The three-keeled turtle (hereinafter referred to as the three-keeled turtle) has a brown-red carapace. There are three bright yellow ridges on the carapace extending from the front to the end. The edge of the marginal shield is yellow; the plastron is yellow and has no pattern on it. .
The head and limbs are brown or dark brown, and there are two orange-red or off-white stripes from the upper end of the nostrils from the top of the eyes to the neck. lines, although the lines on the male's head disappear with age. The limbs are brown or dark brown, sometimes with slight yellow spots. The outer ends of the forelimbs are covered with larger scales, the hind limbs are semi-webbed, and the scales are close to the soles of the feet at the lower end.
