AmphibiaWeb - Gastrophryne olivacea


(Translations may not be accurate.)

Gastrophryne olivacea (Hallowell, 1856)
Great Plains Narrow-mouthed Toad, Great Plains Narrowmouth Toad
family: Microhylidae
subfamily: Gastrophryninae
genus: Gastrophryne

© 2007 Stanley Trauth (1 of 17)

  hear call (151.6K WMA file)

[call details here]

Conservation Status (definitions)
IUCN Red List Status Account Least Concern (LC)
NatureServe Use NatureServe Explorer to see status.
National Status None
Regional Status None
Access Conservation Needs Assessment Report .



View distribution map in BerkeleyMapper.
View Bd and Bsal data (32 records).

Average body size and minimum adult size vary geographically. Although the throat, chest, and lower sides may be mottled, the abdomen is not. The dorsum is olive or tan in color, and may be marked with scattered black spots or plain. The toes are not webbed, and their tips are rounded and tapered. There is a single metatarsal tubercle on each hind foot (Nelson 1963).

Distribution and Habitat

Country distribution from AmphibiaWeb's database: Mexico, United States

U.S. state distribution from AmphibiaWeb's database: Arizona, Colorado, Kansas, Missouri, Nebraska, New Mexico, Oklahoma, Texas


View distribution map in BerkeleyMapper.
View Bd and Bsal data (32 records).
The range of Gastrophryne olivacea extends from extreme southern Nebraska and western Missouri southwards through most of Kansas, Oklahoma, and Texas to the Mexican Plateau and along the Pacific lowlands of Mexico south to Nayarit. It reaches an elevation of about 4,100 feet in Arizona.

Hear calls at the Western Sound Archive.


Nelson, C. E. (1963). ''Gastrophyrne olivacea (Hallowell). Western Narrow-mouthed Toad.'' Catalogue of American Amphibians and Reptiles. American Society of Ichthyologists and Herpetologists, 122.1-122.4.

Originally submitted by: Franziska Sandmeier (first posted 2001-02-09)
Edited by: Michelle S. Koo (2012-04-29)

Species Account Citation: AmphibiaWeb 2012 Gastrophryne olivacea: Great Plains Narrow-mouthed Toad <> University of California, Berkeley, CA, USA. Accessed Apr 13, 2024.

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Citation: AmphibiaWeb. 2024. <> University of California, Berkeley, CA, USA. Accessed 13 Apr 2024.

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