California Snakes Range Maps

A Guide to the Amphibians and Reptiles of California

These maps illustrate the general historic range of indigenous and alien snakes in California.

Red, or another color indicated below the map, shows this distribution. Snakes of the species or subspecies shown are expected to be found within the illustrated area in places where suitable habitat and conditions occur. In some cases, the current range may be fragmented or considerably diminished from the range illustrated here.

Click on the name link for pictures and information about a particular snake.

Click on a map for a larger view

Range Map Range Map Range Map
Rubber Boa Rosy Boa Glossy Snake

Red: Charina bottae - Northern Rubber Boa

Green & Orange: Charina umbratica - Southern Rubber boa

Green: Lichanura trivirgata - Rosy Boa

(Lichanura trivirgata roseofusca -  Coastal Rosy Boa)

Red: Lichanura orcutti - Northern Three-lined Boa

(Lichanura trivirgata roseofusca -  Coastal Rosy Boa
and Lichinura trivirgata gracia - Desert Rosy Boa)

Red: Arizona elegans eburnata - Desert Glossy Snake

Green: Arizona elegans occidentalis - California Glossy Snake

Blue: Arizona elegans candida - Mojave Glossy Snake
Range Map Range Map Range Map
Baja California Ratsnake Shovel-nosed Snake Western Yellow-bellied Racer

Red: Bogertophis rosaliae - Baja California Ratsnake

Green: Chionactis occipitalis annulata -
 Colorado Desert Shovel-nosed Snake

Red: Chionactis occipitalis occipitalis -
 Mohave Shovel-nosed Snake

Orange: Chionactis occipitalis talpina -
 Nevada Shovel-nosed Snake

Red: Coluber constrictor mormon -
Western Yellow-bellied Racer
Range Map Range Map Range Map
Coachwhip Baja California Coachwhip Striped Racer

Red: Coluber flagellum piceus -  Red Racer

(Masticophis flagellum piceus
) (Red Coachwhip)

Blue: Coluber flagellum ruddocki - San Joaquin Coachwhip

(Masticophis flagellum ruddocki

Pink: Coluber fuliginosus - Baja California Cochwhip

(Masticophis fuliginosus)

Red: Coluber lateralis lateralis - California Striped Racer

(Masticophis lateralis lateralis)

Orange: Coluber lateralis euryxanthus  - Alameda Striped Racer

(Masticophis lateralis euryxanthus
Range Map Sharp-tailed Snakes Range Map Range Map
Desert Striped Whipsnake Sharp-tailed Snake Ring-necked Snake

Red: Coluber taeniatus taeniatus - Desert Striped Whipsnake

(Masticophis taeniatus taeniatus)

Orange: Contia longicauda - Forest Sharp-tailed Snake 

Red:  Contia tenuis - Sharp-tailed Snake

Red:  Diadophis punctatus amabilis -  
Pacific Ring-necked Snake

Light Blue: Diadophis punctatus  modestus -
 San Bernardino Ring-necked Snake

Orange: Diadophis punctatus.  occidentalis -
 Northwestern Ring-necked Snake

Purple:  Diadophis punctatus pulchellus-
 Coral-bellied Ring-necked Snake

Light Green:  Diadophis punctatus regalis  -
Regal Ring-necked Snake

Blue: Diadophis punctatus similis -
 San Diego Ring-necked Snake

Green: Diadophis punctatus  vandenburghi -
 Monterey Ring-necked Snake

Gold: General area of intergradation
Range Map Range Map Range Map
Nightsnake California Kingsnake
California Mountain Kingsnake

Green: Hypsiglena torquata nuchalata -  
California Nightsnake

Red: Hypsiglena torquata deserticola -
Desert Nightsnake

Purple: Hypsiglena ochrorhyncha klauberi -
San Diego Nightsnake

Red: Lampropeltis californiae - California Kingsnake

Currently no subspecies of this snake are recognized. This map illustrates the complete range of the species divided into the ranges of the formerly recognized subspecies.

Dark Green: Lampropeltis zonata multicincta  -
Sierra Mountain Kingsnake

Orange: Lampropeltis zonata  multifasciata -
 Coast Mountain Kingsnake

Light Blue: Lampropeltis zonata  parvirubra -
 San Bernardino Mountain Kingsnake

Purple: Lampropeltis zonata pulchra -
 San Diego Mountain Kingsnake

Red: Lampropeltis zonata zonata -
 St. Helena Mountain Kingsnake

Gold: General area of intergradation

Range Map Range Map Range Map
Leaf-nosed Snake Gopher Snake Long-nosed Snake

Red: Phyllorhynchus decurtatus - Leaf-nosed Snake

Purple: Pituophis catenifer affinis -
Sonoran Gopher Snake

Orange: Pituophis catenifer annectens -
San Diego Gopher Snake

Red: Pituophis catenifer catenifer -
Pacific Gopher Snake

Green: Pituophis catenifer deserticola -
Great Basin Gopher Snake

Light Green: Pituophis catenifer pumilis -
Santa Cruz Island Gopher Snake

Gold: General area of intergradation

Red: Rheinocheilus lecontei - Long-nosed Snake
Range Map Range Map Range Map
Patch-nosed Snake Variable Groundsnake Smith's Black-headed Snake

Red: S. h. hexalepis -
 Desert Patch-nosed Snake

Green: S. h. mojavensis -
 Mohave Patch-nosed Snake

Orange: S. h. virgultea -
 Coast Patch-nosed Snake

Violet: Old unconfirmed S. h. virgultea sight record

Red: Sonora semiannulata semiannulata -
Variable Groundsnake

Red: Tantilla hobartsmithi - Smith's Black-headed Snake
Range Map Range Map Range Map
Western Black-headed Snake Aquatic Gartersnake Sierra Gartersnake

Red: Tantilla planiceps - Western Black-headed Snake

Red: Thamnophis atratus atratus -
 Santa Cruz Gartersnake

Green: Thamnophis atratus hydrophilus -
Oregon Gartersnake

Light Blue: Thamnophis atratus zaxanthus -
Diablo Range Gartersnake

Dark Blue: T. a. hydrophilus x T. a. atratus x T. a. zaxanthus Intergrades

Purple: T. a. atratus x T. a. zaxanthus intergrades
 Red: Thamnophis couchii - Sierra Gartersnake
Range Map Range Map Range Map
Terrestrial Gartersnake Giant Gartersnake Two-striped Gartersnake

Red: Thamnophis elegans elegans -
 Mountain Gartersnake

Green: Thamnophis elegans terrestris -
 Coast Gartersnake

Blue: Thamnophis elegans vagrans -
 Wandering Gartersnake

Gold: General area of intergradation

Red: Thamnophis gigas - Giant Gartersnake

Red: Thamnophis hammondii - Two-striped Gartersnake
Range Map Range Map Range Map
Marcy's Checkered Gartersnake Northwestern Gartersnake Common Gartersnake

Red: Thamnophis marcianus marcianus -
Marcy's Checkered Gartersnake

Red: Thamnophis ordinoides - Northwestern Gartersnake

Green: Thamnophis sirtalis fitchi - Valley Gartersnake

Red: Thamnophis sirtalis infernalis -
 California Red-sided Gartersnake

Purple: South Coast Gartersnake

Orange: Thamnophis sirtalis tetrataenia -
San Francisco Gartersnake
Range Map Range Map Range Map
Lyresnake Western Diamond-backed Rattlesnake Sidewinder

Green: Trimorphodon lambda  - Sonoran Lyresnake

Red: Trimorphodon lyrophanes - California Lyresnake

Red: Crotalus atrox - Western Diamond-backed Rattlesnake

Red: Crotalus cerastes cerastes -
Mohave Desert Sidewinder

Green: Crotalus cerastes laterorepens -
Colorado Desert Sidewinder
Range Map Range Map Range Map
Speckled Rattlesnake and Panamint Rattlesnake Western Rattlesnake Red Diamond Rattlesnake

Red: Crotalus mitchellii pyrrhus -
Southwestern Speckled Rattlesnake

Green: Crotalus stephensi -
Panamint Rattlesnake

Green: Crotalus oreganus helleri - Southern Pacific Rattlesnake

Orange: Crotalus oreganus lutosus - Great Basin Rattlesnake

Red: Crotalus oreganus oreganus - Northern Pacific Rattlesnake

Red: Crotalus ruber - Red Diamond Rattlesnake
Range Map Range Map Range Map
Northern Mohave Rattlesnake Western Threadsnake Yellow-bellied Sea Snake

Red: Crotalus scutulatus scutulatus -
Northern Mohave Rattlesnake

Green: Rena humilis cahuilae - Desert Threadsnake

(Leptotyphlops humilis cahuilae - Desert Blindsnake)

Red: Rena humilis humilis - Southwestern Threadsnake

(Leptotyphlops humilis humilis - Southwestern Blindsnake)

Red: Pelamis platurus - Yellow-bellied Sea Snake

Alien Species

Range Map Range Map Range Map
Brahminy Blindsnake Florida Watersnake Northern Watersnake

Red: Ramphotyphlops braminus - Brahminy Blindsnake

(Alien Species)

Red: Nerodia fasciata pictiventris - Florida Watersnake

(Alien Species)

Red: Nerodia sipedon - Northern Watersnake

(Alien Species)

Return to the top

 © 2000 -