Reptiles & amphibians of Ocean City & Assateague

12 starter species curated for visitors—not every herp on the Assateague checklist. Likelihood stars rate how often a typical visitor might notice the species around OC / Assateague MD (1 rare · 5 common). Always respect sea-turtle stranding protocols and leave non-venomous snakes alone.

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Northern Diamondback Terrapin Malaclemys terrapin terrapin · Turtle · ★★★★☆ Maryland’s state reptile and Assateague’s signature marsh turtle. NPS notes diamondbacks prefer estuarine habitats around the island. Eastern Box Turtle Terrapene carolina · Turtle · ★★★☆☆ Terrestrial turtle that can close up completely in its hinged shell. NPS notes Assateague box turtles burrowing under vegetation in extreme weather. Eastern Ratsnake Pantherophis alleghaniensis · Snake · ★★★☆☆ Assateague’s wide-ranging non-venomous climber. NPS notes black rat snakes in most island habitats. Fowler's Toad Anaxyrus fowleri · Frog / toad · ★★★☆☆ Common coastal toad of sandy soils, part of Assateague’s frog and toad community that needs freshwater ponds to breed. Green Treefrog Hyla cinerea · Frog / toad · ★★★☆☆ Bright green nocturnal singer of marsh shrubs and pond edges. Listen for the nasal “queenk” chorus on warm nights. Northern Watersnake Nerodia sipedon · Snake · ★★★☆☆ Marsh and pond snake. NPS lists northern water snakes in Assateague salt marshes and freshwater/brackish ponds. Southern Leopard Frog Lithobates sphenocephalus · Frog / toad · ★★★☆☆ Spotted pond frog of Assateague’s freshwater pockets, a quick jumper along muddy margins. Eastern Fence Lizard Sceloporus undulatus · Lizard · ★★☆☆☆ Assateague’s occasional lizard. NPS notes fence lizards in forest and shrub thickets, sunning near a quick hide. Eastern Hognose Snake Heterodon platirhinos · Snake · ★★☆☆☆ Upturned “hog” nose and dramatic bluff displays. NPS notes hognose prefer beaches, dunes, and grassy areas and are often mistaken for copperheads. Loggerhead Sea Turtle Caretta caretta · Sea turtle · ★★☆☆☆ The Mid-Atlantic’s most expected sea turtle, seen offshore in warm months. Rare nesting attempts on Assateague/OC beaches draw protective closures. Green Sea Turtle Chelonia mydas · Sea turtle · ★☆☆☆☆ Occasional Assateague/OC ocean visitor among the seashore’s listed sea turtle species. More common farther south. Kemp's Ridley Sea Turtle Lepidochelys kempii · Sea turtle · ★☆☆☆☆ World’s most endangered sea turtle and an occasional Mid-Atlantic visitor. Cold-stunned juveniles sometimes strand in fall/winter events.