This is a List of all of the Different Types of Snakes
Shown on this Web Site from California and Elsewhere

Click on a name link for pictures and information.
If there is more than one page for a species, there are additional links to the right of the scientific name.
This list is alphabetized by genus. Species are listed alphabetically under genus.

Click on a thumbnail to see a larger picture.
Click on "sounds" if present to go to a page where you can listen to the sounds of a species of snake.

Shortcuts to Genus
Scientific Name Common Name Original Description Picture Alternate Name Sounds
Order Squamata Scaled Reptiles (Snakes) Oppel, 1811      
Acrochordus File Snakes Hornstedt, 1787      
Acrochordus arafurae
Arafura File Snake McDowell, 1979 snake Elephant Trunk Snake, Wrinkle File Snake
Agkistrodon American Moccasins Palisot de Beauvois, 1799      
  Agkistrodon contortrix Eastern Copperhead (Linnaeus, 1766) Southern Copperhead Southern Copperhead - Agkistrodon contortrix contortrix  
  Agkistrodon laticinctus Broad-banded Copperhead Gloyd and Conant, 1934 Broad-banded Copperhead Agkistrodon contortrix laticinctus  
Agkistrodon laticinctus x
Agkistrodon contortrix
Eastern Copperhead x
Broad-banded Copperhead
Gloyd, 1969 Osage Copperhead Agkistrodon contortrix phaeogaster - Osage Copperhead  
Agkistrodon piscivorus Cottonmouth (Lacépède, 1789)      
  Agkistrodon piscivorus conanti Florida Cottonmouth Gloyd, 1969 Florida Cottonmouth Agkistrodon conanti  
  Agkistrodon piscivorus leucostoma Western Cottonmouth (Troost, 1836) Western Cottonmouth Northern Cottonmouth -
Agkistrodon piscivorus
Anilios Blind Snakes Gray, 1845      
Anilios grypus
Long-beaked Blind Snake (Waite, 1918) snake Ramphotyphlops grypus

Ramphotyphlops nigroterminatus
Antaresia Children’s Pythons Wells & Wellington, 1984      
Antaresia stimsoni Stimson's Python (Smith, 1985) snake Large-blotched Python
Liasis stimsoni
Arizona Glossy Snakes Kennicott, in Baird, 1859      
Arizona elegans Glossy Snake Kennicott, in Baird, 1859      
  Arizona elegans candida Mohave Glossy Snake Klauber, 1946 Mohave Glossy Snake    
  Arizona elegans eburnata (CA) + (BC) Desert Glossy Snake Klauber, 1946 Desert Glossy Snake    
  Arizona elegans elegans Kansas Glossy Snake Kennicott, in Baird, 1859 Kansas Glossy Snake    
  Arizona elegans occidentalis California Glossy Snake Blanchard, 1924 California Glossy Snake    
  Arizona elegans philipi Painted Desert Glossy Snake Klauber, 1946 Painted Desert Glossy Snake    
Boiga Cat-Eyed Snakes Fitzinger, 1826   Cat Snakes  
Boiga irregularis

Brown Tree Snake (Merrem, 1802) snake Night tiger
Doll's eye snake
Boiga fusca
Bogertophis Desert Ratsnakes Dowling and Price, 1988      
Bogertophis rosaliae (CA) + (BC) Baja California Ratsnake (Mocquard, 1899) Baja Rat Snake    
Bogertophis subocularis Trans-Pecos Ratsnake (Brown, 1901)      
  Bogertophis subocularis subocularis Northern Trans-Pecos Ratsnake (Brown, 1901) Trans-Pecos Ratsnake

Trans-Pecos Ratsnake
Brachyurophis Shovel-nosed Snakes Günther, 1863      
Brachyurophis fasciolatus
Narrow-banded Shovel-nosed Snake   snake Simoselaps fasciolatus  
Brachyurophis incinctus Unbanded Shovel-nosed Snake (Storr, 1968) snake    
Cacophis Crowned Snakes Gunther, 1863      
Cacophis squamulosus Golden-crowned Snake (Dumeril, Bibron & Dumeril, 1854) snake    
Carphophis North American Wormsnakes Gervais, 1843      
Carphophis amoenus Eastern Wormsnake (Say, 1825)      
  Carphophis amoenus amoenus Eastern Wormsnake (Say, 1825) Eastern Wormsnake    
Charina Rubber Boas (Gray 1849)      
Charina bottae (NW) Northern Rubber Boa (Blainville, 1835) Northern Rubber Boa    
Charina bottae (CA) Northern Rubber Boa (Blainville, 1835) Northern Rubber Boa    
Charina umbratica Southern Rubber Boa Klauber, 1943 Southern Rubber Boa     
Chilomeniscus Sandsnakes Cope, 1860   Sonora  
Chilomeniscus stramineus (CA) + BAJA
Variable Sandsnake Cope, 1860 Variable Sandsnake Sonora cincta  
Chionactis Shovel-nosed Snakes Cope, 1860   Sonora  
Chionactis annulata Resplendent Desert Shovel-nosed Snake (Baird, 1859 “1858”)   Formerly Chionactis occipitalis  
  Chionactis annulata annulata (CA) + (BC) Colorado Desert Shovel-nosed Snake (Baird, 1859 “1858”) Colorado Desert Shovel-nosed Snake
Colorado Desert Shovel-nosed Snake
Sonora occipitalis
Formerly Chonactis occiptalis annulata - Colorado Desert Shovel-nosed Snake
  Chionactis annulata klauberi Tucson Shovel-nosed Snake (Stickel, 1941) Tucson Shovel-nosed Snake Sonora annulata
Formerly Chionactis occipitalis klauberi (Stickel, 1941) - Tucson Shovel-nosed Snake
Chionactis occipitalis Mohave Shovel-nosed Snake (Hallowell, 1854) Mohave Shovel-nosed Snake
Nevada Shovel-nosed Snake
Sonora occipitalis
Formerly Chionactis occipitalis occipitalis
(Hallowell, 1854) - Mohave Shovel-nosed Snake and Chionactis occipitalis talpina Klauber, 1951 Nevada Shovel-nosed Snake
Coluber North American Racers,
Coachwhips and Whipsnakes
Linnaeus, 1758   Masticophis  
Coluber bilineatis
Sonoran Whipsnake (Jan, 1863) Sonoran Whipsnake Masticophis bilineatis  
Coluber constrictor North American Racer Linnaeus, 1758      
  Coluber constrictor constrictor Northern Black Racer Linnaeus, 1758 Southern Black Racer    
  Coluber constrictor flaviventris Eastern Yellow-bellied Racer Say, 1823 Eastern Yellow-bellied Racer

Eastern Yellow-bellied Racer
  Coluber constrictor helvigularis Brown-chinned Racer Auffenberg, 1955 Brown-chinned Racer    
  Coluber constrictor mormon (CA) + (NW) Western Yellow-bellied Racer Baird and Girard, 1852 western yellow-bellied racer

western yellow-bellied racer
Coluber mormon  
  Coluber constrictor oaxaca Mexican Racer (Jan, 1863) Mexican Racer    
  Coluber constrictor paludicola Everglades Racer Auffenberg and Babbitt, 1953 Everglades Racer    
  Coluber constrictor priapus Southern Black Racer Dunn and Wood, 1939 Southern Black Racer    
Coluber flagellum Coachwhip Shaw, 1802      
  Coluber flagellum cingulum Sonoran Coachwhip Lowe & Woodin, 1954 Sonoran Whipsnake    
  Coluber flagellum flagellum
Eastern Coachwhip Shaw, 1802 Eastern Coachwhip Masticophis flagellum flagellum  
  Coluber flagellum lineatulus Lined Coachwhip H. M. Smith, 1941 Sonoran Whipsnake    
  Coluber flagellum piceus (CA) + (BC)
Red Racer  (Cope, 1892) Red Racer

Red Racer
Masticophis flagellum piceus
Red Coachwhip
Coluber flagellum ruddocki
San Joaquin Coachwhip (Brattstrom and Warren, 1953) San Joaquin Coachwhip

San Joaquin Coachwhip
Masticophis flagellum ruddocki  
  Coluber flagellum testaceus
Western Coachwhip Say, in James, 1823 Western Coachwhip Masticophis flagellum testaceus  
Coluber fuliginosus (CA) + (BC)
Baja California Coachwhip (Cope, 1895) Baja California Coachwhip
Baja California Coachwhip
Masticophis fuliginosus  
Coluber lateralis Striped Racer (Hallowell, 1853)      
  Coluber lateralis euryxanthus
Alameda Striped Racer (Riemer, 1954) Alameda Striped Racer Masticophis lateralis euryxanthus  
  Coluber lateralis lateralis (CA) + (BC)
California Striped Racer (Hallowell, 1853) California Striped Racer Masticophis lateralis lateralis  
Coluber taeniatus Striped Whipsnake (Hallowell, 1852)      
  Coluber taeniatus taeniatus Desert Striped Whipsnake (Hallowell, 1852) Desert Striped Whipsnake Masticophis taeniatus taeniatus  
Contia Sharp-tailed Snakes Baird and Girard, 1853      
Contia longicauda Forest Sharp-tailed Snake Feldman and Hoyer, 2010 Forest Sharp-tailed Snake    
Contia tenuis(CA) + (NW) Common Sharp-tailed Snake (Baird and Girard, 1852) Sharp-tailed Snake
Sharp-tailed Snake
Crotalus Rattlesnakes Linnaeus, 1758      
Crotalus angelensis
Isla Angel de la Guarda Rattlesnake Klauber, 1963 Isla Angel de la Guarda Rattlesnake    
Crotalus atrox (CA) + (TX) + (SW) Western Diamond-backed Rattlesnake Baird and Girard, 1853 Western Diamond-backed Rattlesnake
Western Diamond-backed Rattlesnake
Crotalus catalinensis
Isla Santa Catalina Rattlesnake Cliff, 1954 Isla Catalina Rattlesnake    
Crotalus cerastes Sidewinder Hallowell, 1854      
  Crotalus cerastes cerastes Mohave Desert Sidewinder Hallowell, 1854 Mohave Desert Sidewinder   Sounds
  Crotalus cerastes cercobombus Sonoran Sidewinder Savage and Cliff, 1953 Sonoran Sidewinder   Sounds
  Crotalus cerastes laterorepens  
(CA) + (BC)
Colorado Desert Sidewinder Klauber, 1944 Colorado Desert Sidewinder    
Crotalus cerberus Arizona Black Rattlesnake (Coues, 1875) Arizona Black Rattlesnake Crotalus oreganus cerberus  
Crotalus enyo Baja California Rattlesnake Cope, 1861 Baja California Rattlesnake    
Crotalus lepidus Rock Rattlesnake (Kennicott, 1861)      
  Crotalus lepidus klauberi Banded Rock Rattlesnake Gloyd, 1936 Banded Rock Rattlesnake   Sounds
  Crotalus lepidus lepidus Mottled Rock Rattlesnake (Kennicott, 1861) Mottled Rock Rattlesnake    
Crotalus mitchellii Speckled Rattlesnake (Cope, 1861)      
  Crotalus mitchellii mitchellii San Lucan Speckled Rattlesnake (Cope, 1861) San Lucan Speckled Rattlesnake    
Crotalus molossus Western Black-tailed Rattlesnake Baird and Girard, 1853 Black-tailed Rattlesnake   Sounds
Crotalus ornatus Eastern Black-tailed Rattlesnake Hallowell, 1854 Black-tailed Rattlesnake    
Crotalus oreganus Western Rattlesnake Holbrook, 1840      
  Crotalus oreganus abyssus Grand Canyon Rattlesnake Klauber, 1930 Grand Canyon Rattlesnake Crotalus abyssus  
  Crotalus oreganus concolor Midget Faded Rattlesnake Woodbury, 1929 Midget Faded Rattlesnake Crotalus concolor  
  Crotalus oreganus helleri   (CA) + (BC) Southern Pacific Rattlesnake Meek, 1905 southern pacific rattlesnake Crotalus helleri Sounds
 Crotalus oreganus lutosus (CA) + (SW)
+ (NW)
Great Basin Rattlesnake Klauber, 1930 great basin rattlesnake Crotalus lutosus  
  Crotalus oreganus oreganus (CA) +  (NW) Northern Pacific Rattlesnake Holbrook, 1840 northern pacific rattlesnake Crotalus oreganus Sounds
Crotalus pricei Twin-spotted Rattlesnake Van Denburgh, 1895      
  Crotalus pricei pricei Western Twin-spotted Rattlesnake Van Denburgh, 1895 Western Twin-spotted Rattlesnake    
Crotalus pyrrhus  (CA) + (SW) + (BC) Southwestern Speckled Rattlesnake (Cope, 1867 “1866”) Speckled Rattlesnake
Speckled Rattlesnake
Crotalus mitchellii pyrrhus  
Crotalus ruber (CA) +  (BC) Red Diamond Rattlesnake Cope, 1892 Red Diamond Rattlesnake    
Crotalus scutulatus Mohave Rattlesnake (Kennicott, 1861)      
  Crotalus scutulatus scutulatus (CA) + (SW) Northern Mohave Rattlesnake (Kennicott, 1861) Northern Mohave Rattlesnake     Sounds
Crotalus stephensi Panamint Rattlesnake Klauber, 1930 Panamint Rattlesnake    
Crotalus tigris Tiger Rattlesnake Kennicott, in Baird, 1859 Tiger Rattlesnake   Sounds
Crotalus viridis Prairie Rattlesnake (Rafinesque, 1818) Green Prairie Rattlesnake

Hopi Rattlesnake

Hopi Rattlesnake
Crotalus viridis viridis
Crotalus viridis nuntius
Crotalus willardi Ridge-nosed Rattlesnake Meek, 1905      
  Crotalus willardi obscurus New Mexico Ridge-nosed Rattlesnake Harris and Simmons, 1976 Arizona Ridge-nosed Rattlesnake    
  Crotalus willardi willardi Arizona Ridge-nosed Rattlesnake Meek, 1905 Arizona Ridge-nosed Rattlesnake   Sounds
Cryptophis Small-eyed Snakes Worrell, 1961   Rhinoplocephalus  
Cryptophis nigrescens Eastern Small-eyed Snake
(Gunther, 1862) snake Rhinoplocephalus nigrescens
Denisonia nigrescens
Demansia Whipsnakes Gunther, 1858      
Demansia psammophis Yellow-Faced Whipsnake (Schlegel, 1837) snake    
Diadophis Ring-necked Snakes Baird and Girard, 1853      
Diadophis punctatus Ring-necked Snake (Linnaeus, 1766)      
  Diadophis punctatus amabilis Pacific Ring-necked Snake Baird and Girard, 1853 Pacific Ring-necked Snake    
  Diadophis punctatus arnyi Prairie Ring-necked Snake Kennicott, 1859 Prairie Ring-necked Snake    
  Diadophis punctatus edwardsii Northern Ring-necked Snake (Merrem, 1820) Northern Ring-necked Snake    
  Diadophis punctatus modestus San Bernardino Ring-necked Snake Bocourt, 1886 San Bernardino Ring-necked Snake    
  Diadophis punctatus occidentalis (CA) + (NW) Northwestern Ring-necked Snake Blanchard, 1923 Northwestern Ring-necked Snake    
  Diadophis punctatus pulchellus Coral-bellied Ring-necked Snake Baird and Girard, 1853 Coral-bellied Ring-necked Snake    
  Diadophis punctatus regalis Regal Ring-necked Snake Baird and Girard, 1853 Regal Ring-necked Snake    
  Diadophis punctatus similis San Diego Ring-necked Snake Blanchard, 1923 San Diego Ring-necked Snake    
  Diadophis punctatus vandenburgii Monterey Ring-necked Snake Blanchard, 1923 Monterey Ring-necked Snake    
Drymarchon Indigo Snakes Fitzinger, 1843      
Drymarchon melanurus Central American Indigo Snake (Duméril, Bibron, and Duméril, 1854)      
 Drymarchon melanurus erebennus Texas Indigo Snake (Cope, 1860) Texas Indigo Snake    
Epicrates Rainbow Boas Wagler, 1830      
Epicrates cenchria Rainbow Boa (Linnaeus, 1758)      
   Epicrates cenchria cenchria Brazilian Rainbow Boa (Linnaeus, 1758) Rough Earth Snake    
Furina Naped Snakes A.M.C. Duméril, 1853      
Furina ornata
Orange-naped Snake (Gray, 1842) snake Moon Snake  
Gyalopian Western Hook-nosed Snakes Cope, 1861      
Gyalopion canum Chihuahuan Hook-nosed Snake Cope, 1861 “1860” Chihuahuan Hook-nosed Snake    
Gyalopion quadrangulare Thornscrub Hook-nosed Snake (Günther, 1893 in Salvin and Godman, 1885-1902) Chihuahuan Hook-nosed Snake    
Heterodon North American Hog-nosed Snakes Latreille, 1801      
Heterodon kennerlyi Mexican Hog-nosed Snake Kennicott, 1860 Mexican Hog-nosed Snake Heterodon kennerlyi  
Hydrophis Seasnakes Daudin, 1803      
Hydrophis platurus Yellow-bellied Seasnake (Linnaeus, 1766) Yellow-bellied Sea Snake Pelamis platurus  
Hypsiglena North American Nightsnakes Cope, 1860      
Hypsiglena chlorophaea Desert Nightsnake Cope, 1860      
  Hypsiglena chlorophaea chlorophaea  Sonoran Nightsnake Cope, 1860 Sonoran Nightsnake Hypsiglena torquata  
  Hypsiglena chlorophaea deserticola  Northern Desert Nightsnake (Tanner, 1944) Northern Desert Nightsnake Hypsiglena torquata  
  Hypsiglena chlorophaea loreala Mesa Verde Night Snake (Tanner, 1944) Mesa Verde Night Snake Hypsiglena torquata  
Hypsiglena jani Chihuahuan Nightsnake (Duges, 1866)      
  Hypsiglena jani texana Texas Nightsnake (Stejneger, 1893) Texas Nightsnake    
Hypsiglena ochrorhyncha Coast Nightsnake Cope, 1860      
  Hypsiglena ochrorhyncha klauberi (CA) + (BC) San Diego Nightsnake Tanner, 1944 San Diego Nightsnake Hypsiglena torquata  
  Hypsiglena ochrorhyncha nuchalata California Nightsnake (Tanner, 1943) California Nightsnake Hypsiglena torquata  
  Hypsiglena ochrorhyncha ochrorhyncha Cape Nightsnake Cope, 1860 Baja California Rattlesnake    
Hypsiglena slevini Baja California Nightsnake Tanner, 1943 Baja California Rattlesnake Eridiphas slevini  
Indotyphlops South Asian Blindsnakes Hedges, Marion, Lipp, Marin, and Vidal, 2014      
Indotyphlops braminus Brahminy Blind Snake (Daudin, 1803) Brahminy Blindsnake Ramphotyphlops braminus,
Island Blind Snake
Hawaiian Blind Snake
Flowerpot Snake
Lampropeltis Kingsnakes Fitzinger, 1843      
Lampropeltis alterna Gray-banded Kingsnake (Brown, 1901) Gray-banded Kingsnake
Gray-banded Kingsnake
Gray-banded Kingsnake
Lampropeltis californiae (CA) + (BC) + (SW) California Kingsnake (Blainville, 1835) california kingsnake
california kingsnake
California Kingsnake
Western Black Kingsnake
Lampropeltis getula californiae  
Lampropeltis gentilis (Misc) (SW) (TX) Western Milksnake Baird and Girard 1853 Milksnake (Intergrade)

Central Plains Milksnake

Red Milksnake
Lampropeltis knoblochi Knobloch's Mountain Kingsnake Taylor, 1940 Arizona Mountain Kingsnake Lampropeltis pyromelana pyromelana - Arizona Mountain Kingsnake  
Lampropeltis multifasciata (CA) + (BC) Coast Mountain Kingsnake Bocourt (1882) San Bernardino Mountain Kingsnake Lampropeltis zonata multimasciata  
Lampropeltis pyromelana Sonoran Mountain Kingsnake (Cope, 1867)      
  Lampropeltis pyromelana pyromelana Arizona Mountain Kingsnake (Cope, 1867)    
Lampropeltis splendida (SW) + (TX) Desert Kingsnake (Baird and Girard, 1853) Desert Kingsnake Lampropeltis getula splendida  
Lampropeltis zonata (CA) + (NW) California Mountain Kingsnake (Lockington ex Blainville, 1876) Sierra Mountain Kingsnake

Sierra Mountain Kingsnake
Lampropeltis zonata multicincta
Lampropeltis zonata zonata
Lichanura Rosy Boas Cope, 1861      
Lichanura orcutti (CA) + (SW) + (BC) Rosy Boa (Stejneger 1889) Rosy Boa

Rosy Boa
Northern Three-lined Boa

Lichanura trivirgata gracia
- Desert Rosy Boa

Lichanura trivirgata roseofusca -
Coastal Rosy Boa
Lichanura trivirgata (BC) + (SW) Three-lined Boa (Cope, 1861) Rosy Boa

Lichanura trivirgata saslowi
Baja Rosy Boa

Lichanura trivirgata trivirgata -
Mexican Rosy Boa
Micruroides Sonoran Coral Snakes Schmidt, 1928      
Micruroides euryxanthus Sonoran Coral Snake (Kennicott, 1860)      
  Micruroides euryxanthus euryxanthus Arizona Coralsnake (Kennicott, 1860) Arizona Coralsnake    
Morelia Carpet Pythons & Relatives Gray, 1842      
Morelia kinghorni Scrub Python (Stull, 1933) snake Amethystine Python
Amethyst Python
Liasis amethistina kinghorni
Morelia amethistina
Morelia spilota Carpet Python (Lacepede, 1804) snake Carpet Snake
Bredl’s Python
Inland Rivers Carpet Python
Python spilotes
Nerodia North American Watersnakes Baird and Girard, 1853      
Nerodia erythrogaster (TX) + (MISC) Plain-bellied Watersnake (Forster, 1771) Plain-bellied Watersnake (former ssp. erythrogaster
Blotched Watersnake
Nerodia fasciata (CA alien) Southern Watersnake (Linnaeus, 1766)      
  Nerodia fasciata pictiventris  (CA alien) + (MISC) Florida Watersnake (Cope, 1895) Southern Watersnake    
Nerodia rhombifer Diamond-backed Watersnake (Hallowell, 1852)      
  Nerodia rhombifer rhombifer Northern Diamond-backed Watersnake (Hallowell, 1852) Northern Diamond-backed Watersnake    
Nerodia sipedon (CA alien) + (MISC) Northern Watersnake (Linnaeus, 1758) Northern Watersnake
Northern Watersnake
Nerodia taxispilota Brown Watersnake (Holbrook, 1838) Brown Watersnake    
Opheodrys Greensnakes Fitzinger, 1843      
Opheodrys vernalis Smooth Greensnake (Harlan, 1827) Smooth Greensnake Liochlorophis vernalis  
Oxybelis American Vinesnakes Wagler, 1830      
Oxybelis aeneus Brown Vinesnake (Wagler, 1824) Brown Vinesnake    
Pantherophis North American Ratsnakes Fitzinger, 1843   Elaphe  
Pantherophis alleghaniensis Eastern Ratsnake (Holbrook, 1836) Eastern Ratsnake Yellow Ratsnake  
Pantherophis bairdi Baird's Ratsnake (Yarrow, in Cope, 1880) Baird's Ratsnake    
Pantherophis emoryi
Great Plains Ratsnake

(Baird and Girard, 1853) Great Plains Ratsnake Elaphe emoryi emoryi & Elaphe emoryi meahllmorum -
Northern Plains Ratsnake & Southern Plains Ratsnake or Southwestern Ratsnake)
Pantherophis guttatus Red Cornsnake (Linnaeus, 1766) Red Cornsnake    
Pantherophis obsoletus (TX) + (MISC)
Western Ratsnake (Say, 1823) Texas Ratsnake
Texas Ratsnake
Texas Ratsnake
Elaphe obsoleta lindenheimeri
Pantherophis spiloides Gray Ratsnake (Duméril, Bibron and Duméril, 1854) Gray Ratsnake    
Parasuta Hooded Snakes Orrell, 1961      
Parasuta monachus
Monk Snake (Storr, 1964) snake Hooded Snake
Suta monachus
Phyllorynchus Leaf-nosed Snakes Stejneger, 1890      
Phyllorynchus browni Saddled Leaf-nosed Snake Stejneger, 1890

Phyllorhynchus decurtatus (CA) + (BC) Spotted Leaf-nosed Snake (Cope, 1868) Spotted Leaf-nosed Snake    
Pituophis Bullsnakes, Pinesnakes,
and Gophersnakes
Holbrook, 1842      
Pituophis catenifer Gophersnake (Blainville, 1835)      
  Pituophis catenifer affinis (CA) + (TX) +  (SW) Sonoran Gophersnake (Hallowell, 1852) Sonoran Gopher Snake    
  Pituophis catenifer annectens (CA) + (BC) San Diego Gophersnake Baird and Girard, 1853 San Diego Gopher Snake    
  Pituophis catenifer catenifer (CA) + (NW) Pacific Gophersnake (Blainville, 1835) Pacific Gopher Snake

Pacific Gopher Snake
  Pituophis catenifer deserticola (CA) + (NW) + (SW) Great Basin Gophersnake Stejneger, 1893 Great Basin Gopher Snake    
  Pituophis catenifer pumilus  Santa Cruz Island GophersSnake Klauber, 1946 Santa Cruz Island Gopher Snake    
  Pituophis catenifer sayi Bullsnake (Schlegel, 1837) Bullsnake    
Pituophis vertebralis Baja California Gophersnake (Blainville, 1835)      
  Pituophis vertebralis bimaris Baja California Gophersnake (Klauber, 1946) Baja California Gopher Snake Mid Baja California Gophersnake
Pituophis catenifer bimaris
  Pituophis vertebralis vertebralis  Cape Gophersnake Hirschkorn & Skubowius, 2011 Baja California Gopher Snake Baja California Gophersnake
Pituophis catenifer vertebralis
Pseudechis Black Snakes Wagler, 1830      
Pseudechis australis Mulga Snake (Gray, 1842) snake King Brown Snake
Naja australis
Pseudechis weigeli
Pygmy Mulga Snake (Wells & Wellington, 1987) snake Weigel’s Black Snake  
Brown Snakes Gunther, 1858      
Pseudonaja mengdeni
Western Brown Snake Wells & Wellington, 1985 snake Mengden’s Brown Snake
Pseudonaja modesta Ringed Brown Snake (Gunther, 1872) snake    
Python Pythons Daudin, 1803      
Python molurus Indian Python (Linnaeus, 1758) python    
Rena Threadsnakes Baird and Girard, 1853   Blindsnakes  
Rena boettgeri (Cape) Threadsnake (Werner 1899) Isla Angel de la Guarda Rattlesnake (Common name unknown)  
Rena dissectus New Mexico Threadsnake (Cope, 1896) New Mexico Threadsnake New Mexico Blindsnake  
Rena dulcis Texas Threadsnake (Baird and Girard, 1853)      
  Rena dulcis dulcis Plains Threadsnake (Baird and Girard, 1853) Plains Threadsnake Plains Blindsnake  
Rena humilis Western Threadsnake (Baird and Girard, 1853)      
  Rena humilis cahuilae  (CA) + (Baja) Desert Threadsnake Klauber, 1931 Desert Threadsnake Leptotyphlops humilis cahuilae
Desert Blind Snake
  Rena humilis humilis Southwestern Threadsnake (Baird and Girard, 1853) Southwestern Threadsnake Leptotyphlops humilis humilis
Southwestern Blind Snake
Rhinocheilus Long-nosed Snakes Baird and Girard, 185      
Rhinocheilus lecontei (CA) + (SW) + (TX) Long-nosed Snake Baird and Girard, 1853 Long-nosed Snake
Long-nosed Snake
Long-nosed Snake
Rhinocheilus lecontei lecontei - Western Long-nosed Snake  
Salvadora Patch-nosed Snakes Baird and Girard, 1853      
Salvadora grahamiae Eastern Patch-nosed Snake Baird and Girard, 1853      
  Salvadora grahamiae grahamiae Mountain Patch-nosed Snake Baird and Girard, 1853 Mountain Patch-nosed Snake    
  Salvadora grahamiaelineata Texas Patch-nosed Snake Schmidt, 1940 Texas Patch-nosed Snake    
Salvadora hexalepis Western Patch-nosed Snake (Cope, 1866)      
  Salvadora hexalepis deserticola Big Bend Patch-nosed Snake Schmidt, 1940 Big Bend Patch-nosed Snake Salvadora deserticola  
  Salvadora hexalepis hexalepis (CA) + (SW) Desert Patch-nosed Snake (Cope, 1866) Desert Patch-nosed Snake    
  Salvadora hexalepis klauberi (BC) Baja California Patch-nosed Snake Bogert, 1945 Baja California Gopher Snake    
  Salvadora hexalepis mojavensis Mohave Patch-nosed Snake Bogert, 1945 Mohave Patch-nosed Snake    
  Salvadora hexalepis virgultea Coast Patch-nosed Snake Bogert, 1935 Coast Patch-nosed Snake    
Senticolis Green Ratsnakes Dowling and Fries, 1987      
Senticolis triaspis Green Ratsnake (Cope, 1866)      
  Senticolis triaspis intermedia Northern Green Ratsnake (Boettger, 1883) Northern Green Ratsnake    
Simoselaps Burrowing Banded Snakes Jan, 1859      
Simoselaps anomalus Desert Banded Snake (Sternfeld, 1919) snake    
Sistrurus Massasauga & Pygmy Rattlesnakes Garman, 1883      
Sistrurus catenatus Massasauga (Rafinesque, 1818)      
  Sistrurus tergeminus edwardsii
Desert Massasauga (Baird and Girard, 1853) Desert Massasauga Sistrurus catenatus edwardsii  
Sonora North American Groundsnakes Baird and Girard, 1853      
Sonora semiannulata Western Groundsnake Baird and Girard, 1853      
  Sonora semiannulata (TX)
(includes Sonora episcopa)
Western Groundsnake Baird and Girard, 1853 ground snake    
  Sonora semiannulata semiannulata  (CA) + (BC) Variable Groundsnake Baird and Girard, 1853 Variable Groundsnake
variable groundsnake
Variable Groundsnake
Spalerosophis   Jan, 1865      
Spalerosophis diadema Royal Diadem Ratsnake
(SCHLEGEL 1837) Royal Diadem Ratsnake  Black-headed Royal Snake  
Slaty Snakes Dumeril, Bibron & Dumeril, 1854    
Stegonotus cucullatus Slaty-grey Snake (Dumeril, Bibron & Dumeril, 1854) snake    
Storeria North American Brownsnakes Baird and Girard, 1853      
Storeria dekayi Dekay's Brownsnake (Holbrook, 1836)      
  Storeria dekayi texana Texas Brownsnake Trapido, 1944 Texas Brownsnake    
Tantilla Black-headed, Crowned,
and Flat-headed Snakes
Baird and Girard, 1853      
Tantilla gracilis Flat-headed Snake Baird and Girard, 1853 snake    
Tantilla hobartsmithi (CA) + (SW) Smith's Black-headed Snake Taylor, 1937 Smith's Black-headed Snake    
Tantilla nigriceps Plains Black-headed Snake Kennicott, 1860 Plains Black-headed Snake    
Tantilla planiceps Western Black-headed Snake (Blainville, 1835) Western Black-headed Snake    
Tantilla wilcoxi Chihuahuan Black-headed Snake Stejneger, 1903 Chihuahuan Black-headed Snake    
Thamnophis North American Gartersnakes Fitzinger, 1843      
Thamnophis atratus Aquatic Gartersnake (Kennicott, 1860)      
  Thamnophis atratus atratus Santa Cruz Gartersnake (Kennicott, 1860) Santa Cruz Gartersnake    
  Thamnophis atratus hydrophilus (CA) + (NW) Oregon Gartersnake Fitch, 1936 Oregon Gartersnake    
  Thamnophis atratus zaxanthus Diablo Range Gartersnake Boundy, 1999 Diablo Range Gartersnake    
Thamnophis couchii Sierra Gartersnake (Kennicott, 1859) Sierra Gartersnake    
Thamnophis cyrtopsis Black-necked Gartersnake (Kennicott, 1860)      
  Thamnophis cyrtopsis cyrtopsis Western Black-necked Gartersnake (Kennicott, 1860) Western Black-necked Gartersnake    
  Thamnophis cyrtopsis ocellatus Eastern Black-necked Gartersnake (Cope, 1880) Eastern Black-necked Gartersnake    
Thamnophis elegans Western Terrestrial Gartersnake (Baird and Girard, 1853) Mountain Gartersnake    
  Thamnophis elegans elegans Mountain Gartersnake (Baird and Girard, 1853) Mountain Gartersnake    
  Thamnophis elegans terrestris Coast Gartersnake Fox, 1951 Coast Gartersnake

Coast Gartersnake
  Thamnophis elegans vagrans (CA) + (NW) + (SW) Wandering Gartersnake (Baird and Girard, 1853) Wandering Gartersnake
Wandering Gartersnake
Thamnophis gigas Giant Gartersnake Fitch, 1940 Giant Gartersnake    
Thamnophis hammondii  (CA) + (BC) Two-striped Gartersnake (Kennicott, 1860 ) Two-striped Gartersnake    
Thamnophis marcianus Checkered Gartersnake (Baird and Girard, 1853)      
  Thamnophis marcianus marcianus (CA) + (TX) +
Marcy's Checkered Gartersnake (Baird and Girard, 1853) Marcy's Checkered Gartersnake    
Thamnophis ordinoides (CA) + (NW) Northwestern Gartersnake (Baird and Girard, 1852) Northwestern Gartersnake
Northwestern Gartersnake
nw gartersnake
Northwestern Gartersnake
Thamnophis proximus Western Ribbonsnake (Say, 1823)      
  Thamnophis proximus orarius Gulf Coast Ribbon Snake Rossman, 1963 Gulf Coast Ribbon Snake    
  Thamnophis proximus rubrilineatus Red-striped Ribbon Snake Rossman, 1963 Red-striped Ribbon Snake    
Thamnophis rufipunctatus Narrow-headed Gartersnake (Cope, 1875) Narrow-headed Gartersnake    
Thamnophis sauritus Eastern Ribbonsnake (Linnaeus, 1766)      
  Thamnophis sauritus sackenii Peninsula Ribbonsnake (Kennicott, 1859) Peninsula Ribbonsnake    
Thamnophis sirtalis Common Gartersnake (Linnaeus, 1758)      
  Thamnophis sirtalis concinnus Red-spotted Gartersnake (Hallowell, 1852) Red-spotted Gartersnake    
  Thamnophis sirtalis fitchi (CA) + (NW) Valley Gartersnake Fox, 1951 Valley Gartersnake    
  Thamnophis sirtalis infernalis California Red-sided Gartersnake (Blainville, 1835) California Red-sided Gartersnake South Coast Gartersnake -
  Thamnophis sirtalis parietalis Red-sided Gartersnake (Say, 1823) Eastern Gartersnake    
  Thamnophis sirtalis pickeringii Puget Sound Gartersnake (Baird and Girard, 1853) Puget Sound Gartersnake    
  Thamnophis sirtalis sirtalis Eastern Gartersnake (Linnaeus, 1758) Eastern Gartersnake    
  Thamnophis sirtalis tetrataenia San Francisco Gartersnake (Cope, 1875) San Francisco Gartersnake    
Thamnophis valida West Coast Gartersnake (Kennicott, 1860)      
  Thamnophis valida celaeno West Coast Gartersnake (Cope, 1860) West Coast Gartersnake Cape Gartersnake  
Trimorphodon Lyresnakes Cope, 1861      
Trimorphodon lambda (CA) + (SW) Sonoran Lyresnake Cope, 1886 Sonoran Lyresnake    
Trimorphodon lyrophanes (CA) + (BC) California Lyresnake (Cope, 1860) California Lyresnake    
Keelback Jan, 1863      
Tropidonophis mairii Keelback (Gray, 1841) snake Freshwater Snake
Natrix mairii
Aphibiesma mairii
Styporhynchus mairii
Virginia North American Earthsnakes Baird and Girard, 1853      
Virginia striatula Rough Earth Snake (Linnaeus, 1766)    
If a snake is listed more than once, one of the symbols below will be added to indicate which region the listing covers.

AU = Australia
CA = California page
BC = Baja California page
NW = Northwest page
TX = Texas page
SW = Southwest Page
MISC = Any areas not listed above

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