Including marine turtles and introduced species on all islands, there are 19 reptile species reported in Antigua and Barbuda, with an additional species unconfirmed. Nine species are present on both main islands. Six species are endemic to the islands of Antigua and Barbuda, of which five are only found on one island.
Critically endangered. Endemic; found only on Great Bird Island off the coast of Antigua. Considered one of the rarest and most endangered snake species in the world; only 60-80 adults believed to remain.
^Lindsay, K.; Cooper, B. (2008), "Osteopilus septentrionalis becomes established on Antigua, West Indies", Applied Herpetology5 (1): 96–98. Not recorded on Antigua (or anywhere else in the Lesser Antilles) in Malhotra & Thorpe 1999.
^Conservation status, where available, is from the IUCN Red List and is indicative of the status of the species as a whole, not just populations in Antigua and Barbuda.