Animalia > Chordata > Amphibia > Anura > Pipidae > Xenopus > Xenopus longipes

Xenopus longipes (Lake Oku Clawed Frog)

Wikipedia Abstract

The Lake Oku clawed frog (Xenopus longipes) is a species of frog in the Pipidae family, endemic to Lake Oku, a small crater lake in northwest Cameroon. It is a small, dark-coloured, fully aquatic frog with a length of 28 to 36 mm (1.1 to 1.4 in), males being slightly smaller than females. The International Union for Conservation of Nature has rated this frog as "critically endangered" on the basis of its small area of occurrence at a single location, and the possibility that introduction of non-native fish into the lake could cause the frog to be wiped out.
View Wikipedia Record: Xenopus longipes

Endangered Species

Status: Critically Endangered
View IUCN Record: Xenopus longipes

EDGE Analysis

The African clawed frogs have undergone drastic changes in chromosome number during their evolution, making them some of the most genetically unusual creatures in the world. They exhibit polyploidy, meaning they have more than the two sets of chromosomes found in most other organisms (known as diploid). The Lake Oku clawed frog has 12 sets of chromosomes, so is dodecaploid. The only known habitat is Lake Oku, a freshwater lake completely surrounded by montane rainforest found 2,219 metres above sea level on Mount Oku, the second highest peak in mainland West Africa. Local people respect this lake as a sacred place and no fish have been introduced. Invasive predators could prove catastrophic to the clawed frog population.
Uniqueness Scale: Similiar (0) 
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
 Unique & Vulnerable (100)
ED Score: 24.83
EDGE Score: 6.02
View EDGE Record: Xenopus longipes


Litters / Year [1]  1


Name Countries Ecozone Biome Species Report Climate Land
Cameroonian Highlands forests Cameroon, Nigeria Afrotropic Tropical and Subtropical Moist Broadleaf Forests

Alliance for Zero Extinction (AZE) Sites

Name  Location   Map   Climate   Land Use 
Mount Oku Cameroon

Biodiversity Hotspots

Name Location Endemic Species Website
Guinean Forests of West Africa Benin, Côte d'Ivoire, Equatorial Guinea, Ghana, Guinea, Liberia, Nigeria, São Tomé and Príncipe, Sierra Leone, Togo Yes

Institutions (Zoos, etc.)

Institution Infraspecies / Breed 
Zoo of Antwerp
Zoological Society of London

Range Map


External References



Attributes / relations provided by
1Oliveira, Brunno Freire; São-Pedro, Vinícius Avelar; Santos-Barrera, Georgina; Penone, Caterina; C. Costa, Gabriel. (2017) AmphiBIO, a global database for amphibian ecological traits. Sci. Data.
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 WWF WildFINDER
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
AZE sites provided by Alliance for Zero Extinction (2010). 2010 AZE Update.
Abstract provided by DBpedia licensed under a Creative Commons License