Xenopus boumbaensis, the Mawa clawed frog, is a species of frog in the family Pipidae. It is known from a few localities in central and south-eastern Cameroon, and from north-western Republic of Congo and extreme south-western Central African Republic; it probably occurs more widely in the central African forest belt, but identification is difficult: it is one of the cryptic species that resemble Xenopus fraseri, from which it can be distinguished by chromosome number (2n=72) and a male advertisement call of a single note.
Adult males can grow to 37 mm (1.5 in) and females to 53 mm (2.1 in) in snout–vent length. All Xenopus are characterized by a streamlined and flattened body, a vocal organ specialized for underwater sound production, lateral-line organs, claws on the innermost three toes, and fully webbed toes. The coloration is green with numerous spots posteriorly and on the hind limbs. The venter can be immaculate white but is often heavily spotted.
Habitat and conservationEdit
This species occurs in aquatic habitats in the lowland rainforest region at elevations of 337–550 m (1,106–1,804 ft) above sea level. It is typically found in forested habitats in slow-flowing forest streams and springs, but may also be found in swamps. Reproduction presumably involves free-living larvae. It is threatened by deforestation and habitat degradation as well as water pollution. It is known from a number of protected areas: Boumba Bek, Nki, and Lobeke National Parks in Cameroon, Dzanga-Sangha Special Reserve in the Central African Republic, and the Odzala-Kokoua National Park in the Republic of Congo.
- IUCN SSC Amphibian Specialist Group (2018). "Xenopus boumbaensis". IUCN Red List of Threatened Species. IUCN. 2018: e.T58171A3066760. doi:10.2305/IUCN.UK.2018-1.RLTS.T58171A3066760.en.
- Loumont, C. (1983). "Deux especes nouvelles de Xenopus du Cameroun (Amphibia, Pipidae)". Revue Suisse de Zoologie (in French). 90: 169–177. doi:10.5962/bhl.part.81970.
- Frost, Darrel R. (2018). "Xenopus boumbaensis Loumont, 1983". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 9 November 2018.
- "Xenopus boumbaensis Loumont, 1983". African Amphibians. Retrieved 9 November 2018.
- "Xenopus boumbaensis". AmphibiaWeb. University of California, Berkeley. 2018. Retrieved 9 November 2018.
- Evans, Ben J.; Carter, Timothy F.; Greenbaum, Eli; Gvoždík, Václav; Kelley, Darcy B.; McLaughlin, Patrick J.; Pauwels, Olivier S. G.; Portik, Daniel M. & Stanley, Edward L. (2015). "Genetics, morphology, advertisement calls, and historical records distinguish six new polyploid species of African clawed frog (Xenopus, Pipidae) from West and Central Africa". PLoS ONE. 10 (12): e0142823. doi:10.1371/journal.pone.0142823. PMC 4682732. PMID 26672747.