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Causus lichtensteinii
''Causus lichtensteinii'' is a venomous viper species found in western and central Africa.〔 No subspecies are currently recognized. The specific name, or epithet, ''"lichtensteinii"'', honors German herpetologist Martin Hinrich Lichtenstein.〔The Reptile Database. www.reptile-database.org.〕
==Description==
Averages 30-55 cm in length with a reported maximum of 70 cm.〔
The head is not that wide and the snout is blunt. The eye is surrounded by a circumorbital ring of 5-7 scales. There are 6 supralabials and 9 sublabials. The temporals number 2+3 and sometimes 2+2, with the first and second upper temporals being as long together as the first lower one. Loreals: 1+1. Midbody there are 15 rows of weakly keeled dorsal scales that have a velvety texture. The anal scale is single. There are 128-152 ventral scales. The subcaudals number 18-22 in males and 17-19 in females.〔
The color pattern consists of a greenish or olive ground color overlaid with a series of dark narrow backward pointing chevrons running down the back. This pattern may be vague or developed fully into rhombic markings. The back of the neck has a characteristic white V-shape while the throat is black with yellow bands. Juvenile specimens are generally dark brown in color.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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