''Callulina'' (commonly known as the warty frogs) is a small genus of

frog A frog is any member of a diverse and largely semiaquatic group of short-bodied, tailless amphibian vertebrates composing the order (biology), order Anura (coming from the Ancient Greek , literally 'without tail'). Frog species with rough ski ...

s in the family

Brevicipitidae Brevicipitidae or rain frogs is a small Family (biology), family of frogs found in eastern and southern Africa. As of 2025 contains 38 species in 5 genera. eb application 2013. Berkeley, CaliforniaBrevicipitidae AmphibiaWeb, available at http ...

with nine members in

Tanzania Tanzania, officially the United Republic of Tanzania, is a country in East Africa within the African Great Lakes region. It is bordered by Uganda to the northwest; Kenya to the northeast; the Indian Ocean to the east; Mozambique and Malawi to t ...

and

Kenya Kenya, officially the Republic of Kenya, is a country located in East Africa. With an estimated population of more than 52.4 million as of mid-2024, Kenya is the 27th-most-populous country in the world and the 7th most populous in Africa. ...

. Originally ''Callulina'' was thought to be monotypic and widely distributed through

Eastern Arc Mountains The Eastern Arc Mountains are a chain of mountains found in Kenya and Tanzania. The chain runs from northeast to southwest, with the Taita Hills being in Kenya and the other ranges being in Tanzania. They are delimited on the southwest by the fau ...

in Tanzania and in southern Kenya. However, within the last decade eight new species has been identified, the majority of which are considered

critically endangered An IUCN Red List critically endangered (CR or sometimes CE) species is one that has been categorized by the International Union for Conservation of Nature as facing an extremely high risk of extinction in the wild. As of December 2023, of t ...

by the

International Union for Conservation of Nature The International Union for Conservation of Nature (IUCN) is an international organization working in the field of nature conservation and sustainable use of natural resources. Founded in 1948, IUCN has become the global authority on the stat ...

(IUCN).

Species

Amphibian Species of the World ''Amphibian Species of the World 6.2: An Online Reference'' (ASW) is a herpetology database. It lists the names of frogs, salamanders and other amphibians, which scientists first described each species and what year, and the animal's known range ...

lists nine ''Callulina'' species, most of which have been discovered within the last decade. * '' Callulina dawida,'' Taita warty frog * '' Callulina hanseni'', Hansen's warty frog * '' Callulina kanga'', Krefft's secret frog * '' Callulina kisiwamsitu'', Mazumbai warty frog * '' Callulina kreffti'', Krefft's warty frog * '' Callulina laphami'', Lapham's warty frog * '' Callulina meteora'', Nguru warty frog * '' Callulina shengena'', Shengena warty frog * '' Callulina stanleyi'', Stanley's warty frog

References

Brevicipitidae Amphibians of Sub-Saharan Africa Taxa named by Fritz Nieden Amphibian genera {{neobatrachia-stub