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The eastern fence lizard (''Sceloporus undulatus'') is a medium-sized species of lizard found along forest edges, rock piles, and rotting logs or stumps in the eastern United States. It is sometimes referred to as the prairie lizard, fence swift, gray lizard, northern fence lizard or pine lizard.〔http://mdc.mo.gov/discover-nature/outdoor-recreation/nature-viewing/amphibians-and-reptiles/lizards〕 It is also referred to colloquially as the horn-billed lizard. ==Taxonomy== The generic name, ''Sceloporus'', is derived from the Greek ''skelos''/σκελος, meaning "leg", and the Latin ''porus'', meaning "hole", referring to the enlarged femoral pores found in this genus of lizards. The specific name, ''undulatus'', is Latin for "wave", referring to the transverse dark crossbars on the backs of these lizards.〔Liddell & Scott (1980). Greek-English Lexicon, Abridged Edition. Oxford University Press, Oxford, UK. ISBN 0-19-910207-4〕 Until 2002, 10 subspecies of ''S. undulatus'' were recognized:,〔''S. u. consobrinus'', ''S. u. cowlesi'', ''S. u. elongatus'', ''S. u. erythrocheilus'', ''S. u. garmani'', ''S. u. hyacinthinus'', ''S. u. speari'', ''S. u. tedbrowni'', ''S. u. tristichus'', and ''S. u. undulatus''.〕 but re-evaluation showed paraphyly between the subspecies. These were reclassified as four distinct evolutionary species (the three new species being ''S. consobrinus'', ''S. tristichus'', and ''S. cowlesi''). The narrowed redefinition of ''S. undulatus'' has been suggested to still contain two subspecies divided by the Appalachian Mountains. None is currently formally recognized. The following cladogram is based on Leache and Reeder, 2002:〔 |2=''S. undulatus'' }} }} |2=''S. virgatus'' }} |2=''S. occidentalis'' }} }} 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「Eastern fence lizard」の詳細全文を読む スポンサード リンク
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