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| Atheris ceratophora | ||||||||||||||||||||
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| Atheris ceratophora Werner, 1895 | ||||||||||||||||||||
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Atheris ceratophora is a venomous viper species found only in a few mountain ranges in Tanzania. This is the only horned, arboreal viper in Africa.[2] No subspecies are currently recognized.[3]
Common names: Usambara bush viper,[2] horned bush viper, eyelash bush viper,[4] more.
Grown to a maximum length of 54 cm. Females slightly larger than males. The maximum length for a male is reported to be 42 cm, the tail of which measured 8 cm.[5]
Easily recognized by a set of 3-5 horn-like superciliary scales above each eye. The rostral scale has more than twice the length of its width. It has 9 upper labials. The chin shield contacts 3 of the lower labials.[5]
Mid-body, the dorsal scales number 21-25. The ventral scale count is 142-152. There are 41-56 subcaudals.[5]
The color pattern consists of a yellowish-green, olive, gray or black ground color. This may or may not be overlaid by variable markings, sometimes in the form of irregular black spots or cross-bars that may be lined with yellow or white spots. The belly is dirty orange to almost black in color, sometimes with dark spots.[2]
Usambara bush viper,[2] horned bush viper, eyelash bush viper,[4] Usambara mountain bush viper.[5]
The Usambara and Uzungwe Mountains in Tanzania. The type locality is "Usambara" Mountains [Tanzania].[1] They are probably also found in the Uluguru Mountains.[2]
Found in grass and low bushes about 1 m above the ground[2] in woodlands and forests at altitudes of 700 to over 2000 m.[5]
Most likely nocturnal or crepuscular.[5]