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''Micruroides euryxanthus'', commonly known as the Sonoran coral snake or the Arizona coral snake, is a species of venomous elapid, which is endemic to northwestern Mexico and the Southwestern United States. ==Description== Adults are in total length (including tail).〔 The color pattern consists of broad, alternating rings of red and black, separated by narrower rings of white or yellow. Markings become paler as they reach the belly. The head is black,〔Reptiles and Amphibians of Arizona. www.reptilesofaz.org/Snakes-Subpages/h-m-euryxanthus.html.〕 the black extending to the posterior border of the parietals. 〔Boulenger, G.A. 1896. ''Catalogue of the Snakes in the British Museum (Natural History). Volume III., Containing the Colubridæ (Opisthoglyphæ and Proteroglyphæ)...'' Trustees of the British Museum (Natural History). (Taylor and Francis, Printers.) London. xiv + 727 pp. + Plates I.- XXV. (''Elaps euryxanthus'', p. 415.)〕 The smooth dorsal scales are arranged in 15 rows at midbody. Ventrals 214-241; anal plate divided; subcaudals 21-34, also divided (paired).〔Smith, H.M., and E.D. Brodie, Jr. 1982. ''Reptiles of North America: A Guide to Field Identification''. Golden Press. New York. 240 pp. ISBN 0-307-13666-3 (paperback). ("Elapids—family Elapidae" and ''"Micruroides euryxanthus"'', pp. 196-197.)〕 ''Micruroides euryxanthus'' resembles ''Micrurus fulvius''. However, the white or yellow rings are broader than in ''Micrurus fulvius'', and there are fewer black rings on the tail, usually only 2.〔 Also, the first ring on the body (the first ring behind the white or yellow ring on the back of the head) is red, whereas in ''Micrurus fulvius'' it is black.〔Schmidt, K.P., and D.D. Davis. 1941. ''Field Book of Snakes of the United States and Canada''. G.P. Putnam's Sons. New York. 365 pp. (''Micruroides euryxanthus'', pp. 276-277, Figure 91.)〕 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「Micruroides」の詳細全文を読む スポンサード リンク
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