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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
By Common Name
By Scientific Name
Grouped By Family
Index of Counties
Map of Counties
IDENTIFICATION KEYS
Amphibians
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List of Subspecies
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Racer
(Coluber constrictor)

Racer

Family Colubridae

Photo from Hammerson, 1986.
Used with permission.

Last Updated on January 20, 2000.

Racer (Coluber constrictor)   Range Map
Color Key
Description:
Adults 30" to 60" in length. Color uniform brown, olive or grayish in adults; dark blotches on lighter background in juveniles. Slender body with smooth scales. Divided anal plate.
Elevation Range:
Below 6000' in eastern Colorado; below 5500' in western valleys.
Subspecies in Colorado:
Coluber constrictor flaviventris in eastern Colorado;
Coluber constrictor mormon in western Colorado.

Racer
(Coluber constrictor)
CountyRef. CountyRef. CountyRef. CountyRef.
AdamsH Dolores  La PlataPHS1 Pitkin 
Alamosa  DouglasH Lake  ProwersH
ArapahoeRHS3 Eagle  LarimerH PuebloH
Archuleta *  El PasoH Las AnimasH Rio BlancoPSC1
BacaH ElbertDC3 LincolnH Rio Grande 
BentH Fremont *  LoganH Routt 
BoulderH GarfieldH MesaH Saguache 
Chaffee  Gilpin  Mineral  San Juan 
CheyenneH Grand  MoffatH, PSC1 San Miguel * 
Clear Creek  Gunnison *  Montezuma  SedgwickH
Conejos  Hinsdale  MontroseH Summit 
Costilla  HuerfanoLJL1 MorganH Teller * 
CrowleyJH2 Jackson  OteroH WashingtonGAH5
Custer *  JeffersonH Ouray *  WeldH
DeltaH KiowaH Park  YumaH
DenverH Kit CarsonGAH5 Phillips * 

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