This large leopard frog has a snout-vent length of 56 to 112 mm. The dorsal surface is grey to green or brown in color and is covered by many irregular dark spots. The ventral surface is cream colored, possibly pale yellow around the upper thighs. Mottling may be present on the chin of older individuals. The supralabial stripe is incomplete in adults. Dorsolateral folds are well developed but displaced medially in the region of the urostyle. Males possess external vocal sacs and conspicuous vestigal oviducts. Tadpoles are olive colored with a yellowish cast on the sides and dorsum. Iris is gold with tiny specks of black. Tail marked with pale and dark spots.
Distribution and Habitat
Country distribution from AmphibiaWeb's database: Belize, Mexico, Nicaragua, United States
U.S. state distribution from AmphibiaWeb's database: Arizona, California, New Mexico, Texas
Found in Eddy County, New Mexico, southwestern Texas, and southward throughout the eastern states of Mexico to northeastern Nicaragua. Introduced to southwestern Arizona in the last 25 years, it now occurs at several localities along the lower Colorado River.
See another account at californiaherps.com.
Platz, J. E. (1963). ''Rana berlandieri.'' Catalogue of American Amphibians and Reptiles. American Society of Ichthyologists and Herpetologists, 508.1-508.4.
Originally submitted by: April Robinson (first posted 2001-02-12)
Species Account Citation: AmphibiaWeb 2004 Rana berlandieri: Rio Grande Leopard Frog <https://amphibiaweb.org/species/4990> University of California, Berkeley, CA, USA. Accessed Oct 4, 2022.
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Citation: AmphibiaWeb. 2022. <https://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 4 Oct 2022.
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