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Reptiles & Amphibians of Pennsylvania

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

183,995
recent observations
50
species listed
50
reptiles & amphibians

Naturalists have logged 183,995 research-grade observations across the 50 most-recorded species in Pennsylvania. The most frequently seen is the American Toad, with 20,632 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
20,632 observations
Common Garter Snake
Thamnophis sirtalis
16,367 observations
Eastern Newt
Notophthalmus viridescens
13,643 observations
Eastern Red-backed Salamander
Plethodon cinereus
12,734 observations
North American Green Frog
Lithobates clamitans
11,750 observations
Painted Turtle
Chrysemys picta
7,482 observations
Common Watersnake
Nerodia sipedon
7,278 observations
Common Snapping Turtle
Chelydra serpentina
6,336 observations
American Bullfrog
Lithobates catesbeianus
6,013 observations
Common Box Turtle
Terrapene carolina
5,749 observations
Central Ratsnake
Pantherophis alleghaniensis
5,623 observations
Wood Frog
Lithobates sylvaticus
4,935 observations
Pickerel Frog
Lithobates palustris
4,786 observations
Northern Two-lined Salamander
Eurycea bislineata
4,611 observations
Spring Peeper
Pseudacris crucifer
4,394 observations
Pond Slider
Trachemys scripta
4,039 observations
Spotted Salamander
Ambystoma maculatum
3,842 observations
Allegheny Mountain Dusky Salamander
Desmognathus ochrophaeus
3,754 observations
Gray Treefrog
Dryophytes versicolor
3,705 observations · iNaturalist
DeKay's Brownsnake
Storeria dekayi
3,601 observations
Northern Slimy Salamander
Plethodon glutinosus
3,401 observations
Eastern Milksnake
Lampropeltis triangulum
2,996 observations
Timber Rattlesnake
Crotalus horridus
2,981 observations
Ring-necked Snake
Diadophis punctatus
2,978 observations
Northern Dusky Salamander
Desmognathus fuscus
2,183 observations
Wood Turtle
Glyptemys insculpta
1,609 observations
Red Salamander
Pseudotriton ruber
1,516 observations
Fowler's Toad
Anaxyrus fowleri
1,509 observations
Long-tailed Salamander
Eurycea longicauda
1,503 observations
Northern Red-bellied Cooter
Pseudemys rubriventris
1,380 observations
Northern Map Turtle
Graptemys geographica
1,217 observations
Red-bellied Snake
Storeria occipitomaculata
1,178 observations
Common Five-lined Skink
Plestiodon fasciatus
944 observations
Spring Salamander
Gyrinophilus porphyriticus
933 observations
North American Racer
Coluber constrictor
624 observations
Eastern Musk Turtle
Sternotherus odoratus
601 observations
Four-toed Salamander
Hemidactylium scutatum
599 observations
Eastern Fence Lizard
Sceloporus undulatus
565 observations
Eastern Copperhead
Agkistrodon contortrix
548 observations
Spiny Softshell
Apalone spinifera
450 observations
Jefferson Salamander
Ambystoma jeffersonianum
410 observations
Northern Leopard Frog
Lithobates pipiens
386 observations
Short-headed Garter Snake
Thamnophis brachystoma
373 observations
Smooth Greensnake
Opheodrys vernalis
319 observations
Queensnake
Regina septemvittata
294 observations
Eastern Hognose Snake
Heterodon platirhinos
284 observations
Wehrle's Salamander
Plethodon wehrlei
278 observations
Italian Wall Lizard
Podarcis siculus
237 observations
Valley And Ridge Salamander
Plethodon hoffmani
215 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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