Arthroleptides

Arthroleptides
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Amphibia
Order:	Anura
Family:	Petropedetidae
Genus:	Arthroleptides Nieden, 1911 "1910"
Type species
Arthroleptides martiensseni Nieden, 1911 "1910"

Arthroleptides is a small genus of frogs in the Petropedetidae family. Their common name is rocky river frogs. They are found in the mountains of East Africa (Tanzania, Kenya, and probably Uganda). They have been considered to belong to Petropedetes, which after exclusion of Arthroleptides is restricted to Central Africa.

Arthroleptides species have distinct tympana and no external vocal sacs. Males have femoral glands, and in the breeding state, spiny nuptial excrescences. Tadpoles live on wet rocks out of water.

The three species are:

Also, one undescribed species from the Nguru Mountains probably exists.

...
Wikipedia