All 39 snake taxaReptile Database, The Reptile Database, Retrieved April 23, 2013 that are known to naturally occur in IndianaConant, Roger, and Collins, Joseph T. (1998). A field guide to reptiles and amphibians: eastern and central North America (4th ed.). Boston: Houghton Mifflin. p.616. Behler, John L., and King, F. W. (1979). The Audubon Society field guide to North American reptiles and amphibians (Chanticleer Press ed.). New York: Knopf. p.743. are tabulated below, along with their population ranges in the state,Minton, Sherman A., Jr. (2001). Amphibians and reptiles of Indiana (Rev. 2nd ed.). Indianapolis: Indiana Academy of Science. p.404. MacGowan, Brian J., and Kingsbury, Bruce A. (2001). Snakes of Indiana. West Lafayette: Purdue University. p.51. ASIN B0006RR7OY conservation status,Reptiles of Indiana , Wildlife Hotline, Retrieved April 23, 2013Indiana Herp Regulations, Indiana DNR, Retrieved April 23, 2013 and level of danger they pose to humans (upon biting them).
Photo Scientific name Common name State Distribution Conservation Status Threat to Humans Agkistrodon contortrix mokasen Northern copperhead southern 1/2 unknown moderate Agkistrodon piscivorus leucostoma Western cottonmouth Dubois and Harrison counties state endangered high Carphophis amoenus helenae Midwestern worm snake southern 1/2 unknown minimal Cemophora coccinea copei Northern scarlet snake Floyd county state endangered minimal Clonophis kirtlandii Kirtland's snake everywhere but southwest state endangered minimal Coluber constrictor foxii Blue racer northern 2/3 common minimal Coluber constrictor priapus Southern black racer southern 1/3 common minimal Crotalus horridus Timber rattlesnake southern 1/3 state endangered very high Diadophis punctatus edwardsii Northern ringneck snake everywhere but central 2/3 uncommon minimal Farancia abacura reinwardtii Western mud snake southwestern tip state endangered (extirpated) minimal Heterodon platirhinos Eastern hognose snake throughout uncommon minimal Lampropeltis calligaster calligaster Prairie kingsnake southwest, southcentral, and along western border uncommon minimal Lampropeltis nigra Black kingsnake southwestern 1/3 common minimal Lampropeltis triangulum syspila Red milk snake southwest common minimal Lampropeltis triangulum triangulum Eastern milk snake everywhere but southwest common minimal Nerodia erythrogaster neglecta Copperbelly water snake southern 1/3 and northeast corner state endangered, federally threatened minimal Nerodia rhombifer rhombifer Northern diamondback water snake southwestern corner abundant minimal Nerodia sipedon pleuralis Midland water snake southern 1/2 common minimal Nerodia sipedon sipedon Northern water snake throughout common minimal Opheodrys aestivus aestivus Northern rough green snake southern 1/3 special concern minimal Opheodrys vernalis blanchardi Western smooth green snake northwest state endangered minimal Pantherophis ramspotti Western Fox snake northwestern corner uncommon minimal Pantherophis alleghaniensis Gray rat snake throughout common minimal Pituophis catenifer sayi Bullsnake northwest uncommon minimal Regina septemvittata Queen snake everywhere but southwestern corner uncommon minimal Sistrurus catenatus catenatus Eastern massasauga rattlesnake northern 1/3 state endangered, federal candidate high Storeria dekayi dekayi Northern brown snake northeast corner abundant minimal Storeria dekayi wrightorum Midland brown snake throughout abundant minimal Storeria occipitomaculata occipitomaculata Northern redbelly snake everywhere but central 2/3 uncommon minimal Tantilla coronata Southeastern crowned snake Floyd and Clark counties state endangered minimal Thamnophis butleri Butler's garter snake northeast state endangered minimal Thamnophis proximus proximus Western ribbon snake everywhere but southeast and eastcentral special concern minimal Thamnophis radix Plains garter snake northwest uncommon minimal Thamnophis saurita saurita Eastern ribbon snake southwest and southcentral common minimal Thamnophis saurita septentrionalis Northern ribbon snake northern 2/3 common minimal Thamnophis sirtalis semifasciatus Chicago garter snake Porter county unknown minimal Thamnophis sirtalis sirtalis Eastern garter snake throughout abundant minimal Virginia valeriae elegans Western earth snake southwestern 1/3 uncommon minimal
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