Males measure 23–23 mm (0.9–0.9 in) and females 27–30 mm (1.1–1.2 in) in snout–vent length.[5] 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.[6] The tympanum is small and inconspicuous, another unusual character within Cardioglossa.[7] Furthermore, the characteristic dorsal markings and the white line running under the tympanum are absent.[5] Despite these unusual morphological characters, genetic data nest C. oreas well within the genus Cardioglossa.[6][8]
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 1,900–2,650 m (6,230–8,690 ft) above sea level.[1]
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.[1]
^ abFrost, Darrel R. (2018). "Cardioglossa oreas Amiet, 1972". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 13 May 2018.
^ abHirschfeld, Mareike; Blackburn, David C.; Burger, Marius; Greenbaum, Eli; Zassi-Boulou, Ange-Ghislain & Rödel, Mark-Oliver (2015). "Two new species of long-fingered frogs of the genus Cardioglossa (Anura: Arthroleptidae) from Central African rainforests". African Journal of Herpetology. 64 (2): 81–102. Bibcode:2015AfJH...64...81H. doi:10.1080/21564574.2015.1052102. S2CID86429301.
^Blackburn, D. (2008). "Biogeography and evolution of body size and life history of African frogs: Phylogeny of squeakers (Arthroleptis) and long-fingered frogs (Cardioglossa) estimated from mitochondrial data". Molecular Phylogenetics and Evolution. 49 (3): 806–826. Bibcode:2008MolPE..49..806B. doi:10.1016/j.ympev.2008.08.015. PMID18804169.
