Atheris anisolepis, otherwise known as the Mayombe bush-viper,[1][2][3] is a species of viper endemic to west-central Africa.

[2][3] The Atheris anisolepis is very similar to the Atheris squamigera but it is differentiated by the complete row of scales between the supralabial scales and the ocular scales as well as having enlarged, smooth, and/or weekly keeled scales.

However, this differentiation does not always apply and may not always be accurate.

[5] Atheris anisolepis is found in southern Gabon, southern Congo, and western Democratic Republic of Congo.

[6] Atheris anisolepis is an arboreal snake[1][2] that is found in drier areas of shrub and woodland-savanna at elevations below 400 m (1,300 ft).