A general term for lizards belonging to the family Gekkonidae of the order Squamata in the class Reptilia that have evolved into special forms. Approximately 670 species are distributed widely in the tropical and subtropical regions of the world, with some even reaching temperate zones. Most are around 10 cm in length, but the Gekko gecko (illustration), found in tropical Asia, is about 30 cm in length, and the Sphaerodactylus of the West Indies is about 5 cm in length. Geckos, which live in narrow spaces such as under tree bark, have eyes that are protected by a single transparent scale that is a modified lower eyelid, and they often extend their tongues to clean surfaces. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
爬虫綱有鱗目ヤモリ科Gekkonidaeに属する特殊な形態に分化したトカゲ類の総称。約670種が世界の熱帯,亜熱帯に広く分布し,一部が温帯に及んでいる。ほとんどが全長10cm前後であるが,熱帯アジア産のトッケイGekko gecko(イラスト)などは全長約30cm,西インド諸島産のアンチルヒメヤモリ属Sphaerodactylusは全長約5cmである。樹皮の下など狭い空間で行動するヤモリ類の眼は,下まぶたが変形した1枚の透明なうろこで覆われて保護され,しばしば舌をのばして表面を掃除する。
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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