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Reptiles & Amphibians of St. Louis, MO

The reptiles & amphibians most often spotted near St. Louis, ranked by recent research-grade observations.

10,642
recent observations
50
species listed
50
reptiles & amphibians

Naturalists have logged 10,642 research-grade observations across the 50 most-recorded species near St. Louis. The most frequently seen is the American Toad, with 1,259 recorded sightings.

Most-observed reptiles & amphibians near St. Louis

American Toad
Anaxyrus americanus
1,259 observations
Three-toed Box Turtle
Terrapene triunguis
1,110 observations
Pond Slider
Trachemys scripta
889 observations
DeKay's Brownsnake
Storeria dekayi
747 observations
Common Garter Snake
Thamnophis sirtalis
693 observations
Blanchard's Cricket Frog
Acris blanchardi
543 observations
Common Watersnake
Nerodia sipedon
531 observations
Western Ratsnake
Pantherophis obsoletus
485 observations
American Bullfrog
Lithobates catesbeianus
421 observations
Southern Leopard Frog
Lithobates sphenocephalus
411 observations
Common Snapping Turtle
Chelydra serpentina
336 observations
Fowler's Toad
Anaxyrus fowleri
307 observations
Common Box Turtle
Terrapene carolina
245 observations
Broad-headed Skink
Plestiodon laticeps
228 observations
Ring-necked Snake
Diadophis punctatus
189 observations
Gray Treefrog
Dryophytes versicolor
189 observations · iNaturalist
Common Five-lined Skink
Plestiodon fasciatus
152 observations
Spring Peeper
Pseudacris crucifer
147 observations
North American Green Frog
Lithobates clamitans
141 observations
Central Ratsnake
Pantherophis alleghaniensis
131 observations
Lined Snake
Tropidoclonion lineatum
111 observations
Prairie Lizard
Sceloporus consobrinus
105 observations
North American Racer
Coluber constrictor
96 observations
Painted Turtle
Chrysemys picta
87 observations
Spiny Softshell
Apalone spinifera
79 observations
Western Slimy Salamander
Plethodon albagula
77 observations
Prairie Kingsnake
Lampropeltis calligaster
74 observations
Eastern Copperhead
Agkistrodon contortrix
69 observations
Plain-bellied Watersnake
Nerodia erythrogaster
63 observations
Cave Salamander
Eurycea lucifuga
60 observations
Mediterranean House Gecko
Hemidactylus turcicus
48 observations
Boreal Chorus Frog
Pseudacris maculata
47 observations
Wood Frog
Lithobates sylvaticus
45 observations
Timber Rattlesnake
Crotalus horridus
44 observations
Small-mouthed Salamander
Ambystoma texanum
42 observations
Ouachita Map Turtle
Graptemys ouachitensis
41 observations
Pickerel Frog
Lithobates palustris
39 observations
Spotted Salamander
Ambystoma maculatum
38 observations
Eastern Milksnake
Lampropeltis triangulum
34 observations
Diamondback Watersnake
Nerodia rhombifer
29 observations
Plains Leopard Frog
Lithobates blairi
29 observations
Rough Earthsnake
Virginia striatula
28 observations
Speckled Kingsnake
Lampropeltis holbrooki
28 observations
Eastern Musk Turtle
Sternotherus odoratus
28 observations
Northern Map Turtle
Graptemys geographica
27 observations
False Map Turtle
Graptemys pseudogeographica
25 observations
Rough Greensnake
Opheodrys aestivus
24 observations
Little Brown Skink
Scincella lateralis
24 observations
Smooth Earthsnake
Virginia valeriae
24 observations
Six-lined Racerunner
Aspidoscelis sexlineatus
23 observations · iNaturalist

Built from recent research-grade iNaturalist observations. Identifications are community-sourced and may occasionally be wrong, and the ranking reflects where people record and photograph wildlife, so a species seen often here is not necessarily rare elsewhere. Some plants and animals are only out in certain seasons. Treat this as a lively snapshot of what people are finding, not a formal checklist.

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