Most commonly observed introduced reptiles documented using iNaturalist by US state
32 states reported Pond Slider, Trachemys scripta, as the most commonly observed introduced reptile
9 states reported Mediterranean Gecko, Hemidactylus turcicus, as the most commonly observed introduced reptile
4 states reported Brown Anole, Anolis sagrei, as the most commonly observed introduced reptile
3 states reported Common Wall Lizard, Podarcis muralis, as the most commonly observed introduced reptile
1 state reported Gold Dust Day Gecko, Phelsuma laticauda, as the most commonly observed introduced reptile
1 state reported Italian Wall Lizard, Podarcis siculus, as the most commonly observed introduced reptile
Top 10 most commonly observed reptiles in the US (reported on iNaturalist)
Western Fence Lizard, Sceloporus occidentalis - Native to the US (but may be considered introduced in some states)
Pond Slider, Trachemys scripta - Native to the US (but may be considered introduced in some states)
Green Anole, Anolis carolinensis - Native to the US (but may be considered introduced in some states)
Common Garter Snake, Thamnophis sirtalis - Native to the US (but may be considered introduced in some states)
Brown Anole, Anolis sagrei - Introduced to the US
Common Box Turtle, Terrapene carolina - Native to the US (but may be considered introduced in some states)
Painted Turtle, Chrysemys picta - Native to the US (but may be considered introduced in some states)
American Alligator, Alligator mississippiensis - Native to the US (but may be considered introduced in some states)
Common Snapping Turtle, Chelydra serpentina - Native to the US (but may be considered introduced in some states)
Common Side-blotched Lizard, Uta stansburiana - Native to the US (but may be considered introduced in some states)
(last updated November 2023)