Reptiles & Amphibians of Pennsylvania
The reptiles & amphibians most often spotted in Pennsylvania, ranked by recent research-grade observations.
Most-observed reptiles & amphibians in Pennsylvania
American Toad
Anaxyrus americanus
18,317 observations
Common Garter Snake
Thamnophis sirtalis
15,199 observations
Eastern Newt
Notophthalmus viridescens
12,304 observations
Eastern Red-backed Salamander
Plethodon cinereus
11,508 observations
Green Frog
Lithobates clamitans
10,768 observations
Painted Turtle
Chrysemys picta
6,992 observations
Common Watersnake
Nerodia sipedon
6,773 observations
Common Snapping Turtle
Chelydra serpentina
5,937 observations
American Bullfrog
Lithobates catesbeianus
5,539 observations
Common Box Turtle
Terrapene carolina
5,259 observations
Wood Frog
Lithobates sylvaticus
4,596 observations
Pickerel Frog
Lithobates palustris
4,252 observations
Northern Two-lined Salamander
Eurycea bislineata
4,225 observations
Spring Peeper
Pseudacris crucifer
4,094 observations
Pond Slider
Trachemys scripta
3,752 observations
Spotted Salamander
Ambystoma maculatum
3,719 observations
Allegheny Mountain Dusky Salamander
Desmognathus ochrophaeus
3,468 observations
Gray Treefrog
Dryophytes versicolor
3,363 observations · iNaturalist
DeKay's Brownsnake
Storeria dekayi
3,221 observations
Northern Slimy Salamander
Plethodon glutinosus
3,014 observations
Eastern Milksnake
Lampropeltis triangulum
2,754 observations
Ring-necked Snake
Diadophis punctatus
2,750 observations
Timber Rattlesnake
Crotalus horridus
2,629 observations
Gray Ratsnake
Pantherophis spiloides
2,293 observations
Northern Dusky Salamander
Desmognathus fuscus
2,065 observations
Wood Turtle
Glyptemys insculpta
1,487 observations
Red Salamander
Pseudotriton ruber
1,430 observations
Long-tailed Salamander
Eurycea longicauda
1,362 observations
Fowler's Toad
Anaxyrus fowleri
1,307 observations
Eastern Ratsnake
Pantherophis alleghaniensis
1,295 observations
Northern Red-bellied Cooter
Pseudemys rubriventris
1,289 observations
Northern Map Turtle
Graptemys geographica
1,127 observations
Red-bellied Snake
Storeria occipitomaculata
1,071 observations · iNaturalist
Spring Salamander
Gyrinophilus porphyriticus
881 observations
Common Five-lined Skink
Plestiodon fasciatus
827 observations
North American Racer
Coluber constrictor
578 observations
Eastern Musk Turtle
Sternotherus odoratus
569 observations
Four-toed Salamander
Hemidactylium scutatum
565 observations
Eastern Fence Lizard
Sceloporus undulatus
488 observations
Eastern Copperhead
Agkistrodon contortrix
460 observations
Jefferson Salamander
Ambystoma jeffersonianum
405 observations
Spiny Softshell
Apalone spinifera
388 observations
Northern Leopard Frog
Lithobates pipiens
361 observations
Short-headed Garter Snake
Thamnophis brachystoma
335 observations · iNaturalist
Smooth Greensnake
Opheodrys vernalis
292 observations
Queensnake
Regina septemvittata
278 observations
Eastern Hognose Snake
Heterodon platirhinos
262 observations
Wehrle's Salamander
Plethodon wehrlei
246 observations · iNaturalist
Italian Wall Lizard
Podarcis siculus
217 observations · iNaturalist
Valley and Ridge Salamander
Plethodon hoffmani
199 observations · iNaturalist