Cyclura rileyi nuchalis
The Acklins ground iguana ( "Cyclura rileyi nuchalis" ) , also commonly known as the 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 . 
<triplet> Cyclura <subj> Iguanidae <obj> parent taxon