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rhinoceros iguana
The rhinoceros iguana (''Cyclura cornuta'') is a threatened species of lizard in the family Iguanidae that is primarily found on the Caribbean island of Hispaniola, shared by the Republic of Haiti and the Dominican Republic. They vary in length from and skin colors range from a steely gray to a dark green and even brown. Their name derives from the bony-plated pseudo-horn or outgrowth which resembles the horn of a rhinoceros on the iguana's snout.
==Taxonomy==
The rhinoceros iguana is a species of lizard belonging to the genus ''Cyclura''. The 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''. The rhinoceros iguana's specific name, ''cornuta'', is the feminine form of the Latin adjective ''cornutus'', meaning "horned" and refers to the horned projections on the snouts of males of the species. The species was first identified by Pierre Joseph Bonnaterre in 1789.〔〔
In addition to the nominate race (''Cyclura cornuta cornuta'') found on Hispaniola, there are two other subspecies of ''Cyclura cornuta'', the Mona ground iguana (''Cyclura cornuta stejnegeri'') and the Navassa Island iguana (''Cyclura cornuta onchiopsis''), although the latter subspecies is believed to be extinct in the wild.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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