Mertensophryne howelli
family: Bufonidae
Conservation Status (definitions)
IUCN (Red List) Status Endangered (EN)
Other International Status None
National Status None
Regional Status None

Country distribution from AmphibiaWeb's database: Tanzania, United Republic of


View distribution map using BerkeleyMapper.


From the IUCN Red List Species Account:


Range Description

This species, which is endemic to Tanzania, is known only from the Mrora Forest on Mafia Island, and from the Jozani Forest on Zanzibar (and from an unmapped, unspecified locality on the east of Zanzibar). All records are from close to sea level.

Habitat and Ecology

It is terrestrial, occurring in lowland coastal forest. Some of its remaining habitat is degraded, and it seems to display some adaptability to living in such habitats. Its breeding behaviour is unknown, but it might breed in puddles in tree roots like Stephopaedes anotis.


It is probably an uncommon species.

Population Trend


Major Threats

Its habitat is being degraded rapidly on Mafia for agriculture, wood extraction, and human settlements.

Conservation Actions

It possibly occurs in the Mafia Marine Park, but this remains to be confirmed, and improved protection of remaining suitable habitat on Mafia is a priority. On Zanzibar, the Jozani Forest, the largest tract of forest remaining on the main island, has recently had its protection status upgraded to that of a national park.

Red List Status

Endangered (EN)


John Poynton, Kim Howell 2004. Mertensophryne howelli. In: IUCN 2014


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