Snakes of the US
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Learn about what's in your backyard
So Many Snakes - So Little Time
There are hundreds of species and subspecies of snakes in the US. Wh have done our best to include them all.
Javan Wart Snake (Acrochordus javanicus) (non-native)
Venomous:
Southern Copperhead (Agkistrodon contortrix contortrix )-Venomous
Florida Cottonmouth (Agkistrodon piscivorous conanti)-Venomous
Eastern Diamondback Rattlesnake (Crotalus adamanteus)-Venomous
Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
Dusky Pygmy Rattlesnake (Sistrurus miliarius barbouri)-Venomous
Carolina Pygmy Rattlesnake (Sistrurus miliarius miliarius)-Venomous
Non-venomous:
Non-venomous:
Venomous:
Colorado Desert Sidewinder (Crotalus cerastes laterorepens )-Venomous
Northern Black-tailed Rattlesnake (Crotalus molossus molossus)-Venomous
Grand Canyon Rattlesnake (Crotalus oreganus abyssus)-Venomous
Great Basin Rattlesnake (Crotalus oreganus lutosus)-Venomous
Western Twin-spotted Rattlesnake (Crotalus pricei pricei)-Venomous
Southwestern Speckled Rattlesnake (Crotalus pyrrhus)-Venomous
Northern Mohave Rattlesnake (Crotalus scutulatus scutulatus)-Venomous
Tiger Rattlesnake (Crotalus tigris)-Venomous
New Mexico Ridge-nosed Rattlesnake (Crotalus willardi obscurus)-Venomous
Arizona Ridge-nosed Rattlesnake (Crotalus willardi willardi )-Venomous
Arizona Coral Snake (Micruroides euryxantha euryxantha)-Venomous
Non-venomous:
Mojave Shovel-nosed Snake (Chionactis occipitalis occipitalis)
Organ Pipe Shovel-nosed Snake (Chionactis palarostris organica)
Northern Desert Night Snake (Hypsiglena chlorophaea deserticola)
Utah Mountain Kingsnake (Lampropeltis pyromelana infralabialis)
Arizona Mountain Kingsnake (Lampropeltis pyromelana pyromelana)
Big Bend Patch-nosed Snake (Salvadora hexalepis deserticola)
Western Black-necked Garter Snake (Thamnophis cyrtopsis cyrtopsis)
Venomous:
- Southern Copperhead (Agkistrodon contortrix contortrix )-Venomous
- Western Cottonmouth (Agkistrodon piscivorous leucostoma)-Venomous
- Northern Cottonmouth (Agkistrodon piscivorous piscivorous )-Venomous
- Western Diamondback Rattlesnake (Crotalus atrox)-Venomous
- Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
- Texas Coral Snake (Micrurus tener)-Venomous
- Western Pygmy Rattlesnake (Sistrurus miliarius streckeri)-Venomous
Non-venomous:
- Midwest Worm Snake (Carphophis amoenus helenae)
- Western Worm Snake (Carphophis vermis)
- Northern Scarlet Snake (Cemophora coccinea copei)
- Buttermilk Racer (Coluber constrictor anthicus)
- Black-masked Racer (Coluber constrictor latrunculus)
- Southern Black Racer (Coluber constrictor priapus)
- Prairie Ring-necked Snake (Diadophis punctatus arnyi)
- Mississippi Ring-necked Snake (Diadophis punctatus stictogenys)
- Western Mud Snake (Farancia abacura reinwardtii)
- Rough Earth Snake (Haldea striatula)
- Dusty Hognose Snake (Heterodon nasicus dusty)
- Western Hognose Snake (Heterodon nasicus western)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Prairie Kingsnake (Lampropeltis calligaster)
- Speckled Kingsnake (Lampropeltis getula speckled)
- Black Kingsnake (Lampropeltis getula black)
- Gulf Glossy Swamp Snake (Liodytes rigida sinicola)
- Eastern Coachwhip Snake (Masticophis flagellum flagellum)
- Gulf Saltmarsh Snake (Nerodia clarkii clarkii)
- Mississippi Green Water Snake (Nerodia cyclopion)
- Yellow-bellied Water Snake (Nerodia erythrogaster yellow)
- Blotched Water Snake (Nerodia erythrogaster blotched)
- Broad Banded Water Snake (Nerodia fasciata confluens)
- Diamond-backed Water Snake (Nerodia rhombifer)
- Midland Water Snake (Nerodia sipedon pleuralis)
- Northern Water Snake (Nerodia sipedon sipedon)
- Rough Green Snake (Opheodrys aestivus)
- Great Plains Rat Snake (Pantherophis emoryi)
- Corn Snake (Pantherophis guttata guttata)
- Texas Rat Snake (Pantherophis obsoleta lindheimeri)
- Graham's Crayfish Snake (Regina grahamii)
- Queen Snake (Regina septemvittata)
- Western Ground Snake (Sonora semiannulata)
- Texas Brown Snake (Storeria dekayi texana)
- Midland Brown Snake (Storeria dekay wrightorum)
- Florida Red-bellied Snake (Storeria occipitomaculata obscura)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Flat Headed Snake (Tantilla gracilis)
- Western Ribbon Snake (Thamnophis proximus proximus)
- Red-sided Garter Snake (Thamnophis sirtalis parietalis)
- Plains Garter Snake (Thamnophis sirtalis radix)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
- Western Smooth Earth Snake (Virginia valeriae elegans)
Venomous:
- Western Diamondback Rattlesnake (Crotalus atrox)-Venomous
- Mojave Desert Sidewinder (Crotalus cerastes cerastes)-Venomous
- Colorado Desert Sidewinder (Crotalus cerastes laterorepens )-Venomous
- Southern Pacific Rattlesnake (Crotalus oreganus helleri)-Venomous
- Great Basin Rattlesnake (Crotalus oreganus lutosus)-Venomous
- Southwestern Speckled Rattlesnake (Crotalus pyrrhus)-Venomous
- Red Diamond Rattlesnake (Crotalus ruber ruber)-Venomous
- Northern Mohave Rattlesnake (Crotalus scutulatus scutulatus)-Venomous
- Panamint Rattlesnake (Crotalus stephensi)-Venomous
- Yellow-bellied Seasnake (Pelamis platura)-Venomous
- Northern pacific rattlesnake (Crotalus oreganus oreganus)-Venomous
Non-venomous:
- Mojave Glossy Snake (Arizona elegans candida)
- Desert Glossy Snake (Arizona elegans eburnata)
- California Glossy Snake (Arizona elegans occidentalis)
- Baja California Rat Snake (Bogertophis rosaliae)
- Northern Rubber Boa (Charina bottae bottae)
- Southern Rubber Boa (Charina bottae umbratica)
- Colorado Desert Shovel-nosed Snake (Chionactis annulata)
- Mojave Shovel-nosed Snake (Chionactis occipitalis occipitalis )
- Western Yellow-bellied Racer (Coluber constrictor mormon)
- Forest Sharp-tailed Snake (Contia longicaudae)
- Common Sharp-tailed Snake (Contia tenuis)
- Pacific Ring-necked Snake (Diadophis punctatus amabillis)
- San Bernardino Ring-necked Snake (Diadophis punctatus modestus)
- Northwestern Ring-necked Snake (Diadophis punctatus occidentalis)
- Coral-bellied Ring-necked Snake (Diadophis punctatus pulchellus)
- Regal Ring-necked Snake (Diadophis punctatus regalis)
- San Diego Ring-necked Snake (Diadophis punctatus similis)
- Monterey Ring-necked Snake (Diadophis punctatus vandenburghi)
- Sonoran Night Snake (Hypsiglena chlorophaea chlorophaea)
- Northern Desert Night Snake (Hypsiglena chlorophaea deserticola)
- San Diego Night Snake (Hypsiglena ochrorhyncha klauberi)
- California Night Snake (Hypsiglena ochorhyncha nuchalata)
- Braminy Blind Snake (Indotyphlops braminus)
- California Kingsnake (Lampropeltis californiae)
- California Mountain Kingsnake (Lampropeltis zonata)
- Northern Three Lined Boa (Lichanura orcutti)
- Baja Coachwhip Snake (Masticophis flagellum fuliginosus)
- Red Racer (Masticophis flagellum piceus)
- San Joaquin Coachwhip (Masticophis flagellum ruddocki)
- Alameda Striped Racer (Masticophis lateralis euryxanthus)
- California Striped Racer (Masticophis lateralis lateralis)
- Desert Striped Whipsnake (Masticophis taeniatus taeniatus)
- Spotted Leaf-nosed Snake (Phyllorhynchus decurtatus)
- Sonoran Gopher Snake (Pituophis catenifer affinis)
- San Diego Gopher Snake (Pituophis catenifer annectens)
- Pacific Gopher Snake (Pituophis catenifer catenifer)
- Santa Cruz Island Gopher Snake (Pituophis catenifer pumilis)
- Desert Slender Blind Snake (Rena humilus cahuilae)
- Western Blind Snake (Rena humilus humilus)
- Long-nosed Snake (Rhinocheilus lecontei)
- Desert Patch-nosed Snake (Salvadora hexalepis hexalepis)
- Mohave Patch-nosed Snake (Salvadora hexalepis mojavensis)
- Coast Patch-nosed Snake (Salvadora hexalepis virgultea)
- Western Ground Snake (Sonora semiannulata)
- Southwestern Black-headed Snake (Tantilla hobartsmithi)
- Western Black-headed Snake (Tantilla planiceps)
- Santa Cruz Garter Snake (Thamnophis atratus atratus)
- Oregon Garter Snake (Thamnophis atratus hydrophilus)
- Diablo Range Garter Snake (Thamnophis atratus zazanthus)
- Sierra Garter Snake (Thamnophis couchii)
- Mountain Garter Snake (Thamnophis elegans elegans)
- Coast Garter Snake (Thamnophis elegans terrestris)
- Wandering Garter Snake (Thamnophis elegans vagrans)
- Giant Garter Snake (Thamnophis gigas)
- Two Striped Garter Snake (Thamnophis hammondii)
- Checkered Garter Snake (Thamnophis marcianus marcianus)
- Northwestern Garter Snake (Thamnophis ordinoides)
- California Red-sided Garter Snake (Thamnophis sirtalis infernalis)
- San Francisco Garter Snake (Thamnophis sirtalis tetrataenia)
- Sonoran Lyresnake (Trimorphodon lambda)
- California Lyresnake (Trimorphodon lyrophanes)
Venomous:
Non-venomous:
Eastern Yellow-bellied Racer (Coluber constrictor flaviventris)
- Prairie Ring-necked Snake (Diadophis punctatus arnyi)
- Plains Hognose Snake (Heterodon nasicus plains)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Northern Desert Night Snake (Hypsiglena chlorophaea deserticola)
- California Kingsnake (Lampropeltis californiae)
- Central Plains Milk Snake (Lampropeltis gentilis)
- Western Coachwhip Snake (Masticophis flagellum testaceus)
- Desert Striped Whipsnake (Masticophis taeniatus taeniatus)
- Northern Water Snake (Nerodia sipedon sipedon)
- Smooth Green Snake (Opheodrys vernalis)
- Great Plains Rat Snake (Pantherophis emoryi)
- Great Basin Gopher Snake (Pituophis catenifer deserticola)
- Bullsnake (Pituophis catenifer sayi)
- New Mexico Blind Snake (Rena dissectus)
- Long-nosed Snake (Rhinocheilus lecontei)
- Western Ground Snake (Sonora semiannulata)
- Southwestern Black-headed Snake (Tantilla hobartsmithi)
- Plains Black-headed Snake (Tantilla nigriceps)
- Western Black-necked Garter Snake (Thamnophis cyrtopsis cyrtopsis)
- Wandering Garter Snake (Thamnophis elegans vagrans)
- Aridland Ribbon Snake (Thamnophis proximus diabolicus)
- Red-sided Garter Snake (Thamnophis sirtalis parietalis)
- Plains Garter Snake (Thamnophis sirtalis radix)
- Lined Snake (Tropidoclonion lineatum)
Venomous:
Southern Copperhead (Agkistrodon contortrix contortrix)-Venomous
Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
Non-venomous:
- Eastern Hognose Snake (Heterodon piatirhinos)
- Eastern Milk Snake (Lampropeltis triangulum)
- Northern Water Snake (Nerodia sipedon sipedon)
- Smooth Green Snake (Opheodrys vernalis)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Northern Brown Snake (Storeria dekayi dekayi)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Eastern Ribbon Snake (Thamnophis sauritus sauritus)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
Venomous:
Venomous:
Southern Copperhead (Agkistrodon contortrix contortrix)-Venomous
Northern Cottonmouth (Agkistrodon piscivorous piscivorous)-Venomous
Eastern Diamondback Rattlesnake (Crotalus adamanteus)-Venomous
Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
Dusky Pygmy Rattlesnake (Sistrurus miliarius barbouri)-Venomous
Non-venomous:
- Brown-chinned Racer (Coluber constrictor helvigularis)
- Everglades Racer (Coluber constrictor paludicola)
- Southern Black Racer (Coluber constrictor priapus)
- Key Ring-necked Snake (Diadophis punctatus acricus)
- Southern Ring-necked Snake (Diadophis punctatus punctatus)
- Eastern Indigo Snake (Drymarchon corais couperi)
- Eastern Mud Snake (Farancia abacura abacura)
- Common Rainbow Snake (Farancia erytrogramma erytrogramma)
- Southern Florida Rainbow Snake (Farancia erytrogramma seminola)
- Rough Earth Snake (Haldea striatula)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Southern Hognose Snake (Heterodon simus)
- Braminy Blind Snake (Indotyphlops braminus)
- South Florida Mole Kingsnake (Lampropeltis occipitolineata)
- Mole Kingsnake (Lampropeltis rhombomaculata)
- Short-Tailed Kingsnake (Lampropeltis extenuata)
- Peninsula Kingsnake (Lampropeltis getula peninsula)
- Eastern Kingsnake (Lampropeltis getula eastern)
- Apalachicola Lowland Kingsnake (Lampropeltis getula lowland)
- Scarlet Kingsnake (Lampropeltis elapsoides)
- Striped Crayfish Snake (Liodytes alleni)
- Southern Florida Black Swamp Snake (Liodytes pygaea cyclas)
- Northern Florida Black Swamp Snake (Liodytes pygaea pygaea)
- Eastern Glossy Swamp Snake (Liodytes rigida rigida)
- Gulf Glossy Swamp Snake (Liodytes rigida sinicola)
- Eastern Coachwhip Snake (Masticophis flagellum flagellum)
- Gulf Saltmarsh Snake (Nerodia clarkii clarkii)
- Mangrove Saltmarsh Snake (Nerodia clarkii compressicauda)
- Atlantic Saltmarsh Snake (Nerodia clarkii taeniata)
- Mississippi Green Water Snake (Nerodia cyclopion)
- Red-bellied Water Snake (Nerodia erythrogaster red)
- Yellow-bellied Water Snake (Nerodia erythrogaster yellow)
- Banded Water Snake (Nerodia fasciata fasciata)
- Florida Banded Water Snake (Nerodia flavigaster pictiventris)
- Florida Green Water Snake (Nerodia floridana )
- Midland Water Snake (Nerodia sipedon pleuralis)
- Brown Water Snake (Nerodia taxispilota)
- Rough Green Snake (Opheodrys aestivus)
- Florida Rough Green Snake (Opheodrys carinatus)
- Corn Snake (Pantherophis guttata guttata)
- Yellow Rat Snake (Pantherophis alleghaniensis yellow)
- Everglades Rat Snake (Pantherophis alleghaniensis everglades)
- Gray Rat Snake (Pantherophis alleghaniensis gray)
- Gulf Hammock Rat Snake (Pantherophis obsoleta williamsi)
- Black Pine Snake (Pituophis melanoleucus lodingi)
- Florida Pine Snake (Pituophis melanoleucus mugitus)
- Burmese Python (non-native) (Python bivittatus)
- Northern African Rock Python (non-native) (Python sebae)
- Queen Snake (Regina septemvittata)
- Pine Woods Snake (Rhadinea flavilata)
- Midland Brown Snake (Storeria dekay wrightorum)
- Florida Red-bellied Snake (Storeria occipitomaculata obscura)
- Florida Brown Snake (Storeria victa)
- Southeastern Crowned Snake (Tantilla coronata)
- Central Florida Crowned Snake (Tantilla relicta neilli)
- Coastal Dunes Crowned Snake (Tantilla relicta pamlica)
- Blue-striped Ribbon Snake (Thamnophis sauritus nitae)
- Peninsula Ribbon Snake (Thamnophis sirtalis sackenii)
- Eastern Ribbon Snake (Thamnophis sauritus sauritus)
- Blue-striped Garter Snake (Thamnophis sirtalis similis)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
- Eastern Smooth Earth Snake (Virginia valeriae valeriae)
Venomous:
Southern Copperhead (Agkistrodon contortrix contortrix)-Venomous
Northern Cottonmouth (Agkistrodon piscivorous piscivorous)-Venomous
Eastern Diamondback Rattlesnake (Crotalus adamanteus)-Venomous
Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
Dusky Pygmy Rattlesnake (Sistrurus miliarius barbouri)-Venomous
Carolina Pygmy Rattlesnake (Sistrurus miliarius miliarius)-Venomous
Non-venomous:
- Southern Black Racer (Coluber constrictor priapus)
- Northern Ring-necked Snake (Diadophis punctatus edwardsii)
- Southern Ring-necked Snake (Diadophis punctatus punctatus)
- Eastern Mud Snake (Farancia abacura abacura)
- Common Rainbow Snake (Farancia erytrogramma erytrogramma)
- Rough Earth Snake (Haldea striatula)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Southern Hognose Snake (Heterodon simus)
- Mole Kingsnake (Lampropeltis rhombomaculata)
- Eastern Kingsnake (Lampropeltis getula eastern)
- Black Kingsnake (Lampropeltis getula black)
- Scarlet Kingsnake (Lampropeltis elapsoides)
- Eastern Milk Snake (Lampropeltis triangulum)
- Northern Florida Black Swamp Snake (Liodytes pygaea pygaea)
- Eastern Glossy Swamp Snake (Liodytes rigida rigida)
- Gulf Glossy Swamp Snake (Liodytes rigida sinicola)
- Eastern Coachwhip Snake (Masticophis flagellum flagellum)
- Red-bellied Water Snake (Nerodia erythrogaster red)
- Yellow-bellied Water Snake (Nerodia erythrogaster yellow)
- Banded Water Snake (Nerodia fasciata fasciata)
- Florida Banded Water Snake (Nerodia flavigaster pictiventris)
- Florida Green Water Snake (Nerodia floridana )
- Midland Water Snake (Nerodia sipedon pleuralis)
- Brown Water Snake (Nerodia taxispilota)
- Rough Green Snake (Opheodrys aestivus)
- Corn Snake (Pantherophis guttata guttata)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Yellow Rat Snake (Pantherophis alleghaniensis yellow)
- Gray Rat Snake (Pantherophis alleghaniensis gray)
- Northern Pine Snake (Pituophis melanoleucus melanoleucus)
- Florida Pine Snake (Pituophis melanoleucus mugitus)
- Queen Snake (Regina septemvittata)
- Pine Woods Snake (Rhadinea flavilata)
- Northern Brown Snake (Storeria dekayi dekayi)
- Midland Brown Snake (Storeria dekay wrightorum)
- Florida Red-bellied Snake (Storeria occipitomaculata obscura)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Florida Brown Snake (Storeria victa)
- Southeastern Crowned Snake (Tantilla coronata)
- Eastern Ribbon Snake (Thamnophis sauritus sauritus)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
- Eastern Smooth Earth Snake (Virginia valeriae valeriae)
-
Hawaii has no native snakes
Venomous:
Non-venomous:
- Northwestern Ring-necked Snake
- Plains Hognose Snake (Heterodon nasicus plains)
- Northern Desert Night Snake
- Prairie Kingsnake (Lampropeltis calligaster)
- Desert Striped Whipsnake (Masticophis taeniatus taeniatus)
- Great Basin Gopher Snake (Pituophis catenifer deserticola )
- Bullsnake (Pituophis catenifer sayi)
- Long-nosed Snake (Rhinocheilus lecontei)
- Western Ground Snake (Sonora semiannulata)
- Wandering Garter Snake (Thamnophis elegans vagrans)
- Valley Garter Snake (Thamnophis sirtalis fitchi)
Venomous:
Southern Copperhead (Agkistrodon contortrix contortrix)-Venomous
Western Cottonmouth (Agkistrodon piscivorous leucostoma)-Venomous
Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
Non-venomous:
- Southern Black Racer (Coluber constrictor priapus)
- Prairie Ring-necked Snake (Diadophis punctatus arnyi)
- Northern Ring-necked Snake (Diadophis punctatus edwardsii)
- Western Mud Snake (Farancia abacura reinwardtii)
- Dusty Hognose Snake (Heterodon nasicus dusty)
- Plains Hognose Snake (Heterodon nasicus plains)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Prairie Kingsnake (Lampropeltis calligaster)
- Black Kingsnake (Lampropeltis getula black)
- Eastern Milk Snake (Lampropeltis triangulum)
- Mississippi Green Water Snake (Nerodia cyclopion)
- Yellow-bellied Water Snake (Nerodia erythrogaster yellow)
- Diamond-backed Water Snake (Nerodia rhombifer)
- Midland Water Snake (Nerodia sipedon pleuralis)
- Northern Water Snake (Nerodia sipedon sipedon)
- Rough Green Snake (Opheodrys aestivus)
- Great Plains Rat Snake (Pantherophis emoryi)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Gray Rat Snake (Pantherophis alleghaniensis gray)
- Western Fox Snake (Pantherophis ramspotti)
- Bullsnake (Pituophis catenifer sayi)
- Graham's Crayfish Snake (Regina grahamii)
- Queen Snake (Regina septemvittata)
- Midland Brown Snake (Storeria dekay wrightorum)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Flat Headed Snake (Tantilla gracilis)
- Western Ribbon Snake (Thamnophis proximus proximus)
- Northern Ribbon Snake (Thamnophis sauritus septentrionalis)
- Eastern Ribbon Snake (Thamnophis sauritus sauritus)
- Plains Garter Snake (Thamnophis sirtalis radix)
- Chicago Garter Snake (Thamnophis sirtalis semifasciatus)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
- Lined Snake (Tropidoclonion lineatum)
- Western Smooth Earth Snake (Virginia valeriae elegans)
Venomous:
Southern Copperhead (Agkistrodon contortrix contortrix)-Venomous
Western Cottonmouth (Agkistrodon piscivorous leucostoma)-Venomous
Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
Non-venomous:
- Blue Racer (Coluber constrictor foxi)
- Southern Black Racer (Coluber constrictor priapus)
- Northern Ring-necked Snake (Diadophis punctatus edwardsii)
- Western Mud Snake (Farancia abacura reinwardtii)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Prairie Kingsnake (Lampropeltis calligaster)
- Black Kingsnake (Lampropeltis getula black)
- Eastern Milk Snake (Lampropeltis triangulum)
- Copper-bellied Water Snake
- Diamond-backed Water Snake (Nerodia rhombifer)
- Midland Water Snake (Nerodia sipedon pleuralis)
- Northern Water Snake (Nerodia sipedon sipedon)
- Rough Green Snake (Opheodrys aestivus)
- Smooth Green Snake (Opheodrys vernalis)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Gray Rat Snake (Pantherophis alleghaniensis gray)
- Western Fox Snake (Pantherophis ramspotti)
- Bullsnake (Pituophis catenifer sayi)
- Queen Snake (Regina septemvittata)
- Northern Brown Snake (Storeria dekayi dekayi)
- Midland Brown Snake (Storeria dekay wrightorum)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Southeastern Crowned Snake (Tantilla coronata)
- Western Ribbon Snake (Thamnophis proximus proximus)
- Northern Ribbon Snake (Thamnophis sauritus septentrionalis)
- Eastern Ribbon Snake (Thamnophis sauritus sauritus)
- Chicago Garter Snake (Thamnophis sirtalis semifasciatus)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
- Western Smooth Earth Snake (Virginia valeriae elegans)
Venomous:
Non-venomous:
Eastern Yellow-bellied Racer (Coluber constrictor flaviventris)
- Prairie Ring-necked Snake (Diadophis punctatus arnyi)
- Plains Hognose Snake (Heterodon nasicus plains)
- Southern Hognose Snake (Heterodon simus)
- Prairie Kingsnake (Lampropeltis calligaster)
- Eastern Milk Snake (Lampropeltis triangulum)
- Copper-bellied Water Snake
- Diamond-backed Water Snake (Nerodia rhombifer)
- Northern Water Snake (Nerodia sipedon sipedon)
- Smooth Green Snake (Opheodrys vernalis)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Western Fox Snake (Pantherophis ramspotti)
- Bullsnake (Pituophis catenifer sayi)
- Graham's Crayfish Snake (Regina grahamii)
- Texas Brown Snake (Storeria dekayi texana)
- Midland Brown Snake (Storeria dekay wrightorum)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Western Ribbon Snake (Thamnophis proximus proximus)
- Plains Garter Snake (Thamnophis sirtalis radix)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
- Lined Snake (Tropidoclonion lineatum)
- Western Smooth Earth Snake (Virginia valeriae elegans)
Venomous:
Broad-banded Copperhead (Agkistrodon contortrix laticinctus)-Venomous
Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
Northern Mohave Rattlesnake (Crotalus scutulatus scutulatus)-Venomous
Non-venomous:
Eastern Yellow-bellied Racer (Coluber constrictor flaviventris)
- Prairie Ring-necked Snake (Diadophis punctatus arnyi)
- Rough Earth Snake (Haldea striatula)
- Dusty Hognose Snake (Heterodon nasicus dusty)
- Plains Hognose Snake (Heterodon nasicus plains)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Texas Night Snake (Hypsiglena jani texana)
- Prairie Kingsnake (Lampropeltis calligaster)
- Central Plains Milk Snake (Lampropeltis gentilis)
- Eastern Coachwhip Snake (Masticophis flagellum flagellum)
- Western Coachwhip Snake (Masticophis flagellum testaceus)
- Blotched Water Snake (Nerodia erythrogaster blotched)
- Diamond-backed Water Snake (Nerodia rhombifer)
- Northern Water Snake (Nerodia sipedon sipedon)
- Rough Green Snake (Opheodrys aestivus)
- Smooth Green Snake (Opheodrys vernalis)
- Great Plains Rat Snake (Pantherophis emoryi)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Western Fox Snake (Pantherophis ramspotti)
- Bullsnake (Pituophis catenifer sayi)
- Graham's Crayfish Snake (Regina grahamii)
- New Mexico Blind Snake (Rena dissectus)
- Long-nosed Snake (Rhinocheilus lecontei)
- Western Ground Snake (Sonora semiannulata)
- Texas Brown Snake (Storeria dekayi texana)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Flat Headed Snake (Tantilla gracilis)
- Aridland Ribbon Snake (Thamnophis proximus diabolicus)
- Western Ribbon Snake (Thamnophis proximus proximus)
- Texas Garter Snake (Thamnophis sirtalis annectens)
- Red-sided Garter Snake (Thamnophis sirtalis parietalis)
- Plains Garter Snake (Thamnophis sirtalis radix)
- Lined Snake (Tropidoclonion lineatum)
- Western Smooth Earth Snake (Virginia valeriae elegans)
Venomous:
Southern Copperhead (Agkistrodon contortrix contortrix)-Venomous
Western Cottonmouth (Agkistrodon piscivorous leucostoma)-Venomous
- Northern Cottonmouth (Agkistrodon piscivorous piscivorous )-Venomous
Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
- Western Pygmy Rattlesnake (Sistrurus miliarius streckeri)-Venomous
Non-venomous:
- Southern Black Racer (Coluber constrictor priapus)
- Northern Ring-necked Snake (Diadophis punctatus edwardsii)
Mississippi Ring-necked Snake (Diadophis punctatus stictogenys)
- Western Mud Snake (Farancia abacura reinwardtii)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Prairie Kingsnake (Lampropeltis calligaster)
- Black Kingsnake (Lampropeltis getula black)
- Scarlet Kingsnake (Lampropeltis elapsoides)
- Eastern Milk Snake (Lampropeltis triangulum)
- Eastern Coachwhip Snake (Masticophis flagellum flagellum)
- Copper-bellied Water Snake
- Broad Banded Water Snake (Nerodia fasciata confluens)
- Diamond-backed Water Snake (Nerodia rhombifer)
- Midland Water Snake (Nerodia sipedon pleuralis)
- Northern Water Snake (Nerodia sipedon sipedon)
- Rough Green Snake (Opheodrys aestivus)
- Corn Snake (Pantherophis guttata guttata)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Gray Rat Snake (Pantherophis alleghaniensis gray)
- Northern Pine Snake (Pituophis melanoleucus melanoleucus)
- Queen Snake (Regina septemvittata)
- Midland Brown Snake (Storeria dekay wrightorum)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Southeastern Crowned Snake (Tantilla coronata)
- Western Ribbon Snake (Thamnophis proximus proximus)
- Eastern Ribbon Snake (Thamnophis sauritus sauritus)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
- Western Smooth Earth Snake (Virginia valeriae elegans)
- Eastern Smooth Earth Snake (Virginia valeriae valeriae)
Venomous:
Southern Copperhead (Agkistrodon contortrix contortrix)-Venomous
Western Cottonmouth (Agkistrodon piscivorous leucostoma)-Venomous
- Northern Cottonmouth (Agkistrodon piscivorous piscivorous )-Venomous
Eastern Diamondback Rattlesnake (Crotalus adamanteus)-Venomous
Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
Texas Coral Snake (Micrurus tener)-Venomous
Dusky Pygmy Rattlesnake (Sistrurus miliarius barbouri)-Venomous
Western Pygmy Rattlesnake (Sistrurus miliarius streckeri)-Venomous
Non-venomous:
- Buttermilk Racer (Coluber constrictor anthicus)
- Tan Racer (Coluber constrictor etheridgei)
Eastern Yellow-bellied Racer (Coluber constrictor flaviventris)
- Black-masked Racer (Coluber constrictor latrunculus)
- Southern Black Racer (Coluber constrictor priapus)
- Mississippi Ring-necked Snake (Diadophis punctatus stictogenys)
- Western Mud Snake (Farancia abacura reinwardtii)
- Common Rainbow Snake (Farancia erytrogramma erytrogramma)
- Rough Earth Snake (Haldea striatula)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Prairie Kingsnake (Lampropeltis calligaster)
- Mole Kingsnake (Lampropeltis rhombomaculata)
- Delta Glossy Swamp Snake (Liodytes rigida deltae)
- Gulf Glossy Swamp Snake (Liodytes rigida sinicola)
- Eastern Coachwhip Snake (Masticophis flagellum flagellum)
- Gulf Saltmarsh Snake (Nerodia clarkii clarkii)
- Mississippi Green Water Snake (Nerodia cyclopion)
- Red-bellied Water Snake (Nerodia erythrogaster)
- Yellow-bellied Water Snake (Nerodia erythrogaster)
- Blotched Water Snake (Nerodia erythrogaster blotched)
- Broad Banded Water Snake (Nerodia fasciata confluens)
- Banded Water Snake (Nerodia fasciata fasciata)
- Diamond-backed Water Snake (Nerodia rhombifer)
- Midland Water Snake (Nerodia sipedon pleuralis)
- Rough Green Snake (Opheodrys aestivus)
- Great Plains Rat Snake (Pantherophis emoryi)
- Corn Snake (Pantherophis guttata guttata)
- Louisiana Corn Snake (Pantherophis slowinskii)
- Texas Rat Snake (Pantherophis obsoleta lindheimeri)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Bullsnake (Pituophis catenifer sayi)
- Black Pine Snake (Pituophis melanoleucus lodingi)
- Louisiana Pine Snake (Pituophis ruthveni)
- Graham's Crayfish Snake (Regina grahamii)
- Pine Woods Snake (Rhadinea flavilata)
- Texas Brown Snake (Storeria dekayi texana)
- Midland Brown Snake (Storeria dekay wrightorum)
- Florida Red-bellied Snake (Storeria occipitomaculata obscura)
- Southeastern Crowned Snake (Tantilla coronata)
- Flat Headed Snake (Tantilla gracilis)
- Gulf Coast Ribbon Snake (Thamnophis proximus orarius)
- Western Ribbon Snake (Thamnophis proximus proximus)
- Eastern Ribbon Snake (Thamnophis sauritus sauritus)
- Texas Garter Snake (Thamnophis sirtalis annectens)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
- Western Smooth Earth Snake (Virginia valeriae elegans)
Non-venomous:
- Eastern Milk Snake (Lampropeltis triangulum)
- Northern Water Snake (Nerodia sipedon sipedon)
- Smooth Green Snake (Opheodrys vernalis)
- Northern Brown Snake (Storeria dekayi dekayi)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Northern Ribbon Snake (Thamnophis sauritus septentrionalis)
- Eastern Ribbon Snake (Thamnophis sauritus sauritus)
- Maritime Garter Snake (Thamnophis sirtalis pallidula)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
Venomous:
Southern Copperhead (Agkistrodon contortrix contortrix)-Venomous
Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
Non-venomous:
- Southern Ring-necked Snake (Diadophis punctatus punctatus)
- Eastern Milk Snake (Lampropeltis triangulum)
- Red-bellied Water Snake (Nerodia erythrogaster)
- Northern Water Snake (Nerodia sipedon sipedon)
- Rough Green Snake (Opheodrys aestivus)
- Smooth Green Snake (Opheodrys vernalis)
- Corn Snake (Pantherophis guttata guttata)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Northern Pine Snake (Pituophis melanoleucus melanoleucus)
- Queen Snake (Regina septemvittata)
- Northern Brown Snake (Storeria dekayi dekayi)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Eastern Ribbon Snake (Thamnophis sauritus sauritus)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
- Mountain Earth Snake (Virginia valeriae pulchra)
- Eastern Smooth Earth Snake (Virginia valeriae valeriae)
Venomous:
Southern Copperhead (Agkistrodon contortrix contortrix)-Venomous
Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
Non-venomous:
- Eastern Milk Snake (Lampropeltis triangulum)
- Northern Water Snake (Nerodia sipedon sipedon)
- Smooth Green Snake (Opheodrys vernalis)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Northern Brown Snake (Storeria dekayi dekayi)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Eastern Ribbon Snake (Thamnophis sauritus sauritus)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
Venomous:
Non-venomous:
- Blue Racer (Coluber constrictor foxi)
- Northern Ring-necked Snake (Diadophis punctatus edwardsii)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Eastern Milk Snake (Lampropeltis triangulum)
- Copper-bellied Water Snake
- Northern Water Snake (Nerodia sipedon sipedon)
- Smooth Green Snake (Opheodrys vernalis)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Western Fox Snake (Pantherophis ramspotti)
- Queen Snake (Regina septemvittata)
- Northern Brown Snake (Storeria dekayi dekayi)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Northern Ribbon Snake (Thamnophis sauritus septentrionalis)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
Venomous:
Non-venomous:
Eastern Yellow-bellied Racer (Coluber constrictor flaviventris)
- Prairie Ring-necked Snake (Diadophis punctatus arnyi)
- Northern Ring-necked Snake (Diadophis punctatus edwardsii)
- Plains Hognose Snake (Heterodon nasicus plains)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Eastern Milk Snake (Lampropeltis triangulum)
- Northern Water Snake (Nerodia sipedon sipedon)
- Smooth Green Snake (Opheodrys vernalis)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Western Fox Snake (Pantherophis ramspotti)
- Bullsnake (Pituophis catenifer sayi)
- Texas Brown Snake (Storeria dekayi texana)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Black Hills Red-bellied Snake (Storeria occipitomaculata pahasapae)
- Red-sided Garter Snake (Thamnophis sirtalis parietalis)
- Plains Garter Snake (Thamnophis sirtalis radix)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
- Lined Snake (Tropidoclonion lineatum)
Venomous:
- Southern Copperhead (Agkistrodon contortrix contortrix )-Venomous
- Western Cottonmouth (Agkistrodon piscivorous leucostoma)-Venomous
- Northern Cottonmouth (Agkistrodon piscivorous piscivorous )-Venomous
Eastern Diamondback Rattlesnake (Crotalus adamanteus)-Venomous
- Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
Dusky Pygmy Rattlesnake (Sistrurus miliarius barbouri)-Venomous
- Western Pygmy Rattlesnake (Sistrurus miliarius streckeri)-Venomous
Non-venomous:
- Midwest Worm Snake (Carphophis amoenus helenae)
- Northern Scarlet Snake (Cemophora coccinea copei)
- Black-masked Racer (Coluber constrictor latrunculus)
- Southern Black Racer (Coluber constrictor priapus)
- Mississippi Ring-necked Snake (Diadophis punctatus stictogenys)
- Eastern Indigo Snake (Drymarchon corais couperi)
- Western Mud Snake (Farancia abacura reinwardtii)
- Common Rainbow Snake (Farancia erytrogramma erytrogramma)
- Rough Earth Snake (Haldea striatula)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Southern Hognose Snake (Heterodon simus)
- Prairie Kingsnake (Lampropeltis calligaster)
- Mole Kingsnake (Lampropeltis rhombomaculata)
- Peninsula Kingsnake (Lampropeltis getula peninsula)
- Black Kingsnake (Lampropeltis getula black)
- Broad Banded Water Snake (Nerodia fasciata confluens)
- Rough Green Snake (Opheodrys aestivus)
- Corn Snake (Pantherophis guttata guttata)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Gray Rat Snake (Pantherophis alleghaniensis gray)
- Black Pine Snake (Pituophis melanoleucus lodingi)
- Graham's Crayfish Snake (Regina grahamii)
- Queen Snake (Regina septemvittata)
- Pine Woods Snake (Rhadinea flavilata)
- Midland Brown Snake (Storeria dekay wrightorum)
- Florida Red-bellied Snake (Storeria occipitomaculata obscura)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Southeastern Crowned Snake (Tantilla coronata)
- Western Ribbon Snake (Thamnophis proximus proximus)
- Eastern Ribbon Snake (Thamnophis sauritus sauritus)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
- Western Smooth Earth Snake (Virginia valeriae elegans)
- Eastern Smooth Earth Snake (Virginia valeriae valeriae)
Venomous:
- Southern Copperhead (Agkistrodon contortrix contortrix )-Venomous
- Western Cottonmouth (Agkistrodon piscivorous leucostoma)-Venomous
- Northern Cottonmouth (Agkistrodon piscivorous piscivorous )-Venomous
- Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
- Western Pygmy Rattlesnake (Sistrurus miliarius streckeri)-Venomous
Non-venomous:
- Northern Scarlet Snake (Cemophora coccinea copei)
Eastern Yellow-bellied Racer (Coluber constrictor flaviventris)
- Southern Black Racer (Coluber constrictor priapus)
- Prairie Ring-necked Snake (Diadophis punctatus arnyi)
- Mississippi Ring-necked Snake (Diadophis punctatus stictogenys)
- Western Mud Snake (Farancia abacura reinwardtii)
- Rough Earth Snake (Haldea striatula)
- Dusty Hognose Snake (Heterodon nasicus dusty)
- Plains Hognose Snake (Heterodon nasicus plains)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Prairie Kingsnake (Lampropeltis calligaster)
- Blotched Water Snake (Nerodia erythrogaster blotched)
- Broad Banded Water Snake (Nerodia fasciata confluens)
- Northern Water Snake (Nerodia sipedon sipedon)
- Rough Green Snake (Opheodrys aestivus)
- Smooth Green Snake (Opheodrys vernalis)
- Great Plains Rat Snake (Pantherophis emoryi)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Gray Rat Snake (Pantherophis alleghaniensis gray)
- Western Fox Snake (Pantherophis ramspotti)
- Bullsnake (Pituophis catenifer sayi)
- Graham's Crayfish Snake (Regina grahamii)
- Queen Snake (Regina septemvittata)
- Western Ground Snake (Sonora semiannulata)
- Texas Brown Snake (Storeria dekayi texana)
- Midland Brown Snake (Storeria dekay wrightorum)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Flat Headed Snake (Tantilla gracilis)
- Western Ribbon Snake (Thamnophis proximus proximus)
- Red-sided Garter Snake (Thamnophis sirtalis parietalis)
- Plains Garter Snake (Thamnophis sirtalis radix)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
- Lined Snake (Tropidoclonion lineatum)
- Western Smooth Earth Snake (Virginia valeriae elegans)
Venomous:
Non-venomous:
Eastern Yellow-bellied Racer (Coluber constrictor flaviventris)
- Plains Hognose Snake (Heterodon nasicus plains)
- Smooth Green Snake (Opheodrys vernalis)
- Bullsnake (Pituophis catenifer sayi)
- Wandering Garter Snake (Thamnophis elegans vagrans)
- Valley Garter Snake (Thamnophis sirtalis fitchi)
- Red-sided Garter Snake (Thamnophis sirtalis parietalis)
- Plains Garter Snake (Thamnophis sirtalis radix)
Venomous:
Non-venomous:
Eastern Yellow-bellied Racer (Coluber constrictor flaviventris)
- Prairie Ring-necked Snake (Diadophis punctatus arnyi)
- Plains Hognose Snake (Heterodon nasicus plains)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Prairie Kingsnake (Lampropeltis calligaster)
- Central Plains Milk Snake (Lampropeltis gentilis)
- Western Coachwhip Snake (Masticophis flagellum testaceus)
- Northern Water Snake (Nerodia sipedon sipedon)
- Smooth Green Snake (Opheodrys vernalis)
- Great Plains Rat Snake (Pantherophis emoryi)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Western Fox Snake (Pantherophis ramspotti)
- Bullsnake (Pituophis catenifer sayi)
- Graham's Crayfish Snake (Regina grahamii)
- Texas Brown Snake (Storeria dekayi texana)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Wandering Garter Snake (Thamnophis elegans vagrans)
- Western Ribbon Snake (Thamnophis proximus proximus)
- Red-sided Garter Snake (Thamnophis sirtalis parietalis)
- Plains Garter Snake (Thamnophis sirtalis radix)
- Lined Snake (Tropidoclonion lineatum)
Venomous:
- Mojave Desert Sidewinder (Crotalus cerastes cerastes)-Venomous
- Great Basin Rattlesnake (Crotalus oreganus lutosus)-Venomous
- Southwestern Speckled Rattlesnake (Crotalus pyrrhus)-Venomous
- Northern Mohave Rattlesnake (Crotalus scutulatus scutulatus)-Venomous
- Panamint Rattlesnake (Crotalus stephensi)-Venomous
Non-venomous:
- Mojave Glossy Snake (Arizona elegans candida)
- Desert Glossy Snake (Arizona elegans eburnata)
- Northern Rubber Boa (Charina bottae bottae)
- Mojave Shovel-nosed Snake (Chionactis occipitalis occipitalis )
- Nevada Shovel-nosed Snake (Sonora occipitalis talpina )
Northern Desert Night Snake (Hypsiglena chlorophaea deserticola)
Arizona Mountain Kingsnake (Lampropeltis pyromelana pyromelana)
- Mohave Patch-nosed Snake (Salvadora hexalepis mojavensis)
- Western Ground Snake (Sonora semiannulata)
- Southwestern Black-headed Snake (Tantilla hobartsmithi)
- Sierra Garter Snake (Thamnophis couchii)
- Mountain Garter Snake (Thamnophis elegans elegans)
- Wandering Garter Snake (Thamnophis elegans vagrans)
- Valley Garter Snake (Thamnophis sirtalis fitchi)
- Sonoran Lyresnake (Trimorphodon lambda)
Venomous:
Non-venomous:
- Eastern Milk Snake (Lampropeltis triangulum)
- Northern Water Snake (Nerodia sipedon sipedon)
- Smooth Green Snake (Opheodrys vernalis)
- Northern Brown Snake (Storeria dekayi dekayi)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Northern Ribbon Snake (Thamnophis sauritus septentrionalis)
- Eastern Ribbon Snake (Thamnophis sauritus sauritus)
- Maritime Garter Snake (Thamnophis sirtalis pallidula)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
Venomous:
Southern Copperhead (Agkistrodon contortrix contortrix)-Venomous
Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
Non-venomous:
- Southern Ring-necked Snake (Diadophis punctatus punctatus)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Eastern Kingsnake (Lampropeltis getula eastern)
- Eastern Milk Snake (Lampropeltis triangulum)
- Northern Water Snake (Nerodia sipedon sipedon)
- Rough Green Snake (Opheodrys aestivus)
- Smooth Green Snake (Opheodrys vernalis)
- Corn Snake (Pantherophis guttata guttata)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Northern Pine Snake (Pituophis melanoleucus melanoleucus)
- Queen Snake (Regina septemvittata)
- Northern Brown Snake (Storeria dekayi dekayi)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Eastern Ribbon Snake (Thamnophis sauritus sauritus)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
- Eastern Smooth Earth Snake (Virginia valeriae valeriae)
Venomous:
Banded Rock Rattlesnake (Crotalus lepidus klauberi)-Venomous
Mottled Rock Rattlesnake (Crotalus lepidus lepidus)-Venomous
Northern Black-tailed Rattlesnake (Crotalus molossus molossus)-Venomous
Northern Mohave Rattlesnake (Crotalus scutulatus scutulatus)-Venomous
New Mexico Ridge-nosed Rattlesnake (Crotalus willardi obscurus)-Venomous
Arizona Coral Snake (Micruroides euryxantha euryxantha)-Venomous
Non-venomous:
Eastern Yellow-bellied Racer (Coluber constrictor flaviventris)
- Western Yellow-bellied Racer (Coluber constrictor mormon)
- Prairie Ring-necked Snake (Diadophis punctatus arnyi)
- Plains Hognose Snake (Heterodon nasicus plains)
- San Diego Night Snake (Hypsiglena ochrorhyncha klauberi)
- Gray-banded Kingsnake (Lampropeltis alterna)
Arizona Mountain Kingsnake (Lampropeltis pyromelana pyromelana)
- Western Coachwhip Snake (Masticophis flagellum testaceus)
- Desert Striped Whipsnake (Masticophis taeniatus taeniatus)
- Blotched Water Snake (Nerodia erythrogaster blotched)
- Smooth Green Snake (Opheodrys vernalis)
- Great Plains Rat Snake (Pantherophis emoryi)
- Bullsnake (Pituophis catenifer sayi)
- New Mexico Blind Snake (Rena dissectus)
- Trans-Pecos Blind Snake (Rena humilus segregus)
- Long-nosed Snake (Rhinocheilus lecontei)
Big Bend Patch-nosed Snake (Salvadora hexalepis deserticola)
Western Black-necked Garter Snake (Thamnophis cyrtopsis cyrtopsis)
- Aridland Ribbon Snake (Thamnophis proximus diabolicus)
- Plains Garter Snake (Thamnophis sirtalis radix)
- Sonoran Lyresnake (Trimorphodon lambda)
- Texas Lyresnake (Trimorphodon vilkinsonii)
- Lined Snake (Tropidoclonion lineatum)
Venomous:
Southern Copperhead (Agkistrodon contortrix contortrix)-Venomous
Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
Non-venomous:
- Eastern Hognose Snake (Heterodon piatirhinos)
- Eastern Milk Snake (Lampropeltis triangulum)
- Northern Water Snake (Nerodia sipedon sipedon)
- Smooth Green Snake (Opheodrys vernalis)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Queen Snake (Regina septemvittata)
- Northern Brown Snake (Storeria dekayi dekayi)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Short-headed Garter Snake (Thamnophis brachystoma)
- Northern Ribbon Snake (Thamnophis sauritus septentrionalis)
- Eastern Ribbon Snake (Thamnophis sauritus sauritus)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
Venomous:
Southern Copperhead (Agkistrodon contortrix contortrix)-Venomous
Eastern Diamondback Rattlesnake (Crotalus adamanteus)-Venomous
Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
Carolina Pygmy Rattlesnake (Sistrurus miliarius miliarius)-Venomous
- Northern Cottonmouth (Agkistrodon piscivorous piscivorous )-Venomous
Non-venomous:
- Southern Black Racer (Coluber constrictor priapus)
- Northern Ring-necked Snake (Diadophis punctatus edwardsii)
- Southern Ring-necked Snake (Diadophis punctatus punctatus)
- Eastern Mud Snake (Farancia abacura abacura)
- Common Rainbow Snake (Farancia erytrogramma erytrogramma)
- Rough Earth Snake (Haldea striatula)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Southern Hognose Snake (Heterodon simus)
- Mole Kingsnake (Lampropeltis rhombomaculata)
- Eastern Kingsnake (Lampropeltis getula eastern)
- Black Kingsnake (Lampropeltis getula black)
- Scarlet Kingsnake (Lampropeltis elapsoides)
- Eastern Milk Snake (Lampropeltis triangulum)
- Carolina Black Swamp Snake (Liodytes pygaea paludis)
- Eastern Glossy Swamp Snake (Liodytes rigida rigida)
- Eastern Coachwhip Snake (Masticophis flagellum flagellum)
- Red-bellied Water Snake (Nerodia erythrogaster)
- Banded Water Snake (Nerodia fasciata fasciata)
- Midland Water Snake (Nerodia sipedon pleuralis)
- Northern Water Snake (Nerodia sipedon sipedon)
- Brown Water Snake (Nerodia taxispilota)
- Rough Green Snake (Opheodrys aestivus)
- Corn Snake (Pantherophis guttata guttata)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Yellow Rat Snake (Pantherophis alleghaniensis yellow)
- Gray Rat Snake (Pantherophis alleghaniensis gray)
- Northern Pine Snake (Pituophis melanoleucus melanoleucus)
- Queen Snake (Regina septemvittata)
- Pine Woods Snake (Rhadinea flavilata)
- Northern Brown Snake (Storeria dekayi dekayi)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Southeastern Crowned Snake (Tantilla coronata)
- Eastern Ribbon Snake (Thamnophis sauritus sauritus)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
- Eastern Smooth Earth Snake (Virginia valeriae valeriae)
Venomous:
Non-venomous:
Eastern Yellow-bellied Racer (Coluber constrictor flaviventris)
- Plains Hognose Snake (Heterodon nasicus plains)
- Smooth Green Snake (Opheodrys vernalis)
- Bullsnake (Pituophis catenifer sayi)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Red-sided Garter Snake (Thamnophis sirtalis parietalis)
- Plains Garter Snake (Thamnophis sirtalis radix)
Venomous:
Southern Copperhead (Agkistrodon contortrix contortrix)-Venomous
Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
Non-venomous:
- Blue Racer (Coluber constrictor foxi)
- Northern Ring-necked Snake (Diadophis punctatus edwardsii)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Black Kingsnake (Lampropeltis getula black)
- Eastern Milk Snake (Lampropeltis triangulum)
- Copper-bellied Water Snake
- Lake Erie Water Snake (Nerodia sipedon insularum)
- Northern Water Snake (Nerodia sipedon sipedon)
- Rough Green Snake (Opheodrys aestivus)
- Smooth Green Snake (Opheodrys vernalis)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Eastern Fox Snake (Pantherophis vulpina )
- Queen Snake (Regina septemvittata)
- Northern Brown Snake (Storeria dekayi dekayi)
- Midland Brown Snake (Storeria dekay wrightorum)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Eastern Ribbon Snake (Thamnophis sauritus sauritus)
- Plains Garter Snake (Thamnophis sirtalis radix)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
- Eastern Smooth Earth Snake (Virginia valeriae valeriae)
Venomous:
Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
Southern Copperhead (Agkistrodon contortrix contortrix)-Venomous
Broad-banded Copperhead (Agkistrodon contortrix laticinctus)-Venomous
Western Cottonmouth (Agkistrodon piscivorous leucostoma)-Venomous
- Northern Cottonmouth (Agkistrodon piscivorous piscivorous )-Venomous
- Western Pygmy Rattlesnake (Sistrurus miliarius streckeri)-Venomous
Non-venomous:
- Prairie Ring-necked Snake (Diadophis punctatus arnyi)
- Western Mud Snake (Farancia abacura reinwardtii)
- Dusty Hognose Snake (Heterodon nasicus dusty)
- Plains Hognose Snake (Heterodon nasicus plains)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Texas Night Snake (Hypsiglena jani texana)
- Prairie Kingsnake (Lampropeltis calligaster)
- Central Plains Milk Snake (Lampropeltis gentilis)
- Yellow-bellied Water Snake (Nerodia erythrogaster)
- Blotched Water Snake (Nerodia erythrogaster blotched)
- Broad Banded Water Snake (Nerodia fasciata confluens)
- Diamond-backed Water Snake (Nerodia rhombifer)
- Rough Green Snake (Opheodrys aestivus)
- Great Plains Rat Snake (Pantherophis emoryi)
- Texas Rat Snake (Pantherophis obsoleta lindheimeri)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Bullsnake (Pituophis catenifer sayi)
- Graham's Crayfish Snake (Regina grahamii)
- New Mexico Blind Snake (Rena dissectus)
- Long-nosed Snake (Rhinocheilus lecontei)
- Western Ground Snake (Sonora semiannulata)
- Texas Ground Snake (Sonora taylori)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Flat Headed Snake (Tantilla gracilis)
- Texas Garter Snake (Thamnophis sirtalis annectens)
- Red-sided Garter Snake (Thamnophis sirtalis parietalis)
- Plains Garter Snake (Thamnophis sirtalis radix)
- Lined Snake (Tropidoclonion lineatum)
- Western Smooth Earth Snake (Virginia valeriae elegans)
Venomous:
Great Basin Rattlesnake (Crotalus oreganus lutosus)-Venomous
- Northern pacific rattlesnake (Crotalus oreganus oreganus)-Venomous
Non-venomous:
- Northern Rubber Boa (Charina bottae bottae)
- Western Yellow-bellied Racer (Coluber constrictor mormon)
- Forest Sharp-tailed Snake (Contia longicaudae)
- Common Sharp-tailed Snake (Contia tenuis)
- Northwestern Ring-necked Snake
- Northern Desert Night Snake
- California Kingsnake (Lampropeltis californiae)
- California Mountain Kingsnake (Lampropeltis zonata)
- Desert Striped Whipsnake (Masticophis taeniatus taeniatus)
- Pacific Gopher Snake (Pituophis catenifer catenifer)
- Great Basin Gopher Snake (Pituophis catenifer deserticola)
- Western Ground Snake (Sonora semiannulata)
- Oregon Garter Snake (Thamnophis atratus hydrophilus)
- Mountain Garter Snake (Thamnophis elegans elegans)
- Coast Garter Snake (Thamnophis elegans terrestris)
- Wandering Garter Snake (Thamnophis elegans vagrans)
- Northwestern Garter Snake (Thamnophis ordinoides)
- Red-spotted Garter Snake (Thamnophis sirtalis concinnus)
- Valley Garter Snake (Thamnophis sirtalis fitchi)
Venomous:
Southern Copperhead (Agkistrodon contortrix contortrix)-Venomous
Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
Non-venomous:
- Eastern Hognose Snake (Heterodon piatirhinos)
- Eastern Milk Snake (Lampropeltis triangulum)
- Northern Water Snake (Nerodia sipedon sipedon)
- Rough Green Snake (Opheodrys aestivus)
- Smooth Green Snake (Opheodrys vernalis)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Queen Snake (Regina septemvittata)
- Northern Brown Snake (Storeria dekayi dekayi)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Short-headed Garter Snake (Thamnophis brachystoma)
- Northern Ribbon Snake (Thamnophis sauritus septentrionalis)
- Eastern Ribbon Snake (Thamnophis sauritus sauritus)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
- Eastern Smooth Earth Snake (Virginia valeriae valeriae)
Venomous:
Non-venomous:
- Eastern Hognose Snake (Heterodon piatirhinos)
- Eastern Milk Snake (Lampropeltis triangulum)
- Northern Water Snake (Nerodia sipedon sipedon)
- Smooth Green Snake (Opheodrys vernalis)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Northern Brown Snake (Storeria dekayi dekayi)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Eastern Ribbon Snake (Thamnophis sauritus sauritus)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
Venomous:
Southern Copperhead (Agkistrodon contortrix contortrix)-Venomous
Northern Cottonmouth (Agkistrodon piscivorous piscivorous)-Venomous
Eastern Diamondback Rattlesnake (Crotalus adamanteus)-Venomous
Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
Carolina Pygmy Rattlesnake (Sistrurus miliarius miliarius)-Venomous
Non-venomous:
- Southern Black Racer (Coluber constrictor priapus)
- Southern Ring-necked Snake (Diadophis punctatus punctatus)
- Eastern Mud Snake (Farancia abacura abacura)
- Common Rainbow Snake (Farancia erytrogramma erytrogramma)
- Rough Earth Snake (Haldea striatula)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Southern Hognose Snake (Heterodon simus)
- Mole Kingsnake (Lampropeltis rhombomaculata)
- Eastern Kingsnake (Lampropeltis getula eastern)
- Scarlet Kingsnake (Lampropeltis elapsoides)
- Carolina Black Swamp Snake (Liodytes pygaea paludis)
- Eastern Glossy Swamp Snake (Liodytes rigida rigida)
- Eastern Coachwhip Snake (Masticophis flagellum flagellum)
- Red-bellied Water Snake (Nerodia erythrogaster)
- Banded Water Snake (Nerodia fasciata fasciata)
- Midland Water Snake (Nerodia sipedon pleuralis)
- Brown Water Snake (Nerodia taxispilota)
- Rough Green Snake (Opheodrys aestivus)
- Corn Snake (Pantherophis guttata guttata)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Yellow Rat Snake (Pantherophis alleghaniensis yellow)
- Northern Pine Snake (Pituophis melanoleucus melanoleucus)
- Florida Pine Snake (Pituophis melanoleucus mugitus)
- Queen Snake (Regina septemvittata)
- Pine Woods Snake (Rhadinea flavilata)
- Northern Brown Snake (Storeria dekayi dekayi)
- Florida Red-bellied Snake (Storeria occipitomaculata obscura)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Southeastern Crowned Snake (Tantilla coronata)
- Eastern Ribbon Snake (Thamnophis sauritus sauritus)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
- Eastern Smooth Earth Snake (Virginia valeriae valeriae)
Venomous:
Non-venomous:
Eastern Yellow-bellied Racer (Coluber constrictor flaviventris)
- Prairie Ring-necked Snake (Diadophis punctatus arnyi)
- Plains Hognose Snake (Heterodon nasicus plains)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Northern Water Snake (Nerodia sipedon sipedon)
- Smooth Green Snake (Opheodrys vernalis)
- Western Fox Snake (Pantherophis ramspotti)
- Bullsnake (Pituophis catenifer sayi)
- Texas Brown Snake (Storeria dekayi texana)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
Red-striped Ribbon Snake (Thamnophis proximus rubrilineatus )
- Plains Garter Snake (Thamnophis sirtalis radix)
Venomous:
Southern Copperhead (Agkistrodon contortrix contortrix)-Venomous
Western Cottonmouth (Agkistrodon piscivorous leucostoma)-Venomous
- Northern Cottonmouth (Agkistrodon piscivorous piscivorous )-Venomous
- Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
- Western Pygmy Rattlesnake (Sistrurus miliarius streckeri)-Venomous
Non-venomous:
Eastern Yellow-bellied Racer (Coluber constrictor flaviventris)
- Midwest Worm Snake (Carphophis amoenus helenae)
- Northern Scarlet Snake (Cemophora coccinea copei)
- Southern Black Racer (Coluber constrictor priapus)
- Northern Ring-necked Snake (Diadophis punctatus edwardsii)
Mississippi Ring-necked Snake (Diadophis punctatus stictogenys)
- Western Mud Snake (Farancia abacura reinwardtii)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Prairie Kingsnake (Lampropeltis calligaster)
- Mole Kingsnake (Lampropeltis rhombomaculata)
- Speckled Kingsnake (Lampropeltis getula speckled)
- Black Kingsnake (Lampropeltis getula black)
- Scarlet Kingsnake (Lampropeltis elapsoides)
- Eastern Milk Snake (Lampropeltis triangulum)
- Eastern Coachwhip Snake (Masticophis flagellum flagellum)
- Mississippi Green Water Snake (Nerodia cyclopion)
- Yellow-bellied Water Snake (Nerodia erythrogaster yellow)
- Copper-bellied Water Snake
- Broad Banded Water Snake (Nerodia fasciata confluens)
- Diamond-backed Water Snake (Nerodia rhombifer)
- Midland Water Snake (Nerodia sipedon pleuralis)
- Northern Water Snake (Nerodia sipedon sipedon)
- Rough Green Snake (Opheodrys aestivus)
- Corn Snake (Pantherophis guttata guttata)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Northern Pine Snake (Pituophis melanoleucus melanoleucus)
- Queen Snake (Regina septemvittata)
- Midland Brown Snake (Storeria dekay wrightorum)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Southeastern Crowned Snake (Tantilla coronata)
- Western Ribbon Snake (Thamnophis proximus proximus)
- Eastern Ribbon Snake (Thamnophis sauritus sauritus)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
- Western Smooth Earth Snake (Virginia valeriae elegans)
- Eastern Smooth Earth Snake (Virginia valeriae valeriae)
Venomous:
Southern Copperhead (Agkistrodon contortrix contortrix)-Venomous
Broad-banded Copperhead (Agkistrodon contortrix laticinctus)-Venomous
Trans-Pecos Copperhead (Agkistrodon contortrix pictigaster)-Venomous
- Northern Cottonmouth (Agkistrodon piscivorous piscivorous )-Venomous
- Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
- Banded Rock Rattlesnake (Crotalus lepidus klauberi)-Venomous
Mottled Rock Rattlesnake (Crotalus lepidus lepidus)-Venomous
Eastern Black-tailed Rattlesnake (Crotalus molossus ornatus)-Venomous
- Northern Mohave Rattlesnake (Crotalus scutulatus scutulatus)-Venomous
- Texas Coral Snake (Micrurus tener)-Venomous
- Western Pygmy Rattlesnake (Sistrurus miliarius streckeri)-Venomous
Non-venomous:
- Western Worm Snake (Carphophis vermis)
- Northern Scarlet Snake (Cemophora coccinea copei)
- Texas Scarlet Snake (Cemophora coccinea lineri)
- Buttermilk Racer (Coluber constrictor anthicus)
Eastern Yellow-bellied Racer (Coluber constrictor flaviventris)
- Southern Black Racer (Coluber constrictor priapus)
- Black-striped Snake (Coniophanes imperialis)
- Prairie Ring-necked Snake (Diadophis punctatus arnyi)
Mississippi Ring-necked Snake (Diadophis punctatus stictogenys)
- Western Mud Snake (Farancia abacura reinwardtii)
- Tamaulipan Hook-nosed Snake (Ficimia streckeri)
- Rough Earth Snake (Haldea striatula)
- Dusty Hognose Snake (Heterodon nasicus dusty)
- Plains Hognose Snake (Heterodon nasicus plains)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Texas Night Snake (Hypsiglena jani texana)
- Braminy Blind Snake (Indotyphlops braminus)
- Gray-banded Kingsnake (Lampropeltis alterna)
- Prairie Kingsnake (Lampropeltis calligaster)
- Speckled Kingsnake (Lampropeltis getula speckled)
- Mexican Milk Snake (Lampropeltis annulata)
- Central Plains Milk Snake (Lampropeltis gentilis)
- Northern Cat-eyed Snake (Leptodeira septentrionalis)
- Gulf Glossy Swamp Snake (Liodytes rigida sinicola)
- Eastern Coachwhip Snake (Masticophis flagellum flagellum)
- Western Coachwhip Snake (Masticophis flagellum testaceus)
- Ruthven's Whipsnake (Masticophis schotti ruthveni)
- Schott's Whipsnake (Masticophis schotti schotti)
- Central Texas Whipsnake (Masticophis taeniatus girardi)
- Gulf Saltmarsh Snake (Nerodia clarkii clarkii)
- Mississippi Green Water Snake (Nerodia cyclopion)
- Yellow-bellied Water Snake (Nerodia erythrogaster yellow)
- Blotched Water Snake (Nerodia erythrogaster blotched)
- Broad Banded Water Snake (Nerodia fasciata confluens)
- Banded Water Snake (Nerodia fasciata fasciata)
- Brazos River Water Snake (Nerodia harteri )
- Concho Water Snake (Nerodia harteri)
- Rough Green Snake (Opheodrys aestivus)
- Smooth Green Snake (Opheodrys vernalis)
- Baird's Rat Snake (Pantherophis bairdi)
- Great Plains Rat Snake (Pantherophis emoryi)
- Louisiana Corn Snake (Pantherophis slowinskii)
- Texas Rat Snake (Pantherophis obsoleta lindheimeri)
- Sonoran Gopher Snake (Pituophis catenifer affinis)
- Louisiana Pine Snake (Pituophis ruthveni)
- Graham's Crayfish Snake (Regina grahamii)
- New Mexico Blind Snake (Rena dissectus)
Big Bend Patch-nosed Snake (Salvadora hexalepis deserticola)
Texas Ground Snake (Sonora taylori)
- Texas Brown Snake (Storeria dekayi texana)
- Florida Red-bellied Snake (Storeria occipitomaculata obscura)
- Mexican Black-headed Snake (Tantilla atriceps)
- Trans-Pecos Black Headed Snake (Tantilla cucullata)
- Flat Headed Snake (Tantilla gracilis)
- Southwestern Black-headed Snake (Tantilla hobartsmithi)
Western Black-necked Garter Snake (Thamnophis cyrtopsis cyrtopsis)
Eastern Black-necked Garter Snake (Thamnophis cyrtopsis ocellatus)
- Aridland Ribbon Snake (Thamnophis proximus diabolicus)
- Gulf Coast Ribbon Snake (Thamnophis proximus orarius)
- Western Ribbon Snake (Thamnophis proximus proximus)
- Red-striped Ribbon Snake (Thamnophis proximus rubrilineatus)
- Texas Garter Snake (Thamnophis sirtalis annectens)
- Red-sided Garter Snake (Thamnophis sirtalis parietalis)
- Plains Garter Snake (Thamnophis sirtalis radix)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
- Texas Lyresnake (Trimorphodon vilkinsonii)
- Western Smooth Earth Snake (Virginia valeriae elegans)
- Bullsnake (Pituophis catenifer sayi)
- Diamond-backed Water Snake (Nerodia rhombifer)
Venomous:
Midget Faded Rattlesnake (Crotalus oreganus concolor)-Venomous
- Great Basin Rattlesnake (Crotalus oreganus lutosus)-Venomous
- Southwestern Speckled Rattlesnake (Crotalus pyrrhus)-Venomous
- Northern Mohave Rattlesnake (Crotalus scutulatus scutulatus)-Venomous
Non-venomous:
- Desert Glossy Snake (Arizona elegans eburnata)
- Northern Desert Night Snake (Hypsiglena chlorophaea deserticola)
- California Kingsnake (Lampropeltis californiae)
Utah Mountain Kingsnake (Lampropeltis pyromelana infralabialis)
- Smooth Green Snake (Opheodrys vernalis)
- Great Plains Rat Snake (Pantherophis emoryi)
- Mohave Patch-nosed Snake (Salvadora hexalepis mojavensis)
- Western Ground Snake (Sonora semiannulata)
- Southwestern Black-headed Snake (Tantilla hobartsmithi)
- Western Black-headed Snake (Tantilla planiceps)
- Western Black-necked Garter Snake (Thamnophis cyrtopsis cyrtopsis)
- Wandering Garter Snake (Thamnophis elegans vagrans)
- Valley Garter Snake (Thamnophis sirtalis fitchi)
- Red-sided Garter Snake (Thamnophis sirtalis parietalis)
- Sonoran Lyresnake (Trimorphodon lambda)
Venomous:
Non-venomous:
- Eastern Milk Snake (Lampropeltis triangulum)
- Northern Water Snake (Nerodia sipedon sipedon)
- Smooth Green Snake (Opheodrys vernalis)
- Northern Brown Snake (Storeria dekayi dekayi)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Northern Ribbon Snake (Thamnophis sauritus septentrionalis)
- Eastern Ribbon Snake (Thamnophis sauritus sauritus)
- Maritime Garter Snake (Thamnophis sirtalis pallidula)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
Venomous:
Northern Cottonmouth (Agkistrodon piscivorous piscivorous)-Venomous
Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
Southern Copperhead (Agkistrodon contortrix contortrix)-Venomous
Non-venomous:
- Northern Ring-necked Snake (Diadophis punctatus edwardsii)
- Southern Ring-necked Snake (Diadophis punctatus punctatus)
- Eastern Mud Snake (Farancia abacura abacura)
- Common Rainbow Snake (Farancia erytrogramma erytrogramma)
- Rough Earth Snake (Haldea striatula)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Mole Kingsnake (Lampropeltis rhombomaculata)
- Eastern Kingsnake (Lampropeltis getula eastern)
- Black Kingsnake (Lampropeltis getula black)
- Scarlet Kingsnake (Lampropeltis elapsoides)
- Eastern Milk Snake (Lampropeltis triangulum)
- Eastern Glossy Swamp Snake (Liodytes rigida rigida)
- Red-bellied Water Snake (Nerodia erythrogaster)
- Midland Water Snake (Nerodia sipedon pleuralis)
- Northern Water Snake (Nerodia sipedon sipedon)
- Brown Water Snake (Nerodia taxispilota)
- Rough Green Snake (Opheodrys aestivus)
- Smooth Green Snake (Opheodrys vernalis)
- Corn Snake (Pantherophis guttata guttata)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Northern Pine Snake (Pituophis melanoleucus melanoleucus)
- Queen Snake (Regina septemvittata)
- Northern Brown Snake (Storeria dekayi dekayi)
- Midland Brown Snake (Storeria dekay wrightorum)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Southeastern Crowned Snake (Tantilla coronata)
- Eastern Ribbon Snake (Thamnophis sauritus sauritus)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
- Mountain Earth Snake (Virginia valeriae pulchra)
- Eastern Smooth Earth Snake (Virginia valeriae valeriae)
Venomous:
Non-venomous:
- Common Sharp-tailed Snake (Contia tenuis)
- Northwestern Ring-necked Snake (Diadophis punctatus occidentalis)
- Northern Desert Night Snake (Hypsiglena chlorophaea deserticola)
- Desert Striped Whipsnake (Masticophis taeniatus taeniatus)
- Pacific Gopher Snake (Pituophis catenifer catenifer)
- Great Basin Gopher Snake (Pituophis catenifer deserticola)
- Wandering Garter Snake (Thamnophis elegans vagrans)
- Northwestern Garter Snake (Thamnophis ordinoides)
- Red-spotted Garter Snake (Thamnophis sirtalis concinnus)
- Valley Garter Snake (Thamnophis sirtalis fitchi)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
Venomous:
Southern Copperhead (Agkistrodon contortrix contortrix)-Venomous
Timber Rattlesnake (Crotalus horridus atricaudatus)-Venomous
Non-venomous:
- Midwest Worm Snake (Carphophis amoenus helenae)
- Southern Black Racer (Coluber constrictor priapus)
- Northern Ring-necked Snake (Diadophis punctatus edwardsii)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Eastern Kingsnake (Lampropeltis getula eastern)
- Black Kingsnake (Lampropeltis getula black)
- Eastern Milk Snake (Lampropeltis triangulum)
- Northern Water Snake (Nerodia sipedon sipedon)
- Rough Green Snake (Opheodrys aestivus)
- Corn Snake (Pantherophis guttata guttata)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Northern Pine Snake (Pituophis melanoleucus melanoleucus)
- Queen Snake (Regina septemvittata)
- Northern Brown Snake (Storeria dekayi dekayi)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Eastern Ribbon Snake (Thamnophis sauritus sauritus)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
- Mountain Earth Snake (Virginia valeriae pulchra)
- Eastern Smooth Earth Snake (Virginia valeriae valeriae)
Venomous:
Non-venomous:
- Blue Racer (Coluber constrictor foxi)
- Prairie Ring-necked Snake (Diadophis punctatus arnyi)
- Northern Ring-necked Snake (Diadophis punctatus edwardsii)
- Eastern Hognose Snake (Heterodon piatirhinos)
- Eastern Milk Snake (Lampropeltis triangulum)
- Northern Water Snake (Nerodia sipedon sipedon)
- Smooth Green Snake (Opheodrys vernalis)
- Black Rat Snake (Pantherophis alleghaniensis black)
- Western Fox Snake (Pantherophis ramspotti)
- Bullsnake (Pituophis catenifer sayi)
- Queen Snake (Regina septemvittata)
- Midland Brown Snake (Storeria dekay wrightorum)
- Northern Red-bellied Snake (Storeria occipitomaculata occipitomaculata)
- Western Ribbon Snake (Thamnophis proximus proximus)
- Northern Ribbon Snake (Thamnophis sauritus septentrionalis)
- Plains Garter Snake (Thamnophis sirtalis radix)
- Eastern Garter Snake (Thamnophis sirtalis sirtalis)
Venomous:
Non-venomous:
Eastern Yellow-bellied Racer (Coluber constrictor flaviventris)
- Plains Hognose Snake (Heterodon nasicus plains)
- Desert Striped Whipsnake (Masticophis taeniatus taeniatus)
- Smooth Green Snake (Opheodrys vernalis)
- Great Basin Gopher Snake (Pituophis catenifer deserticola)
- Bullsnake (Pituophis catenifer sayi)
- Black Hills Red-bellied Snake (Storeria occipitomaculata pahasapae)
- Plains Black-headed Snake (Tantilla nigriceps)
- Wandering Garter Snake (Thamnophis elegans vagrans)
- Valley Garter Snake (Thamnophis sirtalis fitchi)
- Red-sided Garter Snake (Thamnophis sirtalis parietalis)
- Plains Garter Snake (Thamnophis sirtalis radix)
