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Reptiles of the United States  
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A Guide to the Reptiles &
Amphibians of the United States
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Abbreviation Legend

  • (CE) - Criticially Endangered
  • (CI) - Critically Imperiled
  • (E) - Endangered
  • (I) - Introduced
  • (IM) - Imperiled
  • (NT) - Near Threatened
  • (T) - Threatened
  • (V) - Vulnerable
  • (**) - Recent Classification Change
Home »» Lizards »» Igunaidae (Iguanids)

Iguanas of the United States


Igunaidae range from 4 to 72 inches in length. A typical iguanid is of moderate size, has 5 clawed toes on each of its 4 legs, and a long tail, its teeth are attached to the ledge on the inside of the jaw. Most species are either arboreal or terrestrial, they feed on insects and other invertebrates, but some, like Dipsosaurus and Sauromalus eat leaves, fruit, and blossoms. Except for a very few species that live in cool mountain habitats and give birth to living young, iguanids are egg layers.

There are 4 genera, with 6 species found in the United States, only 2 are native with the other 5 species being Introduced.



(I)

Sonoran Spiny-Tailed Iguana
(Ctenosaura macrolopha)
(I)

Western Spiny-Tailed Iguana
(Ctenosaura pectinata)
(I)

Black Spiny-Tailed Iguana
(Ctenosaura similis)

Desert Iguana
(Dipsosaurus dorsalis)
(I)

Green Iguana
(Iguana iguana)

Common Chuckwalla
(Sauromalus ater)
 

 

 

 

Recommended Books at Amazon.com


Handbook of Lizards: Lizards of the United States and of Canada     Lizards of the World: A Guide to Every Family     Texas Lizards: A Field Guide     National Geographic Readers: Lizards



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Disclaimer: ITIS taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. However, it is not a legal authority for statutory or regulatory purposes. While every effort has been made to provide the most reliable and up-to-date information available, ultimate legal requirements with respect to species are contained in provisions of treaties to which the United States is a party, wildlife statutes, regulations, and any applicable notices that have been published in the Federal Register. For further information on U.S. legal requirements with respect to protected taxa, please contact the U.S. Fish and Wildlife Service.

 
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