African Clawed Frog

Kingdom: Animalia
Phylum:      Chordata
Class:          Amphibia
Order:          Anura
Family:        Pipidae
Genus:        Xenopus

Species:      X. laevis

The African clawed frog is a species of African aquatic frog of the Pipidae family. Its name is derived from the three short claws on each hind foot, which it uses to tear apart its food.This is a unique family of frogs that lack a tongue and a visible ear. The males also lack vocal cords. Instead of moveable eyelids, a horny, transparent covering protects their eyes. The body is flattened and the head is wedge-shaped and smaller than the body. The African clawed frog's front limbs are small with unwebbed fingers that are used to push food into the mouth. Its hind legs are large and webbed and the three inside toes on either foot have claws, this is where they get their common name. However, while they may look like claws, they are not true claws but cornified tips.This frog has smooth slippery skin, which is multicolored on its back with blotches of olive gray or brown. The underside is creamy white with a yellow tinge.African clawed frogs have the ability to change their appearance to match their background. They can become dark, light, or mottled. They also have a lateral line system that is very sensitive to movement of water.Males weigh two ounces (60 grams), and are about two to 2.5 inches (5 to 6 cm) long. Males also lack a vocal sac, which most male frogs have. Females are much larger. They weigh seven ounces (200 grams) and are about four to 4.5 inches (10 to 12 cm) long. Females also have cloacal extensions at the end of their abdomen.


These frogs are found along the African Rift Valley south of the Sahara in east and southern Africa. They are also found in South Africa and Namibia and Angola in western Africa. As an invasive pest species they are now found in freshwater areas all over the world. They prefer warm stagnant pools, and quiet streams; they are rarely found in running streams. They can tolerate wide variations in water pH, but metal ions are toxic. They thrive in temperatures from 60 to 80 degrees Fahrenheit. They leave the water only when forced to migrate.

No comments:

Post a Comment