Texas alligator lizard

Texas alligator lizard
Texas Alligator Lizard, Gerrhonotus infernalis
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Reptilia
Order: Squamata
Suborder: Sauria
Family: Anguidae
Subfamily: Gerrhonotinae
Genus: Gerrhonotus
Species: G. infernalis
Binomial name
Gerrhonotus infernalis
Baird, 1859
Synonyms
  • Gerrhonotus infernalis
    Baird, 1859
  • Gerrhonotus liocephalus infernalis Cope, 1900
  • Gerrhonotus infernalis
    — Good, 1994[2]

The Texas alligator lizard (Gerrhonotus infernalis) is a species of lizard in the subfamily Gerrhonotinae found in the central region of the American state of Texas, and south into Mexico.

Description

The Texas alligator lizard is a medium-sized lizard, attaining a maximum total length (including tail) around 24 to 25 in (61 to 64 cm). It is the largest lizard species in Texas, and one of the largest alligator lizards in the world. These lizards have flat, wedge-shaped heads. They are generally a yellow-brown color, often with darker brown and white checker patterning on their dorsal surfaces, and uniformly light-colored, white, or grey on their ventral surfaces. Their scales are very stiff and plate-like. They have short limbs, and a tail that can fall off to distract a potential predator, but will regrow in time.

Behavior

Texas alligator lizards are relatively slow, diurnal lizards, with quite good vision. Though not generally aggressive, they may bite if handled, and are incorrectly considered to be venomous by many cultures.

Habitat

They are often found on rocky hillsides, where they hide among the stones or in limestone crevices.

Diet

Their primary diet is insects and other invertebrates, but they may sometimes prey on nestling birds or rodents.

Reproduction

Breeding occurs year round; sometimes, multiple clutches of eggs are laid per year. Females will often stay near the nesting site to protect it, but no parental care occurs once the young alligator lizards hatch. The young generally have more striking markings, and are only about 3–4 in (7.6–10.2 cm) long (including tail).

References

  1. Hammerson GA, Vazquez Díaz J, Gadsden H, Quintero Díaz GE, Ponce-Campos P, Lavin P. (2007). Gerrhonotus infernalis. In: IUCN 2008. IUCN Red List of Threatened Species. Retrieved 6 November 2008.
  2. The Reptile Database. www.reptile-database.org.

Further reading

External links


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