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Agkistrodon contortrix laticinctus : ウィキペディア英語版 | Agkistrodon contortrix laticinctus
:''Common names: Broad-banded Copperhead, Texas copperhead,〔Wright AH, Wright AA. 1957. Handbook of Snakes. Comstock Publishing Associates. (7th printing, 1985). 1105 pp. ISBN 0-8014-0463-0.〕 more.'' ''Agkistrodon contortrix laticinctus'' is a venomous pitviper subspecies found in the southern United States, from Kansas, through Oklahoma and throughout central Texas. ==Description== This form is typically a light tan in color, with darker brown, wide crossbands - which gives it its common name. The actual color varies, by locality, from a red-brown, to a gray-brown. In the western reaches of its range, the species can be difficult to distinguish from the trans-Pecos copperhead, ''A. c. pictigaster''. The only notable physical difference between the subspecies is the ''A. c. pictigaster'' tends to have an elaborately patterned underside, often being an irregular, white and black pattern, whereas ''A. c. laticinctus'' tends to be plain white, only have minimal patterning, or have elongated random blotching instead of a distinct pattern. The subspecies intergrade where their ranges overlap, further confusing identification. It also overlaps with the southern copperhead, ''A. c. contortrix'' in the eastern reaches of its range, making specimens there difficult to distinguish, but generally ''A. c. contortrix'' has banding that narrows at the spine, creating hourglass shapes, whereas ''A. c. laticinctus'' has bands that do not narrow at the spine. They grow to approximately 20-36 inches (50–90 cm) in length. As juveniles, all species of ''Agkistrodon'' have a bright green-yellow color to their tail tips, believed to be used as a lure to attract prey items to approach within striking range. The color fades to a grey or brown at about a year of age.
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「Agkistrodon contortrix laticinctus」の詳細全文を読む
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