Species Profile
Environmental Conservation Online System

Mona Ground Iguana (Cyclura cornuta stejnegeri)

Kingdom: Animalia
Class: Reptilia
Order: Squamata
Family: Iguanidae

Listing Status:   

General Information

Mona ground iguanas are massive, primeval-looking lizards growing 3 to 4 feet in length, with several small horns protruding from the snout, two prominent bulges crowning the head, sagging jowl muscles in older individuals, a throat fan or dewlap, a crest along the back, and wrinkled skin of a dark brown color. Juvenile iguanas have a banded pattern which lasts until they are about 3 years old.

Lead Region:  Southeast Region (Region 4)
Date Listed: Mar 6, 1978

  • States/US Territories in which the Mona Ground Iguana is known to occur:  Puerto Rico

» Federal Register Documents

Most Recent Federal Register Documents (Showing 3 of 3 )
Date Citation Page Title
09/21/2007 72 FR 54061 54062 5-Year Review of 18 Caribbean Species
02/03/1978 43 FR 4618 4621 Final Determination of Threatened Status and Critical Habitat for the Mona Boa and Mona Ground Iguana
05/26/1977 42 FR 27003 27007 Proposed Determination of Threatened Status for Three Reptiles from Mona Island, Puerto Rico with Critical Habitat; 42 FR 27003 27007 (Mona boa, Epicrates monensis; Mona ground iguana, Cyclura stejnegeri; Mona blind snake, Typhlops monensis)

» Recovery

Recovery Plan Information Search
Current Recovery Plan(s)
Date Title Plan Action Status Plan Status
04/19/1984 Recovery Plan for the Mona Iguana View Implementation Progress Final
Other Recovery Documents (Showing 1 of 1 )
Date Citation Page Title Document Type
09/21/2007 72 FR 54061 54062 5-Year Review of 18 Caribbean Species
  • Notice 5-year Review, Initiation

    • » Critical Habitat

    Current Critical Habitat Documents (Showing 1 of 1 )
    Date Citation Page Title Document Type Status
    02/03/1978 43 FR 4618 4621 Final Determination of Threatened Status and Critical Habitat for the Mona Boa and Mona Ground Iguana Final Rule Active

    To learn more about critical habitat please see http://criticalhabitat.fws.gov

    » Conservation Plans

    No conservation plans have been created for Mona Ground Iguana

    » Petitions

    No petition findings have been published for the Mona Ground Iguana.

    » Life History

    No Life History information has been entered into this system for this species.

    » Other Resources

    NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

    ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.

    Last updated: November 22, 2009