Madrean alligator lizard

The Madrean alligator lizard (Elgaria kingii) is a species of lizard in the family Anguidae. The species is endemic to the southwestern United States and adjacent northwestern Mexico.

Etymology
The specific name, kingii, is in honor of Phillip Parker King, an Australian-born Royal Navy officer who surveyed the coast of South America.

Geographic range
Elgaria kingii is found from southeastern Arizona and southwestern New Mexico, United States, southward to Jalisco, Colima, Nayarit, southeastern Zacatecas, and southwestern Aguascalientes, Mexico.

Subspecies
Three subspecies are recognized as being valid, including the nominotypical subspecies.
 * Elgaria kingii ferruginea (Webb, 1962)
 * Elgaria kingii kingii Gray, 1838
 * Elgaria kingii nobilis Baird & Girard, 1852

Nota bene: A trinomial authority in parentheses indicates that the subspecies was originally described in a genus other than Elgaria.