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 "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 Alternate Name Sounds
Order Squamata Scaled Reptiles (Snakes) Oppel, 1811    
Acrochordus File Snakes Hornstedt, 1787    
Acrochordus arafurae
Arafura File Snake McDowell, 1979 Elephant Trunk Snake, Wrinkle File Snake
Agkistrodon American Moccasins Palisot de Beauvois, 1799    
  Agkistrodon contortrix Eastern Copperhead (Linnaeus, 1766) Southern Copperhead - Agkistrodon contortrix contortrix  
  Agkistrodon laticinctus Broad-banded Copperhead Gloyd and Conant, 1934 Agkistrodon contortrix laticinctus  
Agkistrodon laticinctus x Agkistrodon contortrix Eastern Copperhead x Broad-banded Copperhead Hybrids Gloyd, 1969 Agkistrodon contortrix phaeogaster - Osage Copperhead  
Agkistrodon piscivorus Cottonmouth (Lacépède, 1789)    
  Agkistrodon piscivorus conanti Florida Cottonmouth Gloyd, 1969 Agkistrodon conanti  
  Agkistrodon piscivorus leucostoma Western Cottonmouth (Troost, 1836) Northern Cottonmouth -
Agkistrodon piscivorus
Anilios Blind Snakes Gray, 1845    
Anilios grypus
Long-beaked Blind Snake (Waite, 1918) Ramphotyphlops grypus
Ramphotyphlops nigroterminatus
Antaresia Children’s Pythons Wells & Wellington, 1984    
Antaresia stimsoni Stimson's Python (Smith, 1985) 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    
  Arizona elegans eburnata (CA) + (BC) Desert Glossy Snake Klauber, 1946    
  Arizona elegans elegans Kansas Glossy Snake Kennicott, in Baird, 1859    
  Arizona elegans occidentalis California Glossy Snake Blanchard, 1924    
  Arizona elegans philipi Painted Desert Glossy Snake Klauber, 1946    
Boiga Cat-Eyed Snakes Fitzinger, 1826 Cat Snakes  
Boiga irregularis

Brown Tree Snake (Merrem, 1802) Night tiger
Doll's eye snake
Boiga fusca
Bogertophis Desert Ratsnakes Dowling and Price, 1988    
Bogertophis rosaliae (CA) + (BC) Baja California Ratsnake (Mocquard, 1899)    
Bogertophis subocularis Trans-Pecos Ratsnake (Brown, 1901)    
  Bogertophis subocularis subocularis Northern Trans-Pecos Ratsnake (Brown, 1901)    
Brachyurophis Shovel-nosed Snakes Günther, 1863    
Brachyurophis fasciolatus
Narrow-banded Shovel-nosed Snake   Simoselaps fasciolatus  
Brachyurophis incinctus Unbanded Shovel-nosed Snake (Storr, 1968)    
Cacophis Crowned Snakes Gunther, 1863    
Cacophis squamulosus Golden-crowned Snake (Dumeril, Bibron & Dumeril, 1854)    
Carphophis North American Wormsnakes Gervais, 1843    
Carphophis amoenus Eastern Wormsnake (Say, 1825)    
  Carphophis amoenus amoenus Eastern Wormsnake (Say, 1825)    
Charina Rubber Boas (Gray 1849)    
Charina bottae (NW) Northern Rubber Boa (Blainville, 1835)    
Charina bottae (CA) Northern Rubber Boa (Blainville, 1835)    
Charina umbratica Southern Rubber Boa Klauber, 1943    
Chilomeniscus Sandsnakes Cope, 1860 Sonora  
Chilomeniscus stramineus (CA) + BAJA
Variable Sandsnake Cope, 1860 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”) Sonora occipitalis
Formerly Chonactis occiptalis annulata - Colorado Desert Shovel-nosed Snake
  Chionactis annulata klauberi Tucson Shovel-nosed Snake (Stickel, 1941) Sonora annulata
Formerly Chionactis occipitalis klauberi (Stickel, 1941) - Tucson Shovel-nosed Snake
Chionactis occipitalis Mohave Shovel-nosed Snake (Hallowell, 1854) 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) Masticophis bilineatis  
Coluber constrictor North American Racer Linnaeus, 1758    
  Coluber constrictor constrictor Northern Black Racer Linnaeus, 1758    
  Coluber constrictor flaviventris Eastern Yellow-bellied Racer Say, 1823    
  Coluber constrictor helvigularis Brown-chinned Racer Auffenberg, 1955    
  Coluber constrictor mormon (CA) + (NW) Western Yellow-bellied Racer Baird and Girard, 1852 Coluber mormon  
  Coluber constrictor oaxaca Mexican Racer (Jan, 1863)    
  Coluber constrictor paludicola Everglades Racer Auffenberg and Babbitt, 1953    
  Coluber constrictor priapus Southern Black Racer Dunn and Wood, 1939    
Coluber flagellum Coachwhip Shaw, 1802    
  Coluber flagellum cingulum Sonoran Coachwhip Lowe & Woodin, 1954    
  Coluber flagellum flagellum
Eastern Coachwhip Shaw, 1802 Masticophis flagellum flagellum  
  Coluber flagellum lineatulus Lined Coachwhip H. M. Smith, 1941    
  Coluber flagellum piceus (CA) + (BC)
Red Racer  (Cope, 1892) Masticophis flagellum piceus
Red Coachwhip
  Coluber flagellum ruddocki
San Joaquin Coachwhip (Brattstrom and Warren, 1953) Masticophis flagellum ruddocki  
  Coluber flagellum testaceus
Western Coachwhip Say, in James, 1823 Masticophis flagellum testaceus  
Coluber fuliginosus (CA) + (BC)
Baja California Coachwhip (Cope, 1895) Masticophis fuliginosus  
Coluber lateralis Striped Racer (Hallowell, 1853)    
  Coluber lateralis euryxanthus
Alameda Striped Racer (Riemer, 1954) Masticophis lateralis euryxanthus  
  Coluber lateralis lateralis (CA) + (BC)
California Striped Racer (Hallowell, 1853) Masticophis lateralis lateralis  
Coluber taeniatus Striped Whipsnake (Hallowell, 1852)    
  Coluber taeniatus taeniatus Desert Striped Whipsnake (Hallowell, 1852) Masticophis taeniatus taeniatus  
Contia Sharp-tailed Snakes Baird and Girard, 1853    
Contia longicauda Forest Sharp-tailed Snake Feldman and Hoyer, 2010    
Contia tenuis CA) + (NW) Common Sharp-tailed Snake (Baird and Girard, 1852)    
Crotalus Rattlesnakes Linnaeus, 1758    
Crotalus angelensis
Isla Angel de la Guarda Rattlesnake Klauber, 1963    
Crotalus atrox (CA) + (TX) + (SW) Western Diamond-backed Rattlesnake Baird and Girard, 1853   Sounds
Crotalus catalinensis
Isla Santa Catalina Rattlesnake Cliff, 1954    
Crotalus cerastes Sidewinder Hallowell, 1854    
  Crotalus cerastes cerastes Mohave Desert Sidewinder Hallowell, 1854   Sounds
  Crotalus cerastes cercobombus Sonoran Sidewinder Savage and Cliff, 1953   Sounds
  Crotalus cerastes laterorepens  (CA) + (BC) Colorado Desert Sidewinder Klauber, 1944    
Crotalus cerberus Arizona Black Rattlesnake (Coues, 1875) Crotalus oreganus cerberus  
Crotalus enyo Baja California Rattlesnake Cope, 1861    
Crotalus lepidus Rock Rattlesnake (Kennicott, 1861)    
  Crotalus lepidus klauberi Banded Rock Rattlesnake Gloyd, 1936   Sounds
  Crotalus lepidus lepidus Mottled Rock Rattlesnake (Kennicott, 1861)    
Crotalus mitchellii Speckled Rattlesnake (Cope, 1861)    
  Crotalus mitchellii mitchellii San Lucan Speckled Rattlesnake (Cope, 1861)    
Crotalus molossus Western Black-tailed Rattlesnake Baird and Girard, 1853   Sounds
Crotalus ornatus Eastern Black-tailed Rattlesnake Hallowell, 1854    
Crotalus oreganus Western Rattlesnake Holbrook, 1840    
  Crotalus oreganus abyssus Grand Canyon Rattlesnake Klauber, 1930 Crotalus abyssus  
  Crotalus oreganus concolor Midget Faded Rattlesnake Woodbury, 1929 Crotalus concolor  
  Crotalus oreganus helleri   (CA) + (BC) Southern Pacific Rattlesnake Meek, 1905 Crotalus helleri Sounds
  Crotalus oreganus lutosus (CA) + (SW) + (NW) Great Basin Rattlesnake Klauber, 1930 Crotalus lutosus  
  Crotalus oreganus oreganus (CA) +  (NW) Northern Pacific Rattlesnake Holbrook, 1840 Crotalus oreganus Sounds
Crotalus pricei Twin-spotted Rattlesnake Van Denburgh, 1895    
  Crotalus pricei pricei Western Twin-spotted Rattlesnake Van Denburgh, 1895    
Crotalus pyrrhus  (CA) + (SW) + (BC) Southwestern Speckled Rattlesnake (Cope, 1867 “1866”) Crotalus mitchellii pyrrhus  
Crotalus ruber (CA) +  (BC) Red Diamond Rattlesnake Cope, 1892    
Crotalus scutulatus Mohave Rattlesnake (Kennicott, 1861)    
  Crotalus scutulatus scutulatus Northern Mohave Rattlesnake (Kennicott, 1861)   Sounds
Crotalus stephensi Panamint Rattlesnake Klauber, 1930    
Crotalus tigris Tiger Rattlesnake Kennicott, in Baird, 1859   Sounds
Crotalus viridis Prairie Rattlesnake (Rafinesque, 1818) 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    
  Crotalus willardi willardi Arizona Ridge-nosed Rattlesnake Meek, 1905   Sounds
Cryptophis Small-eyed Snakes Worrell, 1961    
Cryptophis nigrescens Eastern Small-eyed Snake
(Gunther, 1862) Rhinoplocephalus nigrescens
Denisonia nigrescens
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    
  Diadophis punctatus arnyi Prairie Ring-necked Snake Kennicott, 1859    
  Diadophis punctatus edwardsii Northern Ring-necked Snake (Merrem, 1820)    
  Diadophis punctatus modestus San Bernardino Ring-necked Snake Bocourt, 1886    
  Diadophis punctatus occidentalis (CA) + (NW) Northwestern Ring-necked Snake Blanchard, 1923    
  Diadophis punctatus pulchellus Coral-bellied Ring-necked Snake Baird and Girard, 1853    
  Diadophis punctatus regalis Regal Ring-necked Snake Baird and Girard, 1853    
  Diadophis punctatus similis San Diego Ring-necked Snake Blanchard, 1923    
  Diadophis punctatus vandenburgii Monterey Ring-necked Snake Blanchard, 1923    
Demansia Whipsnakes Gunther, 1858    
Demansia psammophis Yellow-Faced Whipsnake (Schlegel, 1837)    
Drymarchon Indigo Snakes Fitzinger, 1843    
Drymarchon melanurus Central American Indigo Snake (Duméril, Bibron, and Duméril, 1854)    
 Drymarchon melanurus erebennus Texas Indigo Snake (Cope, 1860)    
Epicrates Rainbow Boas Wagler, 1830    
Epicrates cenchria Rainbow Boa (Linnaeus, 1758)    
   Epicrates cenchria cenchria Brazilian Rainbow Boa (Linnaeus, 1758)    
Furina Naped Snakes A.M.C. Duméril, 1853    
Furina ornata
Orange-naped Snake (Gray, 1842) Moon Snake  
Gyalopian Western Hook-nosed Snakes Cope, 1861    
Gyalopion canum Chihuahuan Hook-nosed Snake Cope, 1861 “1860”    
Gyalopion quadrangulare Thornscrub Hook-nosed Snake (Günther, 1893 in Salvin and Godman, 1885-1902)    
Heterodon North American Hog-nosed Snakes Latreille, 1801    
Heterodon kennerlyi Mexican Hog-nosed Snake Kennicott, 1860 Heterodon kennerlyi  
Hydrophis Sea Snakes Latreille ex Sonnini and Latreille, 1801    
Hydrophis platurus Yellow-bellied Seasnake (Linnaeus, 1766) Pelamis platurus  
Hypsiglena North American Nightsnakes Cope, 1860    
Hypsiglena chlorophaea Desert Nightsnake Cope, 1860    
  Hypsiglena chlorophaea chlorophaea  Sonoran Nightsnake Cope, 1860 Hypsiglena torquata  
  Hypsiglena chlorophaea deserticola  Northern Desert Nightsnake (Tanner, 1944) Hypsiglena torquata  
  Hypsiglena chlorophaea loreala Mesa Verde Night Snake (Tanner, 1944) Hypsiglena torquata  
Hypsiglena jani Chihuahuan Nightsnake (Duges, 1866)    
  Hypsiglena jani texana Texas Nightsnake (Stejneger, 1893)    
Hypsiglena ochrorhyncha Coast Nightsnake Cope, 1860    
  Hypsiglena ochrorhyncha klauberi (CA) + (BC) San Diego Nightsnake Tanner, 1944 Hypsiglena torquata  
  Hypsiglena ochrorhyncha nuchalata California Nightsnake (Tanner, 1943) Hypsiglena torquata  
  Hypsiglena ochrorhyncha ochrorhyncha Cape Nightsnake Cope, 1860    
Hypsiglena slevini Baja California Nightsnake Tanner, 1943 Eridiphas slevini  
Indotyphlops South Asian Blindsnakes Hedges, Marion, Lipp, Marin, and Vidal, 2014    
Indotyphlops braminus Brahminy Blind Snake (Daudin, 1803) Ramphotyphlops braminus
Island Blind Snake
Hawaiian Blind Snake
Flowerpot Snake
Lampropeltis Kingsnakes Fitzinger, 1843    
Lampropeltis alterna Gray-banded Kingsnake (Brown, 1901)    
Lampropeltis californiae (CA) + (BC) + (SW) California Kingsnake (Blainville, 1835) Lampropeltis getula californiae  
Lampropeltis gentilis (Misc) (SW) (TX) Western Milksnake Baird and Girard 1853    
Lampropeltis knoblochi Knobloch's Mountain Kingsnake Taylor, 1940 Lampropeltis pyromelana pyromelana - Arizona Mountain Kingsnake  
Lampropeltis multifasciata (CA) + (BC) Coast Mountain Kingsnake Bocourt (1882)    
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) Lampropeltis getula splendida  
Lampropeltis zonata (CA) + (NW) California Mountain Kingsnake (Lockington ex Blainville, 1876)    
Lichanura Rosy Boas Cope, 1861    
Lichanura orcutti (CA) + (SW) + (BC) Rosy Boa (Stejneger 1889) 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)    
Morelia Carpet Pythons & Relatives Gray, 1842    
Morelia kinghorni Scrub Python (Stull, 1933)    
Morelia spilota Carpet Python (Lacepede, 1804) 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) (former ssp. erythrogaster
Blotched Watersnake
Nerodia fasciata (CA alien) Southern Watersnake (Linnaeus, 1766)    
  Nerodia fasciata pictiventris  (CA alien) + (MISC) Florida Watersnake (Cope, 1895)    
Nerodia rhombifer Diamond-backed Watersnake (Hallowell, 1852)    
  Nerodia rhombifer rhombifer Northern Diamond-backed Watersnake (Hallowell, 1852)    
Nerodia sipedon (CA alien) + (MISC) Northern Watersnake (Linnaeus, 1758)    
Nerodia taxispilota Brown Watersnake (Holbrook, 1838)    
Opheodrys Greensnakes Fitzinger, 1843    
Opheodrys vernalis Smooth Greensnake (Harlan, 1827) Liochlorophis vernalis  
Oxybelis American Vinesnakes Wagler, 1830    
Oxybelis aeneus Brown Vinesnake (Wagler, 1824)    
Pantherophis North American Ratsnakes Fitzinger, 1843 Elaphe  
Pantherophis alleghaniensis Eastern Ratsnake (Holbrook, 1836) Yellow Ratsnake  
Pantherophis bairdi Baird's Ratsnake (Yarrow, in Cope, 1880)    
Pantherophis emoryi
Great Plains Ratsnake

(Baird and Girard, 1853) Elaphe emoryi emoryi & Elaphe emoryi meahllmorum -
Northern Plains Ratsnake & Southern Plains Ratsnake or Southwestern Ratsnake)
Pantherophis guttatus Red Cornsnake (Linnaeus, 1766)    
Pantherophis obsoletus (TX) + (MISC)
Western Ratsnake (Say, 1823) Texas Ratsnake
Elaphe obsoleta lindenheimeri
Pantherophis spiloides Gray Ratsnake (Duméril, Bibron and Duméril, 1854)    
Parasuta Hooded Snakes Orrell, 1961    
Parasuta monachus
Monk Snake (Storr, 1964) 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)    
Pituophis Bullsnakes, Pinesnakes,
and Gophersnakes
Holbrook, 1842    
Pituophis catenifer Gophersnake (Blainville, 1835)    
  Pituophis catenifer affinis (CA) + (TX) +  (SW) Sonoran Gophersnake (Hallowell, 1852)    
  Pituophis catenifer annectens (CA) + (BC) San Diego Gophersnake Baird and Girard, 1853    
  Pituophis catenifer catenifer (CA) + (NW) Pacific Gophersnake (Blainville, 1835)   Sounds
  Pituophis catenifer deserticola (CA) + (NW) + (SW) Great Basin Gophersnake Stejneger, 1893    
  Pituophis catenifer pumilus  Santa Cruz Island GophersSnake Klauber, 1946    
  Pituophis catenifer sayi Bullsnake (Schlegel, 1837)    
Pituophis vertebralis Baja California Gophersnake (Blainville, 1835)    
  Pituophis vertebralis bimaris Baja California Gophersnake (Klauber, 1946) Mid Baja California Gophersnake
Pituophis catenifer bimaris
  Pituophis vertebralis vertebralis  Cape Gophersnake Hirschkorn & Skubowius, 2011 Baja California Gophersnake
Pituophis catenifer vertebralis
Pseudechis Black Snakes Wagler, 1830    
Pseudechis australis Mulga Snake (Gray, 1842) King Brown Snake, Naja australis  
Pseudechis weigeli
Pygmy Mulga Snake (Wells & Wellington, 1987)    
Brown Snakes Gunther, 1858    
Pseudonaja mengdeni
Western Brown Snake Wells & Wellington, 1985 Mengden’s Brown Snake, Gwardar  
Pseudonaja modesta Ringed Brown Snake (Gunther, 1872)    
Python Pythons Daudin, 1803    
Python molurus Indian Python (Linnaeus, 1758)    
Rena Threadsnakes Baird and Girard, 1853 Blindsnakes  
Rena boettgeri (Cape) Threadsnake (Werner 1899) (Common name unknown)  
Rena dissectus New Mexico Threadsnake (Cope, 1896) New Mexico Blindsnake  
Rena dulcis Texas Threadsnake (Baird and Girard, 1853)    
  Rena dulcis dulcis Plains Threadsnake (Baird and Girard, 1853) Plains Blindsnake  
Rena humilis Western Threadsnake (Baird and Girard, 1853)    
  Rena humilis cahuilae  (CA) + (Baja) Desert Threadsnake Klauber, 1931 Leptotyphlops humilis cahuilae
Desert Blind Snake
  Rena humilis humilis Southwestern Threadsnake (Baird and Girard, 1853) 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 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    
  Salvadora grahamiaelineata Texas Patch-nosed Snake Schmidt, 1940    
Salvadora hexalepis Western Patch-nosed Snake (Cope, 1866)    
  Salvadora hexalepis deserticola Big Bend Patch-nosed Snake Schmidt, 1940 Salvadora deserticola  
  Salvadora hexalepis hexalepis (CA) + (SW) Desert Patch-nosed Snake (Cope, 1866)    
  Salvadora hexalepis klauberi (BC) Baja California Patch-nosed Snake Bogert, 1945    
  Salvadora hexalepis mojavensis Mohave Patch-nosed Snake Bogert, 1945    
  Salvadora hexalepis virgultea Coast Patch-nosed Snake Bogert, 1935    
Senticolis Green Ratsnakes Dowling and Fries, 1987    
Senticolis triaspis Green Ratsnake (Cope, 1866)    
  Senticolis triaspis intermedia Northern Green Ratsnake (Boettger, 1883)    
Simoselaps Burrowing Banded Snakes Jan, 1859    
Simoselaps anomalus Desert Banded Snake (Sternfeld, 1919)    
Sistrurus Massasauga & Pygmy Rattlesnakes Garman, 1883    
Sistrurus catenatus Massasauga (Rafinesque, 1818)    
  Sistrurus tergeminus edwardsii
Desert Massasauga (Baird and Girard, 1853) 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    
  Sonora semiannulata semiannulata  (CA) + (BC) Variable Groundsnake Baird and Girard, 1853    
Spalerosophis   Jan, 1865    
Spalerosophis diadema Royal Diadem Ratsnake
(SCHLEGEL 1837) Black-headed Royal Snake  
Slaty Snakes Dumeril, Bibron & Dumeril, 1854    
Stegonotus cucullatus Slaty-grey Snake (Dumeril, Bibron & Dumeril, 1854)    
Storeria North American Brownsnakes Baird and Girard, 1853    
Storeria dekayi Dekay's Brownsnake (Holbrook, 1836)    
  Storeria dekayi texana Texas Brownsnake Trapido, 1944    
Suta Stitched Snakes Worrell, 1961    
Suta suta Curl Snake (Peters, 1863)    
Tantilla Black-headed, Crowned, and Flat-headed Snakes Baird and Girard, 1853    
Tantilla gracilis Flat-headed Snake Baird and Girard, 1853    
Tantilla hobartsmithi (CA) + (SW) Smith's Black-headed Snake Taylor, 1937    
Tantilla nigriceps Plains Black-headed Snake Kennicott, 1860    
Tantilla planiceps Western Black-headed Snake (Blainville, 1835)    
Tantilla wilcoxi Chihuahuan Black-headed Snake Stejneger, 1903    
Thamnophis North American Gartersnakes Fitzinger, 1843    
Thamnophis atratus Aquatic Gartersnake (Kennicott, 1860)    
  Thamnophis atratus atratus Santa Cruz Gartersnake (Kennicott, 1860)    
  Thamnophis atratus hydrophilus (CA) + (NW) Oregon Gartersnake Fitch, 1936    
  Thamnophis atratus zaxanthus Diablo Range Gartersnake Boundy, 1999    
Thamnophis couchii Sierra Gartersnake (Kennicott, 1859)    
Thamnophis cyrtopsis Black-necked Gartersnake (Kennicott, 1860)    
  Thamnophis cyrtopsis cyrtopsis Western Black-necked Gartersnake (Kennicott, 1860)    
  Thamnophis cyrtopsis ocellatus Eastern Black-necked Gartersnake (Cope, 1880)    
Thamnophis elegans Western Terrestrial Gartersnake (Baird and Girard, 1853)    
  Thamnophis elegans elegans Mountain Gartersnake (Baird and Girard, 1853)    
  Thamnophis elegans terrestris Coast Gartersnake Fox, 1951    
  Thamnophis elegans vagrans (CA) + (NW) + (SW) Wandering Gartersnake (Baird and Girard, 1853)    
Thamnophis gigas Giant Gartersnake Fitch, 1940    
Thamnophis hammondii  (CA) + (BC) Two-striped Gartersnake (Kennicott, 1860 )    
Thamnophis marcianus Checkered Gartersnake (Baird and Girard, 1853)    
  Thamnophis marcianus marcianus (CA) + (TX) +
Marcy's Checkered Gartersnake (Baird and Girard, 1853)    
Thamnophis ordinoides (CA) + (NW) Northwestern Gartersnake (Baird and Girard, 1852)    
Thamnophis proximus Western Ribbonsnake (Say, 1823)    
  Thamnophis proximus orarius Gulf Coast Ribbon Snake Rossman, 1963    
  Thamnophis proximus rubrilineatus Red-striped Ribbon Snake Rossman, 1963    
Thamnophis rufipunctatus Narrow-headed Gartersnake (Cope, 1875)    
Thamnophis sauritus Eastern Ribbonsnake (Linnaeus, 1766)    
  Thamnophis sauritus sackenii Peninsula Ribbonsnake (Kennicott, 1859)    
Thamnophis sirtalis Common Gartersnake (Linnaeus, 1758)    
  Thamnophis sirtalis concinnus Red-spotted Gartersnake (Hallowell, 1852)    
  Thamnophis sirtalis fitchi (CA) + (NW) Valley Gartersnake Fox, 1951    
  Thamnophis sirtalis infernalis California Red-sided Gartersnake (Blainville, 1835) South Coast Gartersnake - Thamnophis ssp  
  Thamnophis sirtalis parietalis Red-sided Gartersnake (Say, 1823)    
  Thamnophis sirtalis pickeringii Puget Sound Gartersnake (Baird and Girard, 1853)    
  Thamnophis sirtalis sirtalis Eastern Gartersnake (Linnaeus, 1758)    
  Thamnophis sirtalis tetrataenia San Francisco Gartersnake (Cope, 1875)    
Thamnophis valida West Coast Gartersnake (Kennicott, 1860)    
  Thamnophis valida celaeno West Coast Gartersnake (Cope, 1860) Cape Gartersnake  
Trimorphodon Lyresnakes Cope, 1861    
Trimorphodon lambda (CA) + (SW) Sonoran Lyresnake Cope, 1886    
Trimorphodon lyrophanes (CA) + (BC) California Lyresnake (Cope, 1860)    
Keelback Jan, 1863    
Tropidonophis mairii Keelback (Gray, 1841) 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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