Pyxicephalidae
Subfamilies: 2 Genera: 13 Species: 68 Range: Sub-Saharan Africa Ecology and behavior: They favor open woodlands, tropical forests, savannas, and mountainous areas.
Active predominantly at night or at dusk. Feed on invertebrates and small rodents. Morphological characteristics: The total length of members of this family ranges from 1.5 to 25 cm. In their structure they are in many respects similar to members of the family Ranidae. Coloration corresponds to their distribution range: from yellowish to brownish; some species are colored green and olive. African bullfrog (Pyxicephalus adspersus) Source: Frost, D. R. Pyxicephalidae.
Amphibian Species of the World, an Online Reference.
American Museum of Natural History, New York, USA