Bullfrog
Rana catesbeiana

Family Ranidae 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.		Photo from Hammerson, 1986. Used with permission.
County Ref. County Ref. County Ref. County Ref. Adams H Dolores  *  La Plata H Pitkin   Alamosa H Douglas H Lake   Prowers H Arapahoe H Eagle   Larimer RJW1 Pueblo H Archuleta  *  El Paso DON1 Las Animas H Rio Blanco TM1 Baca H Elbert  *  Lincoln H Rio Grande H Bent RJW1 Fremont RLH6 Logan H Routt   Boulder H Garfield JR1 Mesa H Saguache  *  Chaffee   Gilpin   Mineral  *  San Juan  *  Cheyenne TC1 Grand   Moffat H San Miguel  *  Clear Creek   Gunnison H Montezuma AS2 Sedgwick H Conejos  *  Hinsdale  *  Montrose  *  Summit   Costilla  *  Huerfano  *  Morgan H Teller  *  Crowley Jh3 Jackson   Otero H Washington  *  Custer  *  Jefferson H Ouray  *  Weld H Delta H Kiowa SM4 Park   Yuma H Denver H Kit Carson H Phillips DC9