| 翻訳と辞書 |
| Carphophis amoenus ： ウィキペディア英語版 |
Carphophis amoenus
''Carphophis amoenus'', commonly known as the worm snake,〔 is a species of nonvenomous colubrid endemic to the Eastern United States. ''C. amoenus'' can be found east of the Mississippi, from southwest Massachusetts south to southern Alabama west to Louisiana and then north to Illinois.〔Ernst CH, Ernst EM. 2003. ''Snakes of the United States and Canada.'' Smithsonian Books. Washington and London. ("''Carphophis amoenus''", pp. 53–56.) ISBN 1588340198〕 This species of snake protects a large range, and normally prefers a moist habitat in the rocky woodlands, under rotten wood of logs and stumps.〔Ernst CH, Barbour RW. (1989) ''Snakes of Eastern North America''. George Mason University Press. Fairfax, Virginia. ("''Carphophis amoenus''", pp. 15–17.) ISBN 0913969249〕 Though this snake is quite abundant over its range, it is rarely seen because of its dormant lifestyle and where it usually resides. This snake is most common on the edges or in the ecotonal areas of open to thick woodlands, and the borders of wetlands. It may also be found in the grasslands next to woodlands. The best chance to spot it is after heavy rains, when its small size and distinct color make it easy to spot. This species prefers moist soil inhabited by earthworms, which are its main prey, so the soil needs to be sufficiently moist. The snake’s skin naturally evaporates water; so the soil needs to be moist enough to offset this. ''C. amoenus'' is mostly found under rocks and in sufficient leaf litter during the extreme daytime heat.〔
== Description ==
The worm snake is a small snake. Adults are in total length, record .〔Conant, Roger (1975) ''A Field Guide to Reptiles and Amphibians of Eastern and Central North America, Second Edition''. Houghton Mifflin. Boston. ("''Carphophis amoenus''", pp. 174–175 + Plate 25 + Map 131.) ISBN 0395904528〕 It is brown dorsally, and bright pink ventrally, with the belly color including one or two dorsal scale rows.〔Schmidt, K.P., and Davis, D.D. (1941) ''Field Book of Snakes of the United States and Canada''. G.P. Putnam's Sons. New York. ("The Worm Snakes ''Carphophis amoena''", pp. 102–104, Figure 20, Plate 10.)〕 The dorsal scales are smooth, in 13 rows. It has five upper labials and one postocular.〔Smith, H.M., and E.D. Brodie, Jr. (1982) ''Reptiles of North America: A Guide to Field Identification''. Golden Press. New York. 240 pp. ("Worm Snake", pp. 162–163.)〕''C. amoenus'' coloration is unpatterned and can be tan to dark brown in color; it has a pointed head, and small, black eyes. It has pinkish ventral pigmentation which extends dorsally onto dorsal scale rows one to two. The tail is short in comparison with its body and ends in an abrupt, spine-like scale.〔 Females are longer than males, but have shorter tails. The head is small, conical and no wider than the neck. Other small, unpatterned brownish snakes, such as earth snakes (genus ''Virginia'') and red-bellied snakes (''Storeria occipitomaculata''), both have keeled body scales, but lack the spine-tipped tail. Other ways to distinguish between ''C. amoenus'' and other species is the body scales usually occur in 13 rows and are smooth and pitless, and the anal plate is split.〔〔Croshaw DA, Jensen JB, Camp CD, Gibbson W, Elliott MJ (2008) ''Amphibians and Reptiles of Georgia''. University of Georgia Press. Athens, Georgia. ("Eastern Worm Snake", pp. 328–329.) ISBN 0820331112〕 Another snake commonly confused with ''C. amoenus'' is the western worm snake (''Carphophis vermis''), which used to be considered a subspecies of ''C. amoenus'', and has the slight ventral pigmentation extending onto the third body scale row, and a dark gray or gray-violet dorsum. The southeastern crowned snake (''Tantilla coronata'') has 15 midbody scale rows, a dark head, and a dark collar.〔
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「Carphophis amoenus」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|