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Colorado Herpetological Society's

Guide to the Reptiles and Amphibians of Colorado

  
About this Guide
Naming Conflicts,
Documenting,
& References
INDEX OF SPECIES
By Common Name
By Scientific Name
Grouped By Family
Index of Counties
Map of Counties
IDENTIFICATION KEYS
Amphibians
Turtles
Lizards
Snakes
List of Subspecies
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Great Plains Narrowmouth Toad
(Gastrophryne olivacea)

Great Plains Narrowmouth Toad

Family Microhylidae

Photo from Hammerson, 1986.
Used with permission.
Listed as Microhyla olivacea in some older publications.

Last Updated on January 20, 2000.

Great Plains Narrowmouth Toad (Gastrophryne olivacea)   Range Map
Color Key
Description:
Up to 1½" snout-vent length. Color brown, tan, or gray, sometimes with black spots. Small head with pointed snout. Fold of skin extends from shoulders up behind eyes and across head.
Elevation Range:
Below 5000' in extreme southeastern Colorado.

Great Plains Narrowmouth Toad
(Gastrophryne olivacea)
CountyRef. CountyRef. CountyRef. CountyRef.
Adams  Dolores  La Plata  Pitkin 
Alamosa  Douglas  Lake  Prowers 
Arapahoe  Eagle  Larimer  Pueblo 
Archuleta  El Paso  Las AnimasSB4 Rio Blanco 
BacaH Elbert  Lincoln  Rio Grande 
Bent  Fremont  Logan  Routt 
Boulder  Garfield  Mesa  Saguache 
Chaffee  Gilpin  Mineral  San Juan 
Cheyenne  Grand  Moffat  San Miguel 
Clear Creek  Gunnison  Montezuma  Sedgwick 
Conejos  Hinsdale  Montrose  Summit 
Costilla  Huerfano  Morgan  Teller 
Crowley  Jackson  Otero  Washington 
Custer  Jefferson  Ouray  Weld 
Delta  Kiowa  Park  Yuma 
Denver  Kit Carson  Phillips 

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