Cryptothylax greshoffii (Schilthuis 1889)

A large (Males 39–54 mm, females 48–58 mm) uniformly tawny to reddish frog from clearings in forests in central Africa. Dorsum uniform, but with a dark canthal band which continues behind the eye. Eye golden green. There is a colour difference between the sexes, the females being more reddish than the males with ventral parts, hands and feet orange red.Voice. – The voice has been described as a low sound, similar to knocking on wood.This account was taken from "Treefrogs of Africa" by Arne Schiøtz with kind permission from Edition Chimaira (http://www.chimaira.de/) publishers, Frankfurt am Main.

A dweller of swamps, lakes and streams in the forest belt, often along large rivers. I have observed it near Kinshasa in very open bushland with no forest in the vicinity.

Development. – Males call from low branches and grass near water. Eggs are large and unpigmented like small peas, 11–19 together in a jelly placed on leaves above water. The tadpole is elongate . Tooth formula 1/3 or 1+1/3.

Cryptothylax greshoffii is a species of frogs in the family Hyperoliidae. It is found in Angola, Cameroon, the Central African Republic, the Democratic Republic of the Congo, Equatorial Guinea, Gabon, and possibly Republic of the Congo. Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical moist shrubland, rivers, swamps, freshwater lakes, freshwater marshes, intermittent freshwater marshes, rural gardens, heavily degraded former forests, and aquaculture ponds. Cryptothylax greshoffii and “Hyperolius” robustus have a phylogenetic relatationship