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Sceloporus cowlesi LOWE & NORRIS, 1956

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Higher TaxaPhrynosomatidae, Sceloporinae, Iguania, Sauria, Squamata (lizards)
Common NamesE: White Sands Prairie Lizard 
SynonymSceloporus undulatus cowlesi LOWE & NORRIS 1956
Sceloporus undulatus (exerge consobrinus) cowlesi — SMITH et al. 1992
Sceloporus undulatus speari SMITH, CHISZAR, LEMOS-ESPINAL 1995
Sceloporus undulatus cowlesi — CROTHER 2000
Sceloporus cowlesi — LEACHE & REEDER 2002
Sceloporus undulatus cowlesi — BELL et al. 2003
Sceloporus undulatus speari — BELL et al. 2003
Sceloporus cowlesi — LEACHE & COLE 2007
Sceloporus undulatus speari — LINER & CASAS-ANDREU 2008
Sceloporus cowlesi — COLLINS & TAGGART 2009
Sceloporus cowlesi — CROTHER et al. 2012
Sceloporus cowlesi — HEIMES 2022 
DistributionUSA (New Mexico, SE Arizona, Texas), Mexico (Chihuahua, Tamaulipas, Sonora, Nuevo León, Coahuila, San Luis Potosí, Durango)

Type Locality: White Sands, 3 mi NW National Monument Headquarters, Otero County, New Mexico.

speari: Mexico (Chihuahua); Type Locality: 1.6 km N Hwy 2, 107°11'W, 31°33” N, 1250 m, on a side road intersecting Hwy. 2, 3.6 km E Microondas Duna, 18.6 km E San Martín, northern central Chihuahua, Mexico.  
Reproductionoviparous (not imputed, fide Zimin et al. 2022) 
TypesHolotype: UAZ, University of Arizona 682; paratypes: MCZ, MVZ, UINHM, FMNH
Holotype: UCM 56881, collected 4 October 1993, by J. A. Lemos-Espinal [speari] 
CommentSubspecies: Leaché and Cole (2007) presented evidence for hybridization between S. cowlesi and S. tristichus. Leache & Reeder 2002 also included S. bellii (= S. edbellii) in the synonymy of S. cowlesi. C. u. speari is a synonym of S. cowlesi (A. Leaché, pers. comm., 8 Oct 2021). 
EtymologyNamed after the late Raymond B. Cowles of the University of California at Los Angeles, famed for his studies of desert reptiles and their temperature relations.

speari: The genitive singular patronym honors Norman E. Spear, Distinguished Professor of Psychology at the State University of New York at Binghamton, where he is Co-director of the Center for Developmental Psychology, and was a mentor for David Chiszar. 
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