Family: Colubridae
Subfamily: Colubrinae
Coluber constrictor anthicus
More images (Highly variable)
Family: Colubridae
Subfamily: Colubrinae
Drymarchon melanurus erebennus
Family: Colubridae
Subfamily: Colubrinae
Lampropeltis calligaster calligaster
Family: Colubridae
Subfamily: Colubrinae
Lampropeltis triangulum amaura
Family: Colubridae
Subfamily: Colubrinae
Opheodrys aestivus aestivus
Family: Colubridae
Subfamily: Colubrinae
Salvadora grahamiae lineata
Family: Colubridae
Subfamily: Natricinae - often associated with water or moist-soil habitat
Nerodia erythrogaster
Family: Colubridae
Subfamily: Natricinae - often associated with water or moist-soil habitat
Nerodia fasciata confluens
Family: Colubridae
Subfamily: Natricinae - often associated with water or moist-soil habitat
Nerodia rhombifer
Family: Colubridae
Subfamily: Natricinae - often associated with water or moist-soil habitat
Regina grahamii
Family: Colubridae
Subfamily: Natricinae - often associated with water or moist-soil habitat
Regina rigida sinicola
Family: Colubridae
Subfamily: Natricinae - often associated with water or moist-soil habitat
Storeria dekayi texana
Family: Colubridae
Subfamily: Natricinae - often associated with water or moist-soil habitat
Storeria occipitomaculata obscura
Family: Colubridae
Subfamily: Natricinae - often associated with water or moist-soil habitat
Thamnophis marcianus
Family: Colubridae
Subfamily: Natricinae - often associated with water or moist-soil habitat
Thamnophis proximus proximus
Family: Colubridae
Subfamily: Natricinae - often associated with water or moist-soil habitat
Thamnophis sirtalis sirtalis
Family: Colubridae
Subfamily: Natricinae - often associated with water or moist-soil habitat
Tropidoclonion lineatum
Family: Colubridae
Subfamily: Natricinae - often associated with water or moist-soil habitat
Virginia striatula
Family: Colubridae
Subfamily: Dipsadinae - oviparous
Diadophis punctatus strictogenys
Family: Colubridae
Subfamily: Dipsadinae - oviparous
Farancia abacura reinwardtii
Family: Colubridae
Subfamily: Dipsadinae - oviparous
Heterodon platirhinos
Family: Colubridae
Subfamily: Dipsadinae - oviparous
Heterodon nasicus
Family: Colubridae
Subfamily: Dipsadinae - oviparous
Hypsiglena jani texana
Family: Elapidae - proteroglyphous dentition on fixed maxilla (tooth always erect, fits into buccal socket of mandible when mouth closed), fang injects 1 degree neurotoxin such that prey has respiratory/cardiac arrest
Micrurus tener
Family: Viperidae - solenoglyphous dentition on short movable (anterio-posteriorly) maxilla, fang injects 1 degree of hemotoxin such that prey is being digested prior before ingestion, vertical pupils
Subfamily: Crotalinae - loreal pits present; may have rattle & are lecithotrophic viviparous
Agkistrodon contortrix contortrix
Family: Viperidae - solenoglyphous dentition on short movable (anterio-posteriorly) maxilla, fang injects 1 degree of hemotoxin such that prey is being digested prior before ingestion, vertical pupils
Subfamily: Crotalinae - loreal pits present; may have rattle & are lecithotrophic viviparous
Agkistrodon piscivorus leucostoma
Family: Viperidae - solenoglyphous dentition on short movable (anterio-posteriorly) maxilla, fang injects 1 degree of hemotoxin such that prey is being digested prior before ingestion, vertical pupils
Subfamily: Crotalinae - loreal pits present; may have rattle & are lecithotrophic viviparous
Crotalus atrox
Family: Viperidae - solenoglyphous dentition on short movable (anterio-posteriorly) maxilla, fang injects 1 degree of hemotoxin such that prey is being digested prior before ingestion, vertical pupils
Subfamily: Crotalinae - loreal pits present; may have rattle & are lecithotrophic viviparous
Crotalus horridus
Family: Viperidae - solenoglyphous dentition on short movable (anterio-posteriorly) maxilla, fang injects 1 degree of hemotoxin such that prey is being digested prior before ingestion, vertical pupils
Subfamily: Crotalinae - loreal pits present; may have rattle & are lecithotrophic viviparous
Sistrurus catenatus
Family: Viperidae - solenoglyphous dentition on short movable (anterio-posteriorly) maxilla, fang injects 1 degree of hemotoxin such that prey is being digested prior before ingestion, vertical pupils
Subfamily: Crotalinae - loreal pits present; may have rattle & are lecithotrophic viviparous
Sistrurus miliarius streckeri
Infraorder Scolecophidia
Leptotyphlopidae
Rena dulcis
Typhlopidae
Ramphotyphlops braminus
Infraorder Alethinophidia
Boidae
Boinae
Boa
Pythonidae
Python
clade Caenophidia
Colubridae
Colubrinae
Arizona elegans
Cemophora coccinea copei
Coluber constrictor anthicus
Coluber f. flagellum
Drymarchon melanurus erebennus
Lampropeltis c. calligaster
Lampropeltis holbrooki
Lampropeltis triangulum amaura
Opheodrys a. aestivus
Opheodrys vernalis
Pantherophis slowinskii
Pantherophis obsoletus
Pituophis ruthveni
Salvadora grahamiae lineata
Sonora semiannulata
Tantilla gracilis
Natricinae
Nerodia erythrogaster
Nerodia fasciata confluens
Nerodia rhombifer
Regina grahamii
Regina rigida sinicola
Storeria dekayi
Storeria occipitomaculata obscura
Thamnophis marcianus
Thamnophis p. proximus
Thamnophis s. sirtalis
Tropidoclonion lineatum
Virginia striatula
Virginia valeriae elegans
Dipsadinae
Carphophis vermis
Diadophis punctatus strictogenys (x arnyi)
Farancia abacura reinwardtii
Heterodon platirhinos
Heterodon nasicus
Hypsiglena jani texana
Elapidae
Micrurus tener
Viperidae
Crotalinae
Agkistrodon c. contortrix (x laticinctus)
Agkistrodon piscivorus
Crotalus atrox
Crotalus horridus
Sistrurus catenatus
Sistrurus miliarius streckeri
