Reptiles & Amphibians of Connecticut
The reptiles & amphibians most often spotted in Connecticut, ranked by recent research-grade observations.
Most-observed reptiles & amphibians in Connecticut
American Toad
Anaxyrus americanus
3,222 observations
Green Frog
Lithobates clamitans
3,202 observations
Common Garter Snake
Thamnophis sirtalis
2,878 observations
Painted Turtle
Chrysemys picta
2,682 observations
Wood Frog
Lithobates sylvaticus
2,383 observations
Eastern Red-backed Salamander
Plethodon cinereus
2,156 observations
Gray Treefrog
Dryophytes versicolor
2,101 observations · iNaturalist
Eastern Newt
Notophthalmus viridescens
1,892 observations
Pickerel Frog
Lithobates palustris
1,861 observations
Common Snapping Turtle
Chelydra serpentina
1,794 observations
Diamondback Terrapin
Malaclemys terrapin
1,775 observations
Spring Peeper
Pseudacris crucifer
1,732 observations
Common Watersnake
Nerodia sipedon
1,553 observations
American Bullfrog
Lithobates catesbeianus
1,184 observations
Spotted Salamander
Ambystoma maculatum
955 observations
Common Box Turtle
Terrapene carolina
948 observations
Eastern Milksnake
Lampropeltis triangulum
542 observations
Ring-necked Snake
Diadophis punctatus
541 observations
Northern Two-lined Salamander
Eurycea bislineata
492 observations
DeKay's Brownsnake
Storeria dekayi
467 observations
Eastern Ratsnake
Pantherophis alleghaniensis
422 observations
Pond Slider
Trachemys scripta
366 observations
Fowler's Toad
Anaxyrus fowleri
336 observations
North American Racer
Coluber constrictor
322 observations
Spotted Turtle
Clemmys guttata
297 observations
Marbled Salamander
Ambystoma opacum
238 observations
Four-toed Salamander
Hemidactylium scutatum
232 observations
Wood Turtle
Glyptemys insculpta
193 observations
Eastern Musk Turtle
Sternotherus odoratus
172 observations
Northern Dusky Salamander
Desmognathus fuscus
160 observations
Eastern Copperhead
Agkistrodon contortrix
156 observations
Common Ribbon Snake
Thamnophis saurita
106 observations · iNaturalist
Eastern Hognose Snake
Heterodon platirhinos
84 observations
Timber Rattlesnake
Crotalus horridus
70 observations
Common Wormsnake
Carphophis amoenus
37 observations
Northern Leopard Frog
Lithobates pipiens
35 observations
Red-bellied Snake
Storeria occipitomaculata
31 observations · iNaturalist
Blue-spotted Salamander
Ambystoma laterale
26 observations
Italian Wall Lizard
Podarcis siculus
20 observations · iNaturalist
Common Five-lined Skink
Plestiodon fasciatus
17 observations
Green Sea Turtle
Chelonia mydas
13 observations
Common Mudpuppy
Necturus maculosus
12 observations
Eastern Spadefoot
Scaphiopus holbrookii
11 observations
Kemp's Ridley Sea Turtle
Lepidochelys kempii
11 observations · iNaturalist
Jefferson Salamander
Ambystoma jeffersonianum
9 observations
Loggerhead Sea Turtle
Caretta caretta
9 observations
Brown Anole
Anolis sagrei
9 observations
Smooth Greensnake
Opheodrys vernalis
9 observations
Atlantic Coast Leopard Frog
Lithobates kauffeldi
9 observations · iNaturalist
Eastern Tiger Salamander
Ambystoma tigrinum
8 observations