Edible bullfrog

The edible bullfrog is a large bodied frog in which the males typically reach 8.3–12 cm (3.3–4.7 in) in snout–to–vent length and the females 8.5–11 cm (3.3–4.3 in). Exceptionally large males may even reach 13.8 cm (5.4 in), although the species does not approach the sizes attained by the related African bullfrog (P. adspersus). The females of the edible bullfrog are much less bulky than the males and typically reach just half of the weight of the males. There are two tooth like structures in the lower jaw of the broad mouth bears which point upwards. The skin of the edible bullfrog has slight, rather rounded warts. It has short lateral ridges which never stretch all the way from the head to the end of the body, their form changes considerably as the frog grows. The young frogs are quite sturdy and look almost plump but the adults show dorsoventral flattening. As the frogs grow their eyes become more centrally placed, and the eyes of adults are very protruding. They show a distinct tympanum, which is large and oval in shape. The front feet are unwebbed but the hind feet are webbed. The backs of adult animals is more or less uniform yellow green to drab olive green with the males tending to be greener than the more olive brown females. The females may show a pale stripe along the backbone, light lines on the ridges and warts, these are less common in males. …

The edible bullfrog is found in Angola, Benin, Botswana, Burkina Faso, Chad, Kenya, Malawi, Mali, Mauritania, Mozambique, Nigeria, Tanzania, Zambia and Zimbabwe; but there is some confusion due to misidentification with similar closely related species such as African bullfrog Pyxicephalus adspersus.