Herps of Illinois

Red Milksnake(Lampropeltis triangulum syspila)

    To learn about the Reptiles and Amphibians of Illinois:

  1. Read the introduction to Illinois reptiles & amphibians.
  2. Click on the individual species listed in the tables below to see detailed information and photos of that species.
  3. For further information on the reptile and amphibian species of Illinois visit the Illinois Natural History Survey. This site documents the Illinois Natural History amphibian and reptile collection, educational materials and related research and projects. The Amphibian and Reptile Field Guide notes sitings, range map with some photos and provides the status (endangered, threatened or on the watch list) of the state's herps.
  4. Book List for information on Illinois reptiles and amphibians.
  5. List of Endangered and Threatened reptiles and amphibians.


Scientific Name Common Name
Caudata Salamanders
Ambystoma jeffersonianumJefferson Salamander
Ambystoma lateraleBlue-Spotted Salamander
Ambystoma maculatumSpotted Salamander
Ambystoma opacumMarbled Salamander
Ambystoma platineumSilvery Salamander
Ambystoma talpoideumMole Salamander
Ambystoma texanumSmallmouth Salamander
Ambystoma tigrinumTiger Salamander
Cryptobranchus alleganiensisHellbender
Desmognathus conantiDusky Salamander
Eurycea cirrigeraSouthern Two-Lined Salamander
Eurycea longicaudaLongtail Salamander
Eurycea lucifugaCave Salamander
Hemidactylium scutatumFour-Toed Salamander
Necturus maculosusMudpuppy
Notophthalmus viridescensEastern Newt
Plethodon cinereusRedback Salamander
Plethodon dorsalisZigzag Salamander
Plethodon glutinosusSlimy Salamander
Siren intermediaLesser Siren

Frogs and Toads

Scientific Name Common Name
Anura Frogs and Toads
Acris crepitansNorthern Cricket Frog
Bufo americanusAmerican Toad
Bufo fowleriFowler's Toad
Gastrophryne carolinensisEastern Narrowmouth Toad
Hyla avivocaBird-Voiced Treefrog
Hyla chrysoscelisCope's Gray Treefrog
Hyla cinereaGreen Treefrog
Hyla versicolorGray Treefrog
Hyla versicolor-chrysoscelisCopes Gray Treefrog
Pseudacris cruciferSpring Peeper
Pseudacris feriarumUpland Chorus Frog
Pseudacris streckeriStrecker's Chorus Frog
Pseudacris triseriataStriped Chorus Frog
Rana areolataCrawfish Frog
Rana blairiPlains Leopard Frog
Rana catesbeianaBullfrog
Rana clamitansGreen Frog
Rana palustrisPickerel Frog
Rana pipiensNorthern Leopard Frog
Rana sphenocephalaSouthern Leopard Frog
Rana sylvaticaWood Frog
Scaphiopus holbrookiiEastern Spadefoot


Scientific Name Common Name
Testudines Turtles
Apalone muticaSmooth Softshell
Apalone spiniferaSpiny Softshell
Chelydra serpentinaSnapping Turtle
Chrysemys pictaPainted Turtle
Clemmys guttataSpotted Turtle
Emydoidea blandingiiBlanding's Turtle
Graptemys geographicaCommon Map Turtle
Graptemys ouachitensisOuachita Map Turtle
Graptemys pseudogeographicaFalse Map Turtle
Kinosternon flavescensYellow Mud Turtle
Kinosternon subrubrumEastern Mud Turtle
Macroclemys temminckiiAlligator Snapping Turtle
Pseudemys concinnaRiver Cooter
Sternotherus odoratusCommon Musk Turtle
Terrapene carolinaEastern Box Turtle
Terrapene ornataOrnate Box Turtle
Trachemys scriptaSlider


Scientific Name Common Name
-Suborder: Sauria
Cnemidophorus sexlineatusSix-Lined Racerunner
Eumeces fasciatusFive-Lined Skink
Eumeces laticepsBroad-Headed Skink
Ophisaurus attenuatusSlender Glass Lizard
Sceloporus undulatusFence Lizard
Scincella lateralisGround Skink


Scientific Name Common Name
-Suborder: Serpentes
Agkistrodon contortrixCopperhead
Agkistrodon piscivorusCottonmouth
Carphophis amoenusWorm Snake
Cemophora coccineaScarlet Snake
Clonophis kirtlandiiKirtland's Snake
Coluber constrictorRacer
Crotalus horridusTimber Rattlesnake
Diadophis punctatusRingneck Snake
Elaphe guttataCorn Snake
Elaphe obsoletaRat Snake
Elaphe vulpinaFox Snake
Farancia abacuraMud Snake
Heterodon nasicusWestern Hognose Snake
Heterodon platirhinosEastern Hognose Snake
Lampropeltis calligasterPrairie Kingsnake
Lampropeltis getulaCommon Kingsnake
Lampropeltis triangulumMilksnake
Masticophis flagellumCoachwhip
Nerodia cyclopionMississippi Green Water Snake
Nerodia erythrogasterPlainbelly Water Snake
Nerodia fasciataSouthern Water Snake
Nerodia rhombiferDiamondback Water Snake
Nerodia sipedonNorthern Water Snake
Opheodrys aestivusRough Green Snake
Opheodrys vernalisSmooth Green Snake
Pituophis melanoleucusBull Snake
Regina grahamiiGraham's Crayfish Snake
Regina septemvittataQueen Snake
Sistrurus catenatusMassasauga
Storeria dekayiBrown Snake
Storeria occipitomaculataRedbelly Snake
Tantilla gracilisFlathead Snake
Thamnophis proximusWestern Ribbon Snake
Thamnophis radixPlains Garter Snake
Thamnophis sauritusEastern Ribbon Snake
Thamnophis sirtalisCommon Garter Snake
Tropidoclonion lineatumLined Snake
Virginia valeriaeSmooth Earth Snake