Hypopachus variolosus
(Cope, 1866)
hai-po-PAK-us — var-ee-oh-LOW-sus
SSAR 9th Edition Comments:
Although only two species are currently recognized within this genus, very strong geographic
variation in coloration, call, and toe structure suggests that several species are masquerading
under this species name. Given that the type locality of H. variolosus is in Costa Rica, the scientific name applied to the U.S. form is likely to change.
Range maps are based on curated specimens and provided gratis by CNAH.
(Created by Travis W. Taggart; Version: 2023.04.08.23.01.40)
Download GeoJSON polygon range file: - 0.41 MB
Province/State Distribution:
USA: Texas
First instance(s) of published English names:
Taylor's Toad (Hypopachus cuneus: Wright, Anna Allen, and Alex Hazen Wright. 1933. Handbook of frogs and toads. The frogs and toads of the United States and Canada Comstock Publishing Associates, Ithaca, NY. xi+231pp.); Mexican Narrow-mouthed Toad (Hypopachus cuneus: Schmidt, Karl P. 1953. A Check List of North American Amphibians and Reptiles. 6th Edition. University of Chicago Press, Chicago, Illinois. 280pp.); Brownsville Narrow-mouthed Toad (Hypopachus cuneus cuneus: Schmidt, Karl P. 1953. A Check List of North American Amphibians and Reptiles. 6th Edition. University of Chicago Press, Chicago, Illinois. 280pp.);
Catalog of American Amphibians and Reptiles
Amphibian Species of the World
GenBank
USGS - Nonindigenous Aquatic Species Database
Selected References:
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1955
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Davis, William B. A new sheep toad (genus Hypopachus) from Mexico. Herpetologica 11:71-72
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1968
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Nelson, Craig E. and H. S. Cuellar. Anatomical comparison of tadpoles of the genera Hypopachus and Gastrophryne (Microhylidae). Copeia 1968(2):423-424
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1973
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Nelson, Craig E. Systematics of the middle American upland populations of Hypopachus (Anura: Microhylidae). Herpetologica 29(1):6-17
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1973
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Nelson, Craig E. Mating calls of the Microhylinae: Descriptions and phylogenetic and ecological considerations. Herpetologica 29(2):163-176
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1974
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Nelson, C. E. Further studies on the systematics of Hypopachus (Anura: Microhylidae). Herpetologica 30:250–275
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2005
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Lannoo, Michael (Editor) Amphibian Declines: The Conservation Status of United States Species. University fo California Press, Berkeley. 1115pp.
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2013
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Dodd, C. Kenneth. Frogs of the United States and Canada. John Hopkins University Press, Baltimore, Maryland. 982pp.
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2023
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Dodd, C. Kenneth. Frogs of the United States and Canada. Second Edition. John Hopkins University Press, Baltimore, Maryland. 1032pp.
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