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:''Common names: Mexican west coast rattlesnake,〔Campbell JA, Lamar WW. 2004. The Venomous Reptiles of the Western Hemisphere. Comstock Publishing Associates, Ithaca and London. 870 pp. 1500 plates. ISBN 0-8014-4141-2.〕 Mexican green rattler,〔Klauber LM. 1997. Rattlesnakes: Their Habitats, Life Histories, and Influence on Mankind. Second Edition. First published in 1956, 1972. University of California Press, Berkeley. ISBN 0-520-21056-5.〕 more'' ''Crotalus basiliscus'' is a venomous pit viper species found in western Mexico. The specific name is derived from the Greek word for king, ''basiliskos'', and alludes to this snake's large size and potent venom.〔 No subspecies is currently recognized. ==Description== This is one of the largest rattlesnake species. Specimens exceeding are not uncommon, while the maximum size reported is (Klauber, 1972).〔 The body is moderately stout and rather rectangular in cross section.〔U.S. Navy. 1991. Poisonous Snakes of the World. US Govt. New York: Dover Publications Inc. 203 pp. ISBN 0-486-26629-X.〕 At midbody, 25-29 rows of strongly keeled dorsal scales occur. The ventral scales number 174-206 and the subcaudals 18-36.〔 The color pattern consists of brown or grayish ground color overlaid with 26-41 dark, rhombus-shaped (diamond) blotches with light edges. The head is a uniform grayish-brown except for its lighter labial scales and dark postorbital bar. No distinct pattern is found on the crown or neck areas. The tail may be gray, with darker bands, or almost uniform in color without any distinct markings. The belly is white or cream-colored.〔 The young are mostly red, but adults eventually become an olive green.〔 Within its range, this is the only rattlesnake with diamond-shaped dorsal markings.〔 This snake often occurs in the same areas as ''C. molossus'', where the two appear to hybridize freely. While these two species are easily distinguished, identifying the hybrid specimens is problematic.〔 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「Crotalus basiliscus」の詳細全文を読む スポンサード リンク
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