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Earless lizard. Earless lizards are two genera of small lizards native to the semiarid and grassland habitats of the Southwestern United States and Mexico. The genus Cophosaurus and the genus Holbrookia are both characterized by having no external ear openings, presumably to prevent sand from entering their bodies as they dig.
Several members of the T. lineata species complex (namely the Canberra population of T. lineata, T. mccartneyi, T. osbornei, and T. pinguicolla) are referred to as the "grassland earless dragons", being the only members of the family Agamidae to be restricted to natural temperate grasslands. These species are found at higher altitudes and in ...
Holbrookia maculata, commonly known as the lesser earless lizard, is a species of lizard in the family Phrynosomatidae. The species is native to the southwestern and central United States and northern Mexico. There are eight recognized subspecies.
The earless monitor lizard (Lanthanotus borneensis) is a semiaquatic, brown lizard native to the Southeast Asian island of Borneo. It is the only living species in the family Lanthanotidae and it is related to the true monitor lizards .
The greater earless lizard (Cophosaurus texanus) is the only species in the monotypic genus Cophosaurus. It is closely related to the smaller, lesser earless lizards and other species in the genus Holbrookia , and in fact was placed in that genus and referred to Holbrookia texana from 1852 into the 1970s.
Holbrookia Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Class: Reptilia Order: Squamata Suborder: Iguania Family: Phrynosomatidae Genus: Holbrookia Girard, 1851 Keeled earless lizard (Holbrookia propinqua) female, municipality of Soto La Marina, Tamaulipas, Mexico (20 May 2002). Holbrookia is a genus of earless lizards, known commonly as the lesser earless ...
Holbrookia maculata perspicua, commonly known as the eastern earless lizard and the prairie earless lizard, is a subspecies of lizard in the family Phrynosomatidae. H. m. perspicua is a subspecies of the lesser earless lizard (Holbrookia maculata). The subspecies is native to the prairies of the central United States.
Tympanocryptis pinguicolla, also known as Victorian grassland earless dragon, is a critically endangered species of lizard in the family Agamidae. It is one of a documented species of a relatively small dragon belonging to the genus Tympanocryptis .