Acklins ground iguana

Cyclura rileyi nuchalis, commonly known as the Acklins ground iguana or Watling Island iguana, is an endangered subspecies of lizard of the genus Cyclura it is one of three subspecific forms of Cyclura rileyi in the family Iguanidae.
Taxonomy
The Acklins ground iguana is a recognized subspecies of the San Salvador Rock Iguana, recognized as such since 1975. The species is listed as endangered according to the current IUCN Red List.
Its generic name (Cyclura) is derived from the Ancient Greek cyclos (κύκλος) meaning "circular" and ourá (οὐρά) meaning "tail", after the thick-ringed tail characteristic of all Cyclura iguanas. Its specific name, rileyi, is a Latinized form of the name of American biologist, Joseph Harvey Riley. Its subspecific name,nuchalis, is Latin for "neck" in reference to the thick scalation around the animal's neck.
Anatomy and morphology...