Colorado

Glossy Snake Arizona elegans

Common NameGlossy Snake
Scientific NameArizona elegans
FamilySolid Toothed & Rear Fanged
Average Length178cm
ReproductionEggs
Number of Offspring9
VenomNon-venomous
DistributionSouthwest, Midwest, South
Photographer
Notes
Photo by Michael R. Spencer

Rubber Boa Charina bottae

Common NameRubber Boa
Scientific NameCharina bottae
FamilyBoas
Average Length83cm
ReproductionLive
Number of Offspring4
VenomNon-venomous
DistributionCanada, Southwest, Midwest, Northwest
Photographer
Notes
Photo by William Flaxington

Racer Coluber constrictor

Common NameRacer
Scientific NameColuber constrictor
FamilySolid Toothed & Rear Fanged
Average Length191cm
ReproductionEggs
Number of Offspring14
VenomNon-venomous
DistributionSoutheast, Southwest, Canada, Midwest, Northeast, Northwest, South
Photographer
Notes
Photo by David Nixon

Midget Faded Rattlesnake Crotalus oreganus

Common NameMidget Faded Rattlesnake
Scientific NameCrotalus oreganus
FamilyPit Vipers
Average Length75cm
ReproductionLive
Number of Offspring5
VenomExtremely Venomous
DistributionMidwest, Southwest, Northwest
Photographer
Notes
Photo by William Flaxington

Western Rattlesnake Crotalus viridis

Common NameWestern Rattlesnake
Scientific NameCrotalus viridis
FamilyPit Vipers
Average Length163cm
ReproductionLive
Number of Offspring10
VenomExtremely Venomous
DistributionCanada, Southwest, Midwest, Northwest, South
Photographer
Notes
Photo by Wolfgang Wuster

Ring-necked Snake Diadophis punctatus

Common NameRing-necked Snake
Scientific NameDiadophis punctatus
FamilySolid Toothed & Rear Fanged
Average Length86cm
ReproductionEggs
Number of Offspring5
VenomNon-venomous
DistributionSoutheast, Southwest, Midwest, Northeast, Northwest, South, Canada
Photographer
Notes
Photo by Michael Spencer

Great Plains Rat Snake Elaphe emoryi

Common NameGreat Plains Rat Snake
Scientific NameElaphe emoryi
FamilySolid Toothed & Rear Fanged
Average Length153cm
ReproductionEggs
Number of Offspring10
VenomNon-venomous
DistributionSoutheast, Midwest, Northeast, South, Southwest
Photographer
Notes
Photo by Michael Spencer

Hog-nose Snake Heterodon nasicus

Common NameHog-nose Snake
Scientific NameHeterodon nasicus
FamilySolid Toothed & Rear Fanged
Average Length154cm
ReproductionEggs
Number of Offspring11
VenomNon-venomous
DistributionCanada, Southwest, Midwest, Northeast, Northwest, South
Photographer
Notes
Pretends to be dead if harassed. Photo by Randall Davis

Night Snake Hypsiglena torquata

Common NameNight Snake
Scientific NameHypsiglena torquata
FamilySolid Toothed & Rear Fanged
Average Length64cm
ReproductionEggs
Number of Offspring4
VenomNon-venomous
DistributionSouthwest, Midwest, Northwest, South
Photographer
Notes
Photo by Todd Pierson

Common Kingsnake Lampropeltis getula

Common NameCommon Kingsnake
Scientific NameLampropeltis getula
FamilySolid Toothed & Rear Fanged
Average Length208cm
ReproductionEggs
Number of Offspring11
VenomNon-venomous
DistributionSoutheast, Southwest, Midwest, Northeast, South, Northwest
Photographer
Notes
Photo by Todd Pierson

Milksnake Lampropeltis triangulum

Common NameMilksnake
Scientific NameLampropeltis triangulum
FamilySolid Toothed & Rear Fanged
Average Length132cm
ReproductionEggs
Number of Offspring8
VenomNon-venomous
DistributionSoutheast, Southwest, Midwest, Northeast, South, Northwest, Canada
Photographer
Notes
Photo by David Nixon

Coachwhip Snake Masticophis flagellum

Common NameCoachwhip Snake
Scientific NameMasticophis flagellum
FamilySolid Toothed & Rear Fanged
Average Length259cm
ReproductionEggs
Number of Offspring10
VenomNon-venomous
DistributionSoutheast, Southwest, Midwest, Northeast, South
Photographer
Notes
Highly variable in color Photo by Michael Spencer

Striped Whipsnake Masticophis taeniatus

Common NameStriped Whipsnake
Scientific NameMasticophis taeniatus
FamilySolid Toothed & Rear Fanged
Average Length184cm
ReproductionEggs
Number of Offspring6
VenomNon-venomous
DistributionSouthwest, Midwest, Northwest, South
PhotographerWilliam Flaxington
Notes
Photo by William Flaxington

Northern Water Snake Nerodia sipedon

Common NameNorthern Water Snake
Scientific NameNerodia sipedon
FamilySolid Toothed & Rear Fanged
Average Length150cm
ReproductionLive
Number of Offspring27
VenomNon-venomous
DistributionSoutheast, Midwest, Northeast, South, Canada
Photographer
Notes
Photo by Todd Pierson

Gopher Snake Pituophis catenifer

Common NameGopher Snake
Scientific NamePituophis catenifer
FamilySolid Toothed & Rear Fanged
Average Length274cm
ReproductionEggs
Number of Offspring11
VenomNon-venomous
DistributionCanada, Southwest, Midwest, Northwest, Northeast, South
Photographer
Notes
Photo by William Flaxington

Long-nosed Snake Rhinocheilus lecontei

Common NameLong-nosed Snake
Scientific NameRhinocheilus lecontei
FamilySolid Toothed & Rear Fanged
Average Length104cm
ReproductionEggs
Number of Offspring7
VenomNon-venomous
DistributionSouthwest, Midwest, Northwest, South
Photographer
Notes
Photo by Todd Pierson

Massasauga Sistrurus catenatus

Common NameMassasauga
Scientific NameSistrurus catenatus
FamilyPit Vipers
Average Length100cm
ReproductionLive
Number of Offspring8
VenomExtremely Venomous
DistributionSouthwest, Midwest, Northeast, South, Canada
Photographer
Notes
Photo by Wolfgang Wuster

Ground Snake Sonora semiannulata

Common NameGround Snake
Scientific NameSonora semiannulata
FamilySolid Toothed & Rear Fanged
Average Length38cm
ReproductionEggs
Number of Offspring4
VenomMildly Venomous
DistributionSouthwest, Southeast, Midwest, Northwest, South
Photographer
Notes
Highly variable in color and pattern Photo by William Flaxington

Southwestern Black-headed Snake Tantilla hobartsmithi

Common NameSouthwestern Black-headed Snake
Scientific NameTantilla hobartsmithi
FamilySolid Toothed & Rear Fanged
Average Length31cm
ReproductionEggs
Number of Offspring2
VenomMildly Venomous
DistributionSouthwest, Midwest, South
Photographer
Notes
Photo by Matthijs Hollanders (https://www.flickr.com/photos/mhollanders)

Plains Black-headed Snake Tantilla nigriceps

Common NamePlains Black-headed Snake
Scientific NameTantilla nigriceps
FamilySolid Toothed & Rear Fanged
Average Length39cm
ReproductionEggs
Number of Offspring2
VenomMildly Venomous
DistributionSouthwest, Midwest, South, Northwest
Photographer
Notes
Photo by Nick Peterson

Black-necked Garter Snake Thamnophis cyrtopsis

Common NameBlack-necked Garter Snake
Scientific NameThamnophis cyrtopsis
FamilySolid Toothed & Rear Fanged
Average Length114cm
ReproductionLive
Number of Offspring10
VenomNon-venomous
DistributionSouthwest, Midwest, South
Photographer
Notes
Photo by William Flaxington

Western Terrestrial Garter Snake Thamnophis elegans

Common NameWestern Terrestrial Garter Snake
Scientific NameThamnophis elegans
FamilySolid Toothed & Rear Fanged
Average Length109cm
ReproductionLive
Number of Offspring9
VenomMildly Venomous
DistributionCanada, Southwest, Midwest, Northwest, South
Photographer
Notes
Photo by William Flaxington

Western Ribbon Snake Thamnophis proximus

Common NameWestern Ribbon Snake
Scientific NameThamnophis proximus
FamilySolid Toothed & Rear Fanged
Average Length127cm
ReproductionLive
Number of Offspring13
VenomNon-venomous
DistributionSoutheast, Midwest, Northeast, South, Southwest
Photographer
Notes
Photo by Todd Pierson

Plains Garter Snake Thamnophis radix

Common NamePlains Garter Snake
Scientific NameThamnophis radix
FamilySolid Toothed & Rear Fanged
Average Length110cm
ReproductionLive
Number of Offspring29
VenomNon-venomous
DistributionCanada, Midwest, Northeast, Northwest, Southwest, South
Photographer
Notes
Photo by Eric Vanderduys

Common Garter Snake Thamnophis sirtalis

Common NameCommon Garter Snake
Scientific NameThamnophis sirtalis
FamilySolid Toothed & Rear Fanged
Average Length137cm
ReproductionLive
Number of Offspring27
VenomMildly Venomous
DistributionNorthwest, Canada, Southeast, Southwest, Midwest, Northeast, South
Photographer
Notes
Highly variable in color and pattern Photo by William Flaxington

Lined Snake Tropidoclonion lineatum

Common NameLined Snake
Scientific NameTropidoclonion lineatum
FamilySolid Toothed & Rear Fanged
Average Length57cm
ReproductionLive
Number of Offspring8
VenomNon-venomous
DistributionMidwest, Northeast, Southwest, South
Photographer