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Colorado Herpetological Society's

Guide to the Reptiles and Amphibians of Colorado

  
About this Guide
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
Turtles
Lizards
Snakes
List of Subspecies
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Plains Blackhead Snake
(Tantilla nigriceps)

Plains Blackhead Snake

Family Colubridae

Photo from Hammerson, 1986.
Used with permission.

Last Updated on January 20, 2000.

Plains Blackhead Snake (Tantilla nigriceps)   Range Map
Color Key
Description:
Adults to 15" in length. Color uniformly light brown, except for black cap on head. Moderately slender body, with smooth scales. Divided anal plate. Enlarged, grooved teeth at rear of jaw; saliva may be toxic to arthropods.
Elevation Range:
Below 7000' in eastern Colorado.
Subspecies in Colorado:
Tantilla nigriceps nigriceps

Plains Blackhead Snake
(Tantilla nigriceps)
CountyRef. CountyRef. CountyRef. CountyRef.
Adams *  Dolores  La Plata  Pitkin 
Alamosa  DouglasHMS13 Lake  ProwersH
Arapahoe *  Eagle  LarimerH PuebloH
Archuleta  El Paso *  Las AnimasH Rio Blanco 
BacaH Elbert *  LincolnH Rio Grande 
BentH FremontH Logan *  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 *  Morgan *  Teller * 
CrowleyDC6 Jackson  OteroH Washington * 
Custer *  JeffersonH Ouray  WeldH
Delta  KiowaCM2 Park  YumaH
DenverCJC1 Kit CarsonGAH10 Phillips * 

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