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Crotaphytus bicinctores , Photo: National Park Service

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Lepidosauromorpha
Superordo: Lepidosauria
Ordo: Squamata
Cladus: Unidentata, Episquamata
Cladus: Toxicofera
Subordo: Iguania
Infraordo: Pleurodonta

Familia: Crotaphytidae
Genus: Crotaphytus
Species: Crotaphytus bicinctores

Crotaphytus bicinctores N.M. Smith & Tanner, 1972

Uetz, P. & Hallermann, J. 2023. Crotaphytus bicinctores. The Reptile Database. Accessed on 18 October 2019.
Hammerson, G.A. 2007. IUCN: Crotaphytus bicinctores (Least Concern). The IUCN Red List of Threatened Species 2007: e.T64006A12734174. DOI: 10.2305/IUCN.UK.2007.RLTS.T64006A12734174.en

Vernacular names
English: Great Basin Collared Lizard

The Great Basin collared lizard (Crotaphytus bicinctores), also known commonly as the desert collared lizard or the Mojave black-collared lizard, is a species of lizard in the family Crotaphytidae. The species is endemic to the Western United States.

C. bicinctores is very similar to the common collared lizard, Crotaphytus collaris, in shape and size, but it lacks the bright extravagant colors. Males can be brown to orange and some red or pink on the belly. Females are more black or dark brown. C. bicintores has elongated scales near the claws, and the tail is more triangular in shape than round as with C. collaris.[3]
Held by human hand

C. bicinctores has a broad head, large hind legs, and derives its specific name from the pair of black bands on the neck. Males have broader heads than females, with a dark-colored throat and more pronounced orange crossbands on the body. Adults range in size from 2.5 to 4.5 in (6.4 to 11.4 cm) in snout-to-vent length (SVL), with a thick tail that is often twice as long as the body.[4]
Geographic range and habitat

The Great Basin collared lizard is endemic to the Western United States, and is found in California, most of Nevada, southeastern Oregon, southern Idaho, and the western regions of Utah and Arizona. It is usually found in rocky regions of arid deserts, and is most common in desert scrub and desert wash habitats. It is widely distributed throughout the Mojave, Sonoran, and southeastern Great Basin deserts.[3][4]

C. bicinctores eats primarily arthropods, but will also use its powerful jaws to eat small vertebrates including lizards, snakes, and rodents. It has been known to occasionally consume plant matter.[4][5]
Wikimedia Commons has media related to Crotaphytus bicinctores.

U.S. Geological Survey (2017). "Great Basin Collared Lizard (Crotaphytus bicinctores) rGBCLx_CONUS_2001v1 Range Map". Gap Analysis Project. doi:10.5066/F7CC0ZVM.
Species Crotaphytus bicinctores at The Reptile Database
Stebbins RC (2003). A Field Guide to Western Reptiles and Amphibians, Third Edition. The Peterson Field Guide Series ®. Boston and New York: Houghton Mifflin. ISBN 978-0-395-98272-3. xiii + 533 pp., 56 plates, 39 figures, 204 maps. (Crotaphytus bicinctores, pp. 272-273 + Plate 27 + Map 85).
"California Herps". Retrieved 19 August 2015.

Kucera T (1998). "Life history account for Great Basin Collared Lizard". California Department of Fish and Wildlife. Retrieved 20 August 2015.

Further reading

Smith, Nathan M.; Tanner, Wilmer W. (1972). "Two new subspecies of Crotaphytus (Sauria: Iguanidae)". Great Basin Naturalist 32 (1): 25-34. (Crotaphytus collaris bicinctores, new subspecies, pp. 27-29, Figures 1-3).

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