AMPHIBIAWEB
Rana forreri
Forrer's Grass Frog
Subgenus: Pantherana
family: Ranidae
Taxonomic Notes: This species was placed in the genus Lithobates by Frost et al. (2006). However, Yuan et al. (2016, Systematic Biology, doi: 10.1093/sysbio/syw055) showed that this action created problems of paraphyly in other genera. Yuan et al. (2016) recognized subgenera within Rana for the major traditional species groups, with Lithobates used as the subgenus for the Rana palmipes group. AmphibiaWeb recommends the optional use of these subgenera to refer to these major species groups, with names written as Rana (Aquarana) catesbeiana, for example.

© 2000 Eli Greenbaum (1 of 10)
Conservation Status (definitions)
IUCN (Red List) Status Least Concern (LC)
CITES No CITES Listing
Other International Status None
National Status None
Regional Status None

 

View distribution map using BerkeleyMapper.

   

Description
Rana forreri is a moderately large frog with adults reaching 120 mm. This frog has smooth skin, a pointed snout, well-developed dorsolateral folds extending from the eye to the base of the hind limb, and dark brownish dorsal spots. The color can be dark green to tan. Hind limbs also have well-defined dark bands (Grismer 2002).

Distribution and Habitat

Country distribution from AmphibiaWeb's database: Costa Rica, Mexico, Nicaragua

 

View distribution map using BerkeleyMapper.
Rana forreri is distributed from southern Sonora to Jalisco, Mexico, and on down through Nicaragua and into northern Costa Rica. It lives in ponds (Grismer 2002).

Life History, Abundance, Activity, and Special Behaviors
During the evening, individuals sit at the water's edge or along the shore up to 2 meters from the water. The mating call consists of a low soft growling trill lasting 1.5 to 2 seconds and producing the sound of w-a-a-a-a-a (Grismer 2002).

Comments

A Spanish-language species account can be found at the website of Instituto Nacional de Biodiversidad (INBio).

References

Grismer, L. L. (2002). Amphibians and Reptiles of Baja California. University of California Press, Berkeley.



Written by Peera Chantasirivisal (Kris818 AT berkeley.edu), URAP, UC Berkeley
First submitted 2005-10-11
Edited by Kellie Whittaker (2009-11-02)

Species Account Citation: AmphibiaWeb 2009 Rana forreri: Forrer's Grass Frog <http://amphibiaweb.org/species/5033> University of California, Berkeley, CA, USA. Accessed Oct 19, 2017.



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Citation: AmphibiaWeb. 2017. <http://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 19 Oct 2017.

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