Western Spiny Softshell
Apalone spinifera


Family Trionychidae

Description:
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
DenverLJL2
RME2
Kit Carson *  Phillips * 

Color Key