Callulina

Callulina (commonly known as the warty frogs) is a small genus of frogs in the family Brevicipitidae. There are nine species in this genus. They live in Tanzania and Kenya. For a long time, scientists thought that there was only one species in "Callulina", a frog that lives in the Eastern Arc Mountains in Tanzania and in southern Kenya. However, they found eight more species. Most of these frogs are in danger of dying out.
Species.
Amphibian Species of the World says there are nine "Callulina" species.