Japalura polygonata (Tree-climbing lizard) - Japalura polygonata (English spelling)

Japanese: キノボリトカゲ(木登蜥蜴) - キノボリトカゲ（英語表記）Japalura polygonata

An arboreal lizard (illustration) of the Agamidae family of the reptile class. It is found in the Amami, Okinawa and Sakishima islands, and has local names such as Koshokuraya and Ataka. It is about 25cm long, with the tail taking up about 1/2 to 2/3 of that. It has a large, angular head, with a row of small yellow crest-like scales on the back of the head. Males do not have a pouch on their pharynx, but they spread out the yellow skin for displays during the breeding season. They move quickly in the trees, using their long, slender limbs and fingers to balance themselves, but are slow on the ground, running by hopping on their hind legs.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

爬虫綱アガマ科の樹上性トカゲ（イラスト）。奄美，沖縄，先島の各諸島に分布し，コショクラヤ，アタカなどの地方名がある。全長約25cm，尾はその1/2～2/3ほどを占める。頭部は角ばって大きく，後頭部に黄色の小さなとさか状のうろこが1列に並ぶ。雄の咽頭（いんとう）部には飾袋はないが，繁殖期のディスプレーには黄色い部分の皮膚を広げる。木の上を長い尾でバランスをとりながら発達した細長い四肢と指ですばやく行動するが，地上ではのろく，後肢で跳ぶようにして走る。

出典　株式会社平凡社世界大百科事典第２版について　情報

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