Bitis arietans somalica (Somali: Abeeso) also known as the Somali puff adder,[1] is a venomous viper subspecies found only in Somalia, eastern Ethiopia, and northern Kenya.[2] It is distinguished from B. a. arietans by its keeled subcaudals.[1]
Normally, B. arietans grows to a total length (body and tail) around 800–900 mm (about 32-36 in). In northern Kenya, Somalia, and though, they grow unusually large, reaching total lengths up to 1905mm.[2]
This snake is found in northeastern Kenya, eastern Ethiopia, Somalia (including Coiama Island), a[2] The type locality given is "Bohodle, 2100 ft., (Bohodle, 640 m,).