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Reptiles & Amphibians of Pennsylvania

The reptiles & amphibians most often spotted in Pennsylvania, ranked by recent research-grade observations.

183,477
recent observations
50
species listed
50
reptiles & amphibians

Naturalists have logged 183,477 research-grade observations across the 50 most-recorded species in Pennsylvania. The most frequently seen is the American Toad, with 20,601 recorded sightings.

Rarer finds confirmed in Pennsylvania include Wehrle's Salamander - uncommon enough that a sighting is worth logging.

Wehrle's Salamander

Most-observed reptiles & amphibians in Pennsylvania

American Toad
Anaxyrus americanus
20,601 observations
Common Garter Snake
Thamnophis sirtalis
16,326 observations
Eastern Newt
Notophthalmus viridescens
13,616 observations
Eastern Red-backed Salamander
Plethodon cinereus
12,619 observations
North American Green Frog
Lithobates clamitans
11,721 observations
Painted Turtle
Chrysemys picta
7,467 observations
Common Watersnake
Nerodia sipedon
7,274 observations
Common Snapping Turtle
Chelydra serpentina
6,327 observations
American Bullfrog
Lithobates catesbeianus
5,999 observations
Common Box Turtle
Terrapene carolina
5,736 observations
Central Ratsnake
Pantherophis alleghaniensis
5,612 observations
Wood Frog
Lithobates sylvaticus
4,926 observations
Pickerel Frog
Lithobates palustris
4,780 observations
Northern Two-lined Salamander
Eurycea bislineata
4,587 observations
Spring Peeper
Pseudacris crucifer
4,382 observations
Pond Slider
Trachemys scripta
4,021 observations
Spotted Salamander
Ambystoma maculatum
3,830 observations
Allegheny Mountain Dusky Salamander
Desmognathus ochrophaeus
3,749 observations
Gray Treefrog
Dryophytes versicolor
3,694 observations · iNaturalist
DeKay's Brownsnake
Storeria dekayi
3,563 observations
Northern Slimy Salamander
Plethodon glutinosus
3,393 observations
Eastern Milksnake
Lampropeltis triangulum
2,992 observations
Timber Rattlesnake
Crotalus horridus
2,975 observations
Ring-necked Snake
Diadophis punctatus
2,971 observations
Northern Dusky Salamander
Desmognathus fuscus
2,176 observations
Wood Turtle
Glyptemys insculpta
1,606 observations
Red Salamander
Pseudotriton ruber
1,514 observations
Fowler's Toad
Anaxyrus fowleri
1,508 observations
Long-tailed Salamander
Eurycea longicauda
1,502 observations
Northern Red-bellied Cooter
Pseudemys rubriventris
1,375 observations
Northern Map Turtle
Graptemys geographica
1,216 observations
Red-bellied Snake
Storeria occipitomaculata
1,176 observations
Common Five-lined Skink
Plestiodon fasciatus
943 observations
Spring Salamander
Gyrinophilus porphyriticus
930 observations
North American Racer
Coluber constrictor
623 observations
Eastern Musk Turtle
Sternotherus odoratus
601 observations
Four-toed Salamander
Hemidactylium scutatum
593 observations
Eastern Fence Lizard
Sceloporus undulatus
564 observations
Eastern Copperhead
Agkistrodon contortrix
547 observations
Spiny Softshell
Apalone spinifera
448 observations
Jefferson Salamander
Ambystoma jeffersonianum
410 observations
Northern Leopard Frog
Lithobates pipiens
384 observations
Short-headed Garter Snake
Thamnophis brachystoma
373 observations
Smooth Greensnake
Opheodrys vernalis
319 observations
Queensnake
Regina septemvittata
292 observations
Eastern Hognose Snake
Heterodon platirhinos
284 observations
Wehrle's Salamander
Plethodon wehrlei
278 observations
Italian Wall Lizard
Podarcis siculus
232 observations
Valley And Ridge Salamander
Plethodon hoffmani
212 observations
Blanding's Turtle
Emydoidea blandingii
210 observations

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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