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Also known as Cryptobranchus alleganiensis, Cryptobranchus alleghaniensis, water-dog, mud-puppy, water-puppy

The hellbender (Cryptobranchus alleganiensis), also known as the hellbender salamander, is a species of aquatic giant salamander endemic to the eastern and central United States. It is the largest salamander in North America. A member of the family Cryptobranchidae, the hellbender is the only extant member of the genus Cryptobranchus. Other closely related salamanders in the same family are in the genus Andrias, which contains the Japanese and Chinese giant salamanders. The hellbender is much larger than any other salamander in its geographic range, and employs an unusual adaption for respirat

Species

Vulnerable

Hellbender

species

Observations725

美洲大鯢（Cryptobranchus alleganiensis），是一種水生兩棲動物。分佈於美國東部，棲息于水淺、流速快及含氧量高的河流、溪流中。以魚和蝦為主食，偶爾吃腐肉。視力很差，嗅覺靈敏。人工飼養的美洲大鯢壽命在30歲左右。生殖一般產卵時期為8月，於體外受精，卵生，受精卵的孵化期約50天。形狀美洲大鯢體長32釐米；重約2公斤。身體扁平，身上佈滿粘液，擁有四肢和尾巴。 ^ Bredehoeft, Keila E.; Schubert, Blaine W. A Re-Evaluation of the Pleistocene Hellbender, Cryptobranchus guildayi. Journal of Herpetology. 2015, 49: 157. doi:10.1670/12-222. ^ Geoffrey Hammerson, Christopher Phillips. Cryptobranchus alleganiensis. IUCN Red List of Threatened Species (IUCN). 2004, 2004: e.T59077A11879843 [23 February 2016]. doi:10.2305/IUCN.UK.2004.RLTS.T59077A11879843.en. 取自“https://zh.wikipedia.org/w/index.php?title=美洲大鲵&oldid=47473790” 分类：IUCN近危物種隐藏分类：物种微格式条目

via IUCN