AMPHIBIAWEB
Eleutherodactylus pipilans
Whistling Chirping Frog
Subgenus: Syrrhophus
family: Eleutherodactylidae
subfamily: Eleutherodactylinae

© 2013 Will Lattea (1 of 5)

  hear Fonozoo call

Conservation Status (definitions)
IUCN (Red List) Status Least Concern (LC)
CITES No CITES Listing
Other International Status None
National Status None
Regional Status CALIFORNIA

 

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Description
Eleutherodactylus pipilans is a small frog with snout vent length in males of 22.6 - 28.5 mm and in females of 21.1 - 29.4 mm. The body outline is truncate and from above the snout is oval. The eye is large and pupils are round. The tympanum is 36.5 - 54 % diameter of the eye, and vertically oval. The arms are long. Digit pads are slightly expanded or not expanded. Relative front digit length is 3 > 4 > 2 = 1 and has no webbing. The legs are relatively short. The inner metatarsal tubercle is slightly larger to under twice as large as outer tubercle. The skin is smooth to shagreened dorsally and smooth ventrally. Males have a vocal slit (Taylor 1940; Lynch 1970).

In life, the background color is dark brown to slightly lighter brown with yellow, orange, light brown, or greenish blotches or spots. The arms are banded. Preserved coloration is light brown with pale blotches (Lynch 1970).

There are two subspecies of Eleutherodactylus pipilans, E.p. pipilans and E. p. nebulosus that differ slightly in tympanum size and coloration. Eleutherodactylus p. pipilans tympanum size measured as 40.6 - 54.0 % diameter of eye size, which is larger than E. p. nebulosus’ 36.6 - 47.8 %. Color differences occur in spots, with E. p. pipilans having large light colored blotches or spots, and E. p. nebulosus having small light spots (Lynch 1970).

Distribution and Habitat

Country distribution from AmphibiaWeb's database: Guatemala, Mexico

 

View distribution map using BerkeleyMapper.
Eleutherodactylus pipilans can be found in Mexico and Guatemala, occurring in southern Mexico as far west as Guerrero along the Sierra Madre del Sur, continuing southeastward through southern Oaxaca and Veracruz, into southern Chiapas and western Guatemala. The species inhabits tropical seasonal forest at elevations from sea. Eleutherodactylus pipilans can be found on or under rocks and under leaf litter (Santos-Barrera et al. 2004).

Life History, Abundance, Activity, and Special Behaviors
Eleutherodactylus pipilans is a terrestrial species. Offspring have direct development. Males have distinctive mating call. Large population and a broad habitat range contribute to the species being listed as Least Concern (Santos-Barrera et al. 2004).

Trends and Threats
Eleutherodactylus pipilans is reported to have a stable population trend by the IUCN. Its only major threat is habitat modification or destruction of tropical seasonal forests (Santos-Barrera et al. 2004).

Relation to Humans
Previously described as Syrrhophus pipilans (Lynch 1970).

The species authority is Taylor, E. H. 1940. A new Syrrophus from Guerrero, Mexico. Proceedings of the Biological Society of Washington 53: 95-98.

The species epithet, pipilo means chirping or peeping in Latin, referencing the call of the male (Lynch 1970).

Possible reasons for amphibian decline

General habitat alteration and loss

References

Lynch, J.D. (1970). ''A taxonomic revision of the Leptodactylid frog genus Syrrhophus Cope.'' University of Kansas Publications, Museum of Natural History, 20, 1-45.

Santos-Barrera, G., Canseco-Márquez, L., Muñoz Alonso, A., Acevedo, M. 2004. Eleutherodactylus pipilans. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. . Downloaded on 19 March 2013

Taylor, E.H. (1940). ''A new Syrrophus from Guerrero, Mexico.'' Proceedings of the Biological Society of Washington, 53, 95-98.



Written by Shawn Wright (stothew AT utexas.edu), University of Texas at Austin
First submitted 2013-08-07
Edited by Ann T. Chang (2013-08-07)

Species Account Citation: AmphibiaWeb 2013 Eleutherodactylus pipilans: Whistling Chirping Frog <http://amphibiaweb.org/species/3135> University of California, Berkeley, CA, USA. Accessed Oct 23, 2017.



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Citation: AmphibiaWeb. 2017. <http://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 23 Oct 2017.

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