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Hypopachus variolosus.jpg
Mexican narrow-mouthed toad (Hypopachus variolosus)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Microhylidae
Subfamily: Gastrophryninae
Genus: Hypopachus
Keferstein, 1867

4, see text.

Hypopachus is a genus of microhylid frogs (common name: sheep frogs) found in the Americas between Costa Rica and the southern United States.[1] Its name means ‘somewhat thick’, referring to its tough skin.[2]


The four species are:[1]


  1. ^ a b Frost, Darrel R. (2014). "Hypopachus Keferstein, 1867". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 22 March 2014. 
  2. ^ Lee, Julian C. (1996). The amphibians and reptiles of the Yucatán Peninsula. Comstock. p. 119. ISBN 978-0-8014-2450-2. Hypopachus is from the Greek hypo, meaning "under", "beneath", or "less than usual" and pachys, "thick".