Pyxicephalus adspersus Tschudi, 1838
African bullfrog, Giant bullfrog, South African Burrowing Frog
© 2013 Dr. Peter Janzen (1 of 12)
In adults, the dorsum is dark olive-green, but may vary from brown to grey and even blue; short sections of the longitudinal skin ridges may be white or cream. In juveniles, a pale vertebral stripe is often present, contrasting sharply with the bright green ground colour. The abdomen is white to creamy-yellow, except in the region of the forelimbs, where it is bright yellow in breeding males. Dark mottling may be present in the gular region of males (Du Preez 1996)
Distribution and Habitat
Country distribution from AmphibiaWeb's database: Angola, Botswana, Namibia, South Africa, Swaziland, Zambia, Zimbabwe
Nigeria to Somalia, Kenya, Tanzania, Mozambique, Malawi, Zambia, Zimbabwe, Angola, abd Rep. South Africa, excluding of the southwestern Cape Province.
Found in drier savannas in large pans that fill with water during rains.
Life History, Abundance, Activity, and Special Behaviors
P. adspersus will eat just about anything, and are sometimes cannibalistic.
During the dry season the frogs live underground. P. adspersus can reach an age of 45 years. Predators of the adults are birds and of tadpoles include turtles (Pelusios) and monitors (Varanus niloticus).
Channing, A. (2001). Amphibians of Central and Southern Africa. Cornell University Press, Ithaca, NY.
Du Preez, L.H. (1996). Field guide and key to the frogs and toads of the Free State. University of the Orange Free State, Bloemfontein, South Africa.
Minter, L.R., Burger, M., Harrison, J.A., Braack, H.H., Bishop, P.J., and Kloepfer, D. (eds.) (2004). Atlas and Red Data Book of the Frogs of South Africa, Lesotho and Swaziland. Volume 9 SI/MAB Series. Smithsonian, Washington D.C..
Originally submitted by: Phil Bishop (first posted 2004-10-19)
Edited by: Peter Janzen, Tate Tunstall (2005-09-21)
Species Account Citation: AmphibiaWeb 2005 Pyxicephalus adspersus: African bullfrog <https://amphibiaweb.org/species/4966> University of California, Berkeley, CA, USA. Accessed Oct 3, 2023.
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Citation: AmphibiaWeb. 2023. <https://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 3 Oct 2023.
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