安吉小鲵(Hynobius amjien-sis),属两栖纲、有尾目、小鲵科,为中国特有种,文献记载仅分布于模式标本产地浙江安吉县龙王山自然保护区,于1992年正式命名并发表。安吉小鲵全长153～166毫米,体表皮肤光滑,背部暗褐或棕褐色,腹部灰褐色。头平扁,吻宽圆,上下颌具细齿;躯干粗壮,前肢四指,后肢5趾,无蹼。安吉小鲵已知唯一的栖息、繁殖地位于龙王山自然保护区南缘海 Hynobius amjien-sis belongs to the amphibians, palaeopodidae, and genus Polygonaceae. It is endemic to China. The records are only distributed in the Longwang Mountain Nature Reserve of Anji County, Zhejiang Province, where the model specimen was produced. It was officially named and published in 1992. . The length of the Anji small clam is 153 to 166 mm. The skin on the body surface is smooth, the back is dark brown or tan, and the abdomen is gray-brown. Flat head, wide kiss, upper and lower jaw with fine teeth; torso thick, forelegs four fingers, hind legs 5 toes, no flaws. The only habitats and breeding grounds known to Anji Xiaoyu are located in the southern edge of Longwangshan Nature Reserve