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''Cardioglossa oreas'' (common name: Mount Okou long-fingered frog) is a species of frog in the family
Arthroleptidae The Arthroleptidae are a family of frogs found in sub-Saharan Africa. This group includes African treefrogs in the genus ''Leptopelis'' along with the terrestrial breeding squeakers '' Arthroleptis'', and several genera restricted to the Guinea ...
. It is endemic to Cameroon and known from the Western High Plateau between Mount Oku and the
Bamboutos Mountains The Bambouto massif or Bamboutos Mountains is a group of volcanoes based on a swell in the Cameroon Volcanic Line, located in the Western High Plateau of Cameroon, merging in the north with the Oku Volcanic Field. Geology The large volcanic comp ...
. Records from Mount Manengouba refer to ''
Cardioglossa manengouba ''Cardioglossa'' is a genus of frogs in the family Arthroleptidae known as long-fingered frogs. They are native to West Africa, western and central Africa, with the greatest species richness in Cameroon. They are found near streams in lowland and ...
''.


Description

Males measure and females in snout–vent length. Unusually for the genus ''Cardioglossa'', the third finger in males is not elongated. It is nevertheless sexually dimorphic in that males have spines in the fingers whereas females do not. The tympanum is small and inconspicuous, another unusual character within ''Cardioglossa''. Furthermore, the characteristic dorsal markings and the white line running under the tympanum are absent. Despite these unusual morphological characters, genetic data nest ''C. oreas'' well within the genus ''Cardioglossa''.


Habitat and conservation

''Cardioglossa oreas'' occurs in montane forests, often in bamboo forests; it also occurs in degraded habitats containing trees. It is typically found in areas around fast-flowing streams, its breeding habitat. Its altitudinal range is
above sea level Height above mean sea level is a measure of the vertical distance (height, elevation or altitude) of a location in reference to a historic mean sea level taken as a vertical datum. In geodesy, it is formalized as ''orthometric heights''. The comb ...
. ''Cardioglossa oreas'' is common within its small range, but the distribution of this species is severely fragmented and its forest habitat is declining. It occurs in the Bafut-Ngemba Forest Reserve.


References

{{Taxonbar, from=Q2240311 oreas Frogs of Africa Amphibians of Cameroon Endemic fauna of Cameroon Amphibians described in 1972 Taxonomy articles created by Polbot Fauna of the Cameroonian Highlands forests