Western Spiny Softshell
Apalone spinifera

Family Trionychidae

Up to 18" carapace length. Carapace olive, brown, or grayish, with dark spots in younger individuals. Shell flattened and covered with soft, leathery skin. Snout long and rounded; lips fleshy.
Elevation Range:
Below 5500' in eastern Colorado.
Subspecies in Colorado:
Apalone spinifera hartwegi
  Western Spiny Softshell
Photo from Hammerson, 1986.
Used with permission.
CountyRef. CountyRef. CountyRef. CountyRef.
AdamsLJL2 Dolores  La Plata  Pitkin 
Alamosa  Douglas *  Lake  ProwersH
Arapahoe *  Eagle  Larimer *  PuebloH
Archuleta  El Paso *  Las AnimasH Rio Blanco 
BacaH Elbert *  Lincoln *  Rio Grande 
BentH Fremont *  LoganH Routt 
BoulderH Garfield  Mesa  Saguache 
Chaffee  Gilpin  Mineral  San Juan 
Cheyenne *  Grand  Moffat  San Miguel 
Clear Creek  Gunnison  Montezuma  Sedgwick * 
Conejos  Hinsdale  Montrose  Summit 
Costilla  Huerfano *  MorganH Teller 
Crowley *  Jackson  OteroH Washington * 
Custer *  JeffersonLJL2 Ouray  WeldH
Delta  KiowaCDOW2 Park  YumaH
Kit Carson *  Phillips * 

Color Key