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Colorado Herpetological Society's

Guide to the Reptiles and Amphibians of Colorado

  
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Naming Conflicts,
Documenting,
& References
INDEX OF SPECIES
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By Scientific Name
Grouped By Family
Index of Counties
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Amphibians
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Bullfrog
(Rana catesbeiana)

Bullfrog

Family Ranidae

Photo from Hammerson, 1986.
Used with permission.

Last Updated on January 20, 2000.

Bullfrog (Rana catesbeiana)   Range Map
Color Key
Description:
To 8" or more in snout-vent length. Color green to near black, often with darker spots. Prominent fold of skin from behind eye extending around eardrum. Eardrum as large as eye in females; larger in males.

Native to eastern U.S.; introduced widely throughout Colorado and other western states.

Bullfrog
(Rana catesbeiana)
CountyRef. CountyRef. CountyRef. CountyRef.
AdamsH Dolores *  La PlataH Pitkin 
AlamosaH DouglasH Lake  ProwersH
ArapahoeH Eagle  LarimerRJW1 PuebloH
Archuleta *  El PasoDON1 Las AnimasH Rio BlancoTM1
BacaH Elbert *  LincolnH Rio GrandeH
BentRJW1 FremontRLH6 LoganH Routt 
BoulderH GarfieldJR1 MesaH Saguache * 
Chaffee  Gilpin  Mineral *  San Juan * 
CheyenneTC1 Grand  MoffatH San Miguel * 
Clear Creek  GunnisonH MontezumaAS2 SedgwickH
Conejos *  Hinsdale *  Montrose *  Summit 
Costilla *  Huerfano *  MorganH Teller * 
CrowleyJH3 Jackson  OteroH Washington * 
Custer *  JeffersonH Ouray *  WeldH
DeltaH KiowaSM4 Park  YumaH
DenverH Kit CarsonH PhillipsDC9

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