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Cophosaurus texanus TROSCHEL, 1852

IUCN Red List - Cophosaurus texanus - Least Concern, LC
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Higher TaxaPhrynosomatidae, Phrynosomatinae, Callisaurini; Iguania, Sauria, Squamata (lizards)
SubspeciesCophosaurus texanus scitulus (PETERS 1951)
Cophosaurus texanus reticulatus (PETERS 1951)
Cophosaurus texanus texanus TROSCHEL 1850 
Common NamesE: Greater Earless Lizard
E: Chihuahuan Greater Earless Lizard, Southwestern Earless Lizard [scitulus]
E: Texas Earless Lizard [texanus]
S: Lagartijón Sordo 
SynonymCophosaurus texanus TROSCHEL 1852: 289
Holbrookia texana — BAIRD & GIRARD 1852
Holbrookia affinis BAIRD & GIRARD 1852: 125 (fide GÜNTHER 1885)
Holbrookia texana — COPE 1880: 16
Holbrookia texana — BOULENGER 1885: 208
Holbrookia texana — COPE 1900
Holbrookia texana — SCHMIDT 1922
Holbrookia texana — BURT 1935
Holbrookia texana — SMITH 1935
Holbrookia texana — SMITH 1946
Holbrookia texana — SMITH & TAYLOR 1950: 85
Cophosaurus texanus — CLARKE 1965
Holbrookia texana — COX & TANNER 1977
Holbrookia texana — CONANT 1978
Cophosaurus texanus — STEBBINS 1985: 116
Cophosaurus texanus — CONANT & COLLINS 1991: 99
Cophosaurus texanus — LINER 1994
Cophosaurus texanus texanus — LINER 2007
Cophosaurus texanus — HEIMES 2022

Cophosaurus texanus reticulatus (PETERS, 1951)
Holbrookia texana reticulata PETERS 1951
Holbrookia texana reticulata — KLUGE 1984
Cophosaurus texanus reticulatus — LINER 2007

Cophosaurus texanus scitulus (PETERS 1951)
Holbrookia texana scitula PETERS 1951: 8
Holbrookia texana scitula — FUGLER 1956
Holbrookia texana scitula — ETHERIDGE 1964
Cophosaurus texanus scitulus — KLUGE 1984
Cophosaurus texanus scitulus — TANNER 1987
Cophosaurus texanus scitulus — LINER et al. 1993
Cophosaurus texanus scitulus — LEMOS-ESPINAL et al. 2004
Cophosaurus texanus scitulus — LINER 2007
Cophosaurus texanus scitulus — CROTHER et al. 2012 
DistributionUSA (SW Arizona, S New Mexico, W Texas),
Mexico (NE Sonora, N Chihuahua, NE Durango, Coahuila, Nuevo Leon, W Tamaulipas, N Zacatecas)

scitulus: USA (Arizona, S Texas), Mexico (Coahuila, N San Luis Potosi); Type locality: On rocks at mouth of small arroyo entering Cañada del Oro del Oro, 16 miles north of Tucson, Pima Co., Arizona.

reticulatus: Mexico (Sonora); Type locality: Pilares, Sonora.

texanus: Texas, Oklahoma; NeoType locality: Texas, Comal, NE edge New Braunfels.

Type locality: New Braunfels, on the Guadalupe River, Texas.  
Reproductionoviparous 
TypesNeotype: UMMZ 100811 (fide Peters 1951)
Holotype: UMMZ 100817 [reticulatus]
Holotype: UMMZ 100818 [scitulus]
Syntype: USNM 2662 [Holbrookia affinis] 
DiagnosisAdditional details, e.g. a detailed description or comparisons (2267 characters), are available for collaborators and contributors. Please contact us for details. 
CommentSynonymy: AXTELL (1958) proposed to separate Cophosaurus from Holbrookia in a PhD thesis (Univ. Texas). Cox & Tanner 1977 proposed to synonymize Cophosaurus with Holbrookia, based on osteological and other evidence (they did not propose anything on reticulatus or scitulus).

Type Species: Cophosaurus texanus is the type species of the genus Cophosaurus TROSCHEL 1852.

Similar species: Callisaurus draconoides. 
EtymologyTHe species name “texanus” refers to its occurrence in Texas. The subspecific name “scitulus” is a Latin word meaning "beautiful."

The genus name is derived from the Greek words “copho”, meaning deaf, and sauros, meaning lizard, in reference to the absence of an external ear opening. These lizards, however, are not deaf.  
References
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