True frog
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The True frogs (of family Ranidae), have the widest distribution of any frog family. They are abundant throughout the world, excluding Australia and Antarctica. (The only ranid species native to Australia, the Australian wood frog (Rana daemelii), is restricted to the far north.) The true frogs are present in North America, northern South America, Europe, Asia, Madagascar, Africa and from the East Indies to New Guinea.
The true frogs vary greatly in size, ranging from small, such as the Wood Frog (Rana sylvatica), to the largest frog in the world, the Goliath Frog (Conraua goliath). Many of the true frogs are aquatic or habit close to water. Most species lay their eggs in the water and go through a tadpole stage. However, as with most families of frogs, there is large variation of habitat within the family. Those of the genus Tomopterna are burrowing frogs native to Africa. They exhibit most of the characteristics common to burrowing frogs around the world. There are also arboreal species of true frogs.
Typically, true frogs are smooth, moist-skinned frogs, with large, powerful legs and extensively webbed feet.
[edit] Taxonomy
Some authors believe the sub-family Petropedetinae is actually a distinct family (called Petropedetidae). [1]
This is a list of genera within the Ranidae family:
- Afrana Dubois, 1992
- Amietia Dubois, 1987
- Amnirana Dubois, 1992
- Amolops Cope, 1865
- Anhydrophryne Hewitt, 1919
- Arthroleptella Hewitt, 1926
- Arthroleptides Nieden, 1911
- Aubria Boulenger, 1917
- Batrachylodes Boulenger, 1887
- Cacosternum Boulenger, 1887
- Ceratobatrachus Boulenger, 1884
- Chaparana Bourret, 1939
- Conraua Nieden, 1908
- Dimorphognathus Boulenger, 1906
- Discodeles Boulenger, 1918
- Ericabatrachus Largen, 1991
- Euphlyctis Fitzinger, 1843
- Fejervarya Bolkay, 1915
- Hildebrandtia Nieden, 1907
- Hoplobatrachus Peters, 1863
- Huia Yang, 1991
- Indirana Laurent, 1986
- Ingerana Dubois, 1987
- Lankanectes Dubois & Ohler, 2001
- Lanzarana Clarke, 1982
- Lithobates Fitzinger, 1843
- Limnonectes Fitzinger, 1843
- Meristogenys Yang, 1991
- Micrixalus Boulenger, 1888
- Microbatrachella Hewitt, 1926
- Minervarya Dubois, Ohler & Biju, 2001
- Nannophrys Günther, 1869
- Nanorana Günther, 1896
- Natalobatrachus Hewitt and Methuen, 1912
- Nothophryne Poynton, 1963
- Nyctibatrachus Boulenger, 1882
- Occidozyga Kuhl & Hasselt, 1822
- Paa Dubois, 1975
- Palmatorappia Ahl, 1927
- Petropedetes Reichenow, 1874
- Phrynobatrachus Günther, 1862
- Phrynodon Parker, 1935
- Platymantis Günther, 1858
- Pseudoamolops Jiang, Fei, Ye, Zeng, Zhen, Xie & Chen, 1997
- Poyntonia Channing and Boycott, 1989
- Pterorana Kiyasetuo & Khare, 1986
- Ptychadena Boulenger, 1917
- Pyxicephalus Tschudi, 1838
- Rana Linnaeus, 1758
- Sphaerotheca Günther, 1859
- Staurois Cope, 1865
- Strongylopus Tschudi, 1838
- Tomopterna Duméril & Bibron, 1841
- Wurana Li, Lu & Lu 2006
[edit] Cited references
- ^ Amphibian Species of the World - Petropedetidae Noble, 1931. Retrieved on 2006-08-05.
[edit] References
- Cogger, H.G., R.G. Zweifel, and D. Kirschner (2004). Encyclopedia of Reptiles & Amphibians Second Edition. Fog City Press. ISBN 1-877019-69-0.
- Frost, Darrel R. 2006. Amphibian Species of the World: an Online Reference. Version 4 (17 August 2006). Electronic Database accessible at http://research.amnh.org/herpetology/amphibia/index.php. American Museum of Natural History, New York, USA.
- Frost et al. 2006. The amphibian tree of life. Bulletin of the American Museum of Natural History. Number 297. New York. Issued March 15, 2006.
