Skip to main content
sdzglibrarybanner San Diego Zoo Global Library

Anegada Iguana (Cyclura pinguis) Fact Sheet: Summary

Anegada Iguana (Cyclura pinguis)

Anegada Iguana (Cyclura pinguis) Fact Sheet

Anegada Iguana

Anegada Iguana (Cyclura pinguis)

Image credit: © San Diego Zoo Global. All rights reserved.


Taxonomy Physical Characteristics

Kingdom: Animalia

Phylum: Chordata

Class: Reptilia - reptiles

Order: Squamata

Family: Iguanidae - Iguanas, iguanids, chuckwallas, and American arboreal lizards

Genus: Cyclura

Species: Cyclura pinguis - Anegada Iguana

Body Weight
Males: 4.0 kg (8.8 lb), on average
Female: 2.9 kg (6.4 lb), on average

Snout-Vent Length
Male: 45.0 cm (1.5 ft), on average
Female: 41.3 cm (1.4 ft), on average

Tail Length
About 60 cm (2.0 ft)

Dusty brown back legs and sides; dorsal spines can be brilliant turquoise blue

Distribution & Status Behavior & Ecology

British Virgin Islands (Anegada Island), West Indies (Caribbean Sea)

Sandy scrub with woody shrubs, grasses, and a few trees.
Rocky woodland.

IUCN Status
Critically Endangered (1996 assessment) (Mitchell N, 1996)

CITES Appendix
Appendix I (UNEP 2019)

Other Designations
U.S. Fish and Wildlife Service: Endangered

Population in Wild

Crawl, walk, run. Climb trees often to feed. May reach for food on two back legs.

Activity Cycle
Mainly inactive. Bask in the sun during the morning.

Social Groups
Defend home ranges against individuals of the same sex. May live in groups.

Leaves and fruits

Mainly feral cats and dogs. Other observations of native snakes and a kestral preying on transloated Anegada Island iguanas.

Reproduction & Development Species Highlights

Sexual Maturity
Females: around 7-9 years old

Nesting Season
June-July, after spring rains

Incubation Period
90-92 days, on average

Clutch Size
13 eggs, on average (range 1-20)

At least 40 years

Feature Facts

  • Only about 250 individuals remaining; Critically Endangered
  • Feral cats kill most small juveniles
  • Use visual displays and olfactory channels to communicate
  • Strong competition among males
  • Eyes flush bright crimson when agitated
  • Browsing by these iguanas promotes growth in plants and helps to disperse their seeds
  • Compete with free-ranging livestock
  • Studied and successfully raised in managed care by the San Diego Zoo; headstarting programs

About This Fact Sheet

© 2010-2018 San Diego Zoo Global. Minor updates to Physical Characteristics and Reproduction in 2017. Population estimates updated Oct 2018.


How to cite: Anegada Iguana (Cyclura pinguis) Fact Sheet. c2010-2018. San Diego (CA): San Diego Zoo Global; [accessed YYYY Mmm dd]. anegadaiguana
(note: replace YYYY Mmm dd with date accessed, e.g., 2015 Sep 10)


Disclaimer: Although San Diego Zoo Global makes every attempt to provide accurate information, some of the facts provided may become outdated or replaced by new research findings. Questions and comments may be addressed to

SDZG Library Links

Anegada Iguana

Anegada iguana hatchling emerges from sandy nest

An Anegada Iguana hatchling emerges from its nest.

Image credit: © Jeff Lemm. All rights reserved. Used with permission from the artist.