鳄龟(Chelydra serpentina),属爬行纲、龟鳖目、曲颈龟亚目、鳄龟科、鳄龟属,是世界230余种龟类动物中较为原始、特化的一种,别名平背龟、肉龟、小鳄龟和鳄鱼龟。产于阿根廷、秘鲁、巴西、委内瑞拉、美国及加拿大南部五大湖辽阔地域,其中美国较多,因产地不同而分化出5个亚种,我国于1997年左右开始 Chelydra serpentina is a relatively primitive and specialized species of more than 230 species of turtles in the world, belonging to the reptiles, turtles, turtles, snapping turtles and snapping turtles. Turtles, tortoises, baby snapping turtles and alligator turtles. Produced in Argentina, Peru, Brazil, Venezuela, the United States and southern Canada five large lakes, including the United States more, due to different producing areas and the differentiation of five subspecies, our country began around 1997