Black-necked black turtles (confirmed introduction)
The largest black-necked black turtle The characteristic is black. This is a turtle that does not only have a black neck. The adult black-necked black turtle is completely black. It is similar to the sexually mature male tortoise. The difference is that the black-necked black turtle is black. Both male and female are black.
Black-necked black turtles are larger, with carapace often 12-25cm long and 11-19cm wide. The carapace is oblong and flat, with a prominent longitudinal ridge and no lateral edges. The carapace of adult turtles is generally tan or dark brown (the carapace of young turtles is slightly dark brown), and the center of each scute is lighter in some individuals. The plastron is black in adults and brown in larvae, with irregular tan patterns on the edges of each scute. The nail bridge is brown, dark brown or brown-grey, which is obviously different from the color of the plastron.
The head is large and wide, the snout is blunt, the snout is slightly longer than the upper beak, and is cut obliquely inward and downward. The joint angle between the denticles of the lower jaw is greater than or equal to 90 degrees. The head is black with yellow-green stripes on the sides (the sides of the head or neck of larvae are orange-red). The hands and feet are black without stripes, and the fingers and toes are webbed. The tail is black and short. The female turtle is larger, has a shorter tail, and the cloacal hole is closer to the rear edge of the carapace. The male turtle is smaller, with a thicker and longer tail root, and the cloaca hole is further away from the rear edge of the carapace.
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