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Crotalus tortugensis : ウィキペディア英語版 | Crotalus tortugensis
:''Common names: Tortuga Island diamond 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.〕〔Klauber LM. 1956. ''Rattlesnakes: Their Habitats, Life Histories, and Influence on Mankind''. Second Edition, 1997. (published in 1956, 1972. ) University of California Press, Berkeley. ISBN 0-520-21056-5.〕 Tortuga Island rattlesnake.〔(''Crotalus tortugensis'' ) at (Rattlesnakes ). Accessed 23 March 2007.〕'' ''Crotalus tortugensis'' is a venomous pit viper species found only on Tortuga Island in the Gulf of California. No subspecies are currently recognized. ==Description== This species is smaller than its close relative, ''C. atrox'', with large males not growing to much more than in length. The largest specimen on record is (Klauber, 1972). Compared to ''C. atrox'', the head is shorter relative to the length of the body—a trait considered to be an indication of dwarfing, which is common in island populations.〔 The color pattern consists of a gray to gray-brown ground color, occasionally with a slight purplish or pinkish hue, overlaid dorsally with a series of 32-41 dark brown to purplish-brown blotches running down the length of the body. The blotches are hexagonal or diamond-shaped, marked with black spots, and bordered with irregular black mottling.〔
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