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Reptiles & Amphibians of Arnold Arboretum of Harvard University

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

863
recent observations
23
species listed
23
reptiles & amphibians

Naturalists have logged 863 research-grade observations across the 23 most-recorded species in Arnold Arboretum. The most frequently seen is the American Bullfrog, with 159 recorded sightings.

Most-observed reptiles & amphibians in Arnold Arboretum

American Bullfrog
Lithobates catesbeianus
159 observations
Painted Turtle
Chrysemys picta
119 observations
Common Garter Snake
Thamnophis sirtalis
116 observations
Common Snapping Turtle
Chelydra serpentina
116 observations
Eastern Red-backed Salamander
Plethodon cinereus
93 observations
American Toad
Anaxyrus americanus
74 observations
Pond Slider
Trachemys scripta
65 observations
Northern Two-lined Salamander
Eurycea bislineata
43 observations
DeKay's Brownsnake
Storeria dekayi
33 observations
North American Green Frog
Lithobates clamitans
12 observations
Gray Treefrog
Dryophytes versicolor
8 observations · iNaturalist
Spotted Salamander
Ambystoma maculatum
6 observations
Spotted Turtle
Clemmys guttata
6 observations
Spring Peeper
Pseudacris crucifer
2 observations
Common Watersnake
Nerodia sipedon
2 observations
Eastern Copperhead
Agkistrodon contortrix
2 observations
North American Racer
Coluber constrictor
1 observation
Timber Rattlesnake
Crotalus horridus
1 observation
Common Box Turtle
Terrapene carolina
1 observation
Blue-spotted Salamander
Ambystoma laterale
1 observation
Wood Frog
Lithobates sylvaticus
1 observation
Smooth Greensnake
Opheodrys vernalis
1 observation
Eastern Milksnake
Lampropeltis triangulum
1 observation

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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