that between the femorals; the suture between the pectorals is very short; the axillary and inguinal sutures are rather small.