Hylarana fonensis (Rödel and Bangoura, 2004)
H. fonensis is a large, slender frog with pointed a snout, and it has a very distinct, concave loreal region. H. fonensis’ skin is very rough due to numerous tubercles on almost all dorsal surfaces with a uniform beige-brown back. This species most distinct feature is it’s comparatively broad dorsolateral ridges that stretch from posterior corner of the eye to the groin. Males have huge protruding glands on the upper arms, extensive webbing on the feet andtoe tips that are long, slender, and pointed (Rodel and Bangoura, 2004).
H. fonensis has a similar appearance to A. albolabris and A. asperrima; however, A. albolabris and A. asperrima males have much darker backs than H. fonensis. In A. albolabris the backs are nearly always coloured with irregular black spots, while in A. asperrima these spots are often present but occasionally might be absent (Rodel and Bangoura, 2004).
H. fonensis occurs in symparty with A. albolabris. H. fonensis has been found in northeastern flank of the Pic de Fon and the Parc National de Haute Niger forest habitat. These parks consist mainly of Guinea savannah, but also include some forest remnants that harbour tropical forest species. It has been suggested that this species might be widespread in the Guinean transition zone between rainforest and humid Guinea savannah (Rodel and Bangoura, 2004).