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Common Garter Snake
Thamnophis sirtalis
11,223 observations
Common Watersnake
Nerodia sipedon
5,155 observations
Painted Turtle
Chrysemys picta
4,926 observations
Central Ratsnake
Pantherophis alleghaniensis
4,538 observations
Common Snapping Turtle
Chelydra serpentina
4,325 observations
Common Box Turtle
Terrapene carolina
4,302 observations
Pond Slider
Trachemys scripta
3,261 observations
DeKay's Brownsnake
Storeria dekayi
2,784 observations
Timber Rattlesnake
Crotalus horridus
2,752 observations
Ring-necked Snake
Diadophis punctatus
2,271 observations
Eastern Milksnake
Lampropeltis triangulum
2,050 observations
Wood Turtle
Glyptemys insculpta
1,301 observations
Red-bellied Snake
Storeria occipitomaculata
779 observations
Northern Map Turtle
Graptemys geographica
704 observations
Common Five-lined Skink
Plestiodon fasciatus
703 observations
Northern Red-bellied Cooter
Pseudemys rubriventris
695 observations
Eastern Copperhead
Agkistrodon contortrix
475 observations
North American Racer
Coluber constrictor
419 observations
Eastern Musk Turtle
Sternotherus odoratus
407 observations
Spiny Softshell
Apalone spinifera
380 observations
Short-headed Garter Snake
Thamnophis brachystoma
355 observations
Queensnake
Regina septemvittata
281 observations
Eastern Fence Lizard
Sceloporus undulatus
267 observations
Smooth Greensnake
Opheodrys vernalis
247 observations
Eastern Hognose Snake
Heterodon platirhinos
243 observations
Spotted Turtle
Clemmys guttata
118 observations
Common Ribbon Snake
Thamnophis saurita
106 observations
Coal Skink
Plestiodon anthracinus
55 observations
Brown Anole
Anolis sagrei
54 observations
Eastern Massasauga
Sistrurus catenatus
46 observations
Common Wormsnake
Carphophis amoenus
45 observations
Smooth Earthsnake
Virginia valeriae
37 observations
Italian Wall Lizard
Podarcis siculus
37 observations
Mediterranean House Gecko
Hemidactylus turcicus
33 observations
River Cooter
Pseudemys concinna
27 observations
Broad-headed Skink
Plestiodon laticeps
27 observations
Rough Greensnake
Opheodrys aestivus
25 observations
False Map Turtle
Graptemys pseudogeographica
11 observations
Three-toed Box Turtle
Terrapene triunguis
9 observations
Diamondback Terrapin
Malaclemys terrapin
7 observations
Bog Turtle
Glyptemys muhlenbergii
6 observations
Green Anole
Anolis carolinensis
5 observations
Red Cornsnake
Pantherophis guttatus
5 observations
Ornate Box Turtle
Terrapene ornata
3 observations
Afghan Tortoise
Testudo horsfieldii
3 observations
African Spurred Tortoise
Centrochelys sulcata
2 observations
Common Wall Lizard
Podarcis muralis
2 observations
Ouachita Map Turtle
Graptemys ouachitensis
2 observations
American Alligator
Alligator mississippiensis
1 observations
Invasive
Ball Python
Python regius
1 observations
Frequently Asked Questions
- The 10 most common reptiles in Pennsylvania are:
- Common Garter Snake (Thamnophis sirtalis)
- Common Watersnake (Nerodia sipedon)
- Painted Turtle (Chrysemys picta)
- Central Ratsnake (Pantherophis alleghaniensis)
- Common Snapping Turtle (Chelydra serpentina)
- Common Box Turtle (Terrapene carolina)
- Pond Slider (Trachemys scripta)
- DeKay's Brownsnake (Storeria dekayi)
- Timber Rattlesnake (Crotalus horridus)
- Ring-necked Snake (Diadophis punctatus)
- The most observed reptile in Pennsylvania is Common Garter Snake (Thamnophis sirtalis), with 11,223 recorded observations.
- Some of the most commonly observed invasive reptiles in Pennsylvania include:
- Ball Python (Python regius)