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''Regina alleni'', the striped crayfish snake, is a species of North American snake that derives its common name from its principal prey, crayfish. This snake is also called the striped swamp snake. It is endemic to peninsular Florida.〔Smith, H.M. and E.D. Brodie, Jr. 1982. ''Reptiles of North America: A Guide to Field Identification''. Golden Press. New York. 240 pp. (STRIPED SWAMP SNAKE, pp. 158-159.)〕 Although rarely seen due to its secretive behavior, it can be found in large numbers in wet areas. ==Etymology== The specific name, ''alleni'', is in honor of zoologist Joel Asaph Allen, who collected the type specimen. == Description == This snake is of "small medium"〔Wright, A.H. and A.A. Wright. 1957. ''Handbook of Snakes of the United States and Canada''. Two Volumes. Comstock. Ithaca and London. 1,106 pp. (Size of adults, p. 7.)〕 size, 〔Conant, Roger. 1975. ''A Field Guide to Reptiles and Amphibians of Eastern and Central North America''. Second Edition. Houghton Mifflin. Boston. 429 pp. (STRIPED SWAMP SNAKE ''Liodytes alleni'', p. 152, Plate 22, Map 111.)〕 with a heavy body. The stripes which contribute to its common name are indistinct and located on the dark dorsal side. The ventral side is yellow with some dark spots. There is a clear sexual dimorphism with the females being the larger sex. == Habitat and geographic range == The striped crayfish snake is an aquatic snake and is regularly found in swamps and bogs, including cypress swamps as well as roadside ditches. The northern range limit is near the Florida-Georgia border. == Behavior == Besides crayfish, this snake also eats shrimp and dragonfly larvae. 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「Regina alleni」の詳細全文を読む スポンサード リンク
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