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Eryx somalicus : ウィキペディア英語版 | Eryx somalicus
''Eryx somalicus'', known commonly as the Somali sand boa, is a species of small snake in the Boidae family.〔McDiarmid, Roy W., Jonathan A. Campbell, and T'Shaka A. Touré. 1999. ''Snake Species of the World: A Taxonomic and Geographic Reference, Volume 1''. Washington, District of Columbia: Herpetologists' League. xi + 511 pp.〕 As its scientific name and common name suggest, it is found in Somalia, but may also be present in eastern Ethiopia. ==Description== Sand boas have no distinct neck, the body is cylindrical and the tail is short and tapering. The eyes are small with vertical pupils. The Somali sand boa is somewhat variable in colouring. The basic colour of the dorsal surface is some shade of brown with about thirty transverse or semi-oblique whitish bands, sometimes with dark margins. Some bands fuse together forming "Z" or "Y" shaped markings. Each dorsal scale has a pale central portion which results in fine longitudinal striations along the dorsal surface. The ventral surface is whitish, sometimes spotted with small spots of dark colour or with larger rounded dark patches, usually aligned with a dorsal bar.
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