Salamandrella keyserlingi (English spelling)

...The Japanese giant salamander Onychodactylus japonicus (illustration), found in the mountains of Honshu and Shikoku, is also large, measuring 15-19cm in length. Its cylindrical tail is longer than half its length, and it is a stream-laying spawning species, lacking lungs. The northern salamander Salamandrella keyserlingi , found in the marshes of eastern Hokkaido, is a species found widely from Sakhalin to Siberia and northeastern China, and has four digits on its hind legs. The Ambystomatidae, found in the Americas, are not very different in morphology from the Salamanderidae, but the Plethodontidae includes a wide variety of species in both morphology and ecology, such as the Texas blind salamander Typhlomolge rathbuni , which has external gills and lives in underground caves, and the genus Batrachoseps , which hides by coiling its elongated body with degenerated limbs. ...

*Some of the terminology that mentions "Salamandrella keyserlingi" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…本州･四国の山地に分布するハコネサンショウウオOnychodactylus japonicus（イラスト）も全長15～19cmと大きく，円筒状の尾が全長の1/2よりも長い渓流産卵型で，肺を欠く。北海道東部の湿原に生息するキタサンショウウオSalamandrella keyserlingiは，サハリンからシベリア，中国東北に広く分布する種で，後肢の指が4本。アメリカ大陸に分布するアンビストマ科は形態的にサンショウウオ科と大差ないが，プレソドン科には，外鰓（がいさい）をもち洞窟の地下水中にすむテキサスメクラサンショウウオTyphlomolge rathbuniや，四肢が退化した細長い体をコイル状に巻いて隠れるホソサンショウウオ属Batrachosepsなど，形態，生態ともに変異に富んだものが含まれる。…

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