2生物学特性2.1形态特性巴西彩龟形态与其它龟类基本相似，身体分头、颈、躯干、四肢及尾五部分，呈盒状。头背面略呈三角形，较乌龟、三线闭壳龟、黄喉拟水龟宽大，接近大头乌龟。头光滑无鳞，呈暗绿色，有黄色纵行条纹，腹面的条纹比背面宽。口位于头的前端，吻端稍突出；鼻 2 Biological characteristics 2.1 Morphological characteristics Brazil Turtle and other turtle basically similar in shape, body, head, neck, trunk, limbs and tail five parts, box-shaped. The back of the head slightly triangular, more turtles, three-line turtle shell, yellow turtle wide turtle, close to the bulk turtle. Smooth head without scales, dark green, with yellow longitudinal stripes, ventral stripes wider than the back. The mouth is located in the front of the head, the kiss slightly protruding nose;