Colubrid Snakes
Family Colubridae Subfamily Colubrinae

• Arizona elegans - Glossy Snake
  1. Subspecies: Arizona elegans philipi - Painted Desert Glossy Snake
     • Head Detail: Arizona elegans philipi - Painted Desert Glossy Snake

• Bogertophis subocularis - Trans-Pecos Rat Snake

• Coluber constrictor - Racer
  1. Subspecies: Coluber constrictor flaviventris - Eastern Yellow-Bellied Racer

• Elaphe (Pantherophis) emoryi - Great Plains Rat Snake

• Elaphe (Pantherophis) guttata - Corn Snake
  1. Subspecies: Elaphe (Pantherophis) guttata meahllmorum - Southwestern Rat Snake

• Gyalopion canum - Chihuahuan (Western) Hook-Nosed Snake
  • Photo 1: Gyalopion canum - Chihuahuan (Western) Hook-Nosed Snake

• Lampropeltis alterna - Gray-Banded Kingsnake
  1. Variation #1: Alterna Phase - NEW PHOTO

• Lampropeltis getula - Common Kingsnake
  1. Subspecies: Lampropeltis getula splendida - Desert Kingsnake

• Lampropeltis pyromelana - Sonoran Mountain Kingsnake
  1. Subspecies: Lampropeltis pyromelana pyromelana - Arizona Mountain Kingsnake (Cochise County, Arizona) - NEW PHOTO

• Lampropeltis triangulum - Milksnake
  1. Subspecies: Lampropeltis triangulum celaenops - New Mexico Milksnake

• Liochlorophis (Opheodrys) vernalis - Smooth Green Snake
  1. Subspecies: Liochlorophis (Opheodrys) vernalis blanchardi - Smooth Green Snake
     • Head Detail: Liochlorophis (Opheodrys) vernalis blanchardi - Smooth Green Snake

• Masticophis bilineatus - Sonoran Whipsnake
  1. Subspecies: Masticophis bilineatus bilineatus - Sonoran Whipsnake

• Masticophis flagellum - Coachwhip Snake
  1. Subspecies: Masticophis flagellum testaceus - Western Coachwhip Snake

• Masticophis taeniatus - Striped Whipsnake
  1. Subspecies: Masticophis taeniatus taeniatus - Desert Striped Whipsnake

• Pituophis catenifer - Gopher Snake
  1. Subspecies: Pituophis catenifer affinis - Sonoran Gopher Snake
  2. Subspecies: Pituophis catenifer sayi - Bullsnake

• Rhinocheilus lecontei - Longnose Snake
  1. Subspecies: Rhinocheilus lecontei lecontei - Western Longnose Snake
  2. Subspecies: Rhinocheilus lecontei tessellatus - Texas Longnose Snake
     • Photo 1: Rhinocheilus lecontei tessellatus - Texas Longnose Snake

• Salvadora grahamiae - Mountain Patchnose Snake
  1. Subspecies: Salvadora grahamiae grahamiae - Mountain Patchnose Snake

• Salvadora deserticola - Big Bend Patchnose Snake - NEW PHOTO
  1. Photo 1: Salvadora deserticola - Big Bend Patchnose Snake - NEW PHOTO

• Senticolis triaspis - Green Rat Snake
  1. Subspecies: Senticolis triaspis intermedia - Northern Green Rat Snake
     • Photo 1: Senticolis triaspis intermedia - Northern Green Rat Snake

• Sonora semiannulata - Ground Snake
  1. Variation #1: Banded
  2. Variation #2: Plain
  3. Variation #3: Striped

• Tantilla hobartsmithi - Southwestern Black-Headed Snake

• Tantilla nigriceps - Plains Black-Headed Snake

• Tantilla yaquia - Yaqui Black-Headed Snake

• Trimorphodon biscutatus - Lyre Snake
  1. Subspecies: Trimorphodon biscutatus lambda - Sonoran Lyre Snake
  2. Subspecies: Trimorphodon biscutatus vilkinsonii - Texas Lyre Snake

Subfamily Dipsadinae

• Hypsiglena torquata - Night Snake
  1. Subspecies: Hypsiglena torquata jani - Texas Night Snake
     • Head Detail: Hypsiglena torquata jani - Texas Night Snake

Subfamily Dipsadinae incertae sedis
(NOTE: "Incertae sedis" indicates that the systematic status or composition of these subfamilies are unclear)

• Diadophis punctatus - Ringneck Snake
  1. Subspecies: Diadophis punctatus arnyi - Prairie Ringneck Snake
     • Photo 1: Diadophis punctatus arnyi - Prairie Ringneck Snake
  2. Subspecies: Diadophis punctatus regalis - Regal Ringneck Snake

Subfamily Natricinae

• Nerodia erythrogaster - Plainbelly Water Snake
  1. Subspecies: Nerodia erythrogaster transversa - Blotched Water Snake
     • Photo 1: Nerodia erythrogaster transversa - Blotched Water Snake

• Thamnophis cyrtopsis - Blackneck Garter Snake
  1. Subspecies: Thamnophis cyrtopsis cyrtopsis - Western Blackneck Garter Snake
     • Photo 1: Thamnophis cyrtopsis cyrtopsis - Western Blackneck Garter Snake
     • Photo 1: Thamnophis cyrtopsis cyrtopsis - Western Blackneck Garter Snake

• Thamnophis elegans - Western Terrestrial Garter Snake
  1. Subspecies: Thamnophis elegans vagrans - Wandering Garter Snake

• Thamnophis eques - Mexican Garter Snake
  1. Subspecies: Thamnophis eques megalops - Northern Mexican Garter Snake

• Thamnophis marcianus - Checkered Garter Snake
  1. Subspecies: Thamnophis marcianus marcianus - Checkered Garter Snake

• Thamnophis proximus - Western Ribbon Snake
  1. Subspecies: Thamnophis proximus diabolicus - Arid Land Ribbon Snake

• Thamnophis rufipunctatus - Narrowhead Garter Snake
  1. Subspecies: Thamnophis rufipunctatus rufipunctatus - Narrowhead Garter Snake

• Thamnophis sirtalis - Common Garter Snake
  1. Subspecies: Thamnophis sirtalis dorsalis - New Mexico Garter Snake

• Tropidoclonion lineatum - Lined Snake

Subfamily Xenodontinae

• Heterodon nasicus - Western Hognose Snake
  1. Subspecies: Heterodon nasicus gloydi - Dusty Hognose Snake
  2. Subspecies: Heterodon nasicus kennerlyi - Mexican Hognose Snake
  3. Subspecies: Heterodon nasicus nasicus - Plains Hognose Snake

Slender Blind Snakes
Family Leptotyphlopidae

• Leptotyphlops dulcis - Texas Blind Snake
  1. Subspecies: Leptotyphlops dulcis dissectus - New Mexico Blind Snake

• Leptotyphlops humilis - Western Blind Snake
  1. Subspecies: Leptotyphlops humilis segregus - Trans-Pecos Blind Snake