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Cryptobranchidae is a family of salamanders commonly known as the giant salamanders. A single species, the hellbender (''Cryptobranchus alleganiensis'') occurs in the eastern United States, while Asian species occur in both China and Japan. They are the largest living amphibians known today. The Japanese giant salamander (''Andrias japonicus''), reaches up to , feeds on fish and crustaceans, and has been known to live for more than 50 years in captivity.〔(Andrias japonicus ). AmphibiaWeb: Information on amphibian biology and conservation. 2012. Berkeley, California: AmphibiaWeb. Retrieved 13 December 2012.〕 The Chinese giant salamander (''Andrias davidianus'') can reach a length of .〔(Andrias davidianus ). AmphibiaWeb: Information on amphibian biology and conservation. 2012. Berkeley, California: AmphibiaWeb. Retrieved 13 December 2012.〕 ==Taxonomy== The family name is from the Ancient Greek ''krypto'' ("hidden"), and ''branch'' ("gill"), which refer to how the members absorb oxygen through capillaries of their side-frills, which function as gills. Clade Pancryptobrancha (Cryptobranchidae + Ukrainurus) * Genus †''Ukrainurus'' * * †''Ukrainurus hypsognathus'' * Genus †''Chunerpeton'' * * †''Chunerpeton tianyiensis'' *Family Cryptobranchidae * * Genus ''Cryptobranchus'' (hellbender) * * * †"''Cryptobranchus''" ''saskatchewanensis'' * * * ''Cryptobranchus alleganiensis'' (Hellbender) * * Genus ''Andrias'' (Asian giant salamanders; sometimes classified among the ''Cryptobranchus'') * * * ''Andrias davidianus'' (Chinese giant salamander) – (Simplified Chinese: 娃娃鱼; pinyin: wāwāyú) * * * ''Andrias japonicus'' (Japanese giant salamander) – ((日本語:オオサンショウウオ)) * * * †''Andrias bohemicus'' * * * †''Andrias matthewi'' * * * †''Andrias scheuchzeri'' * * Genus †''Aviturus'' * * * †''Aviturus exsecratus'' * * Genus †''Ulanurus fractus'' * * * †''Ulanurus fractus'' * * Genus †''Zaissanurus'' * * * †''Zaissanurus beliajevae'' 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Giant salamander」の詳細全文を読む スポンサード リンク
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