Biology:Holbrookia
| Holbrookia | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Squamata |
| Suborder: | Iguania |
| Family: | Phrynosomatidae |
| Genus: | Holbrookia Girard, 1851 |
Holbrookia is a genus of earless lizards, known commonly as the lesser earless lizards, in the family Phrynosomatidae. The genus contains six recognized species, which are found throughout the Southwestern and Central United States and northern Mexico. They are characterized by having no external ear openings, presumably to prevent soil from entering their bodies when they are digging.
Etymology
The generic name, Holbrookia, is in honor of American zoologist John Edwards Holbrook.[1][2]
Description
Lesser earless lizards grow to about 2.0-2.5 in (50–65 mm) snout-to-vent length, plus a tail of 3–4 in (75–100 mm). They are typically grey or tan in color, with black blotching. The males usually have blue patches on either side of their bellies, whereas the females do not. Females often change to have bright orange patches when gravid.
Behavior
Holbrookia species are diurnal, basking lizards. They spend the vast majority of their time sunning on rocks, even in the heat of the day, until the surface temperature reaches around 104 °F (40 °C), when they will retreat to a rock crevice or burrow.
Diet
Lesser earless lizards are insectivorous.
Species
The genus Holbrookia contains six species recognized as valid:.[3]
| Image | Scientific Name | Common Name | Distribution |
|---|---|---|---|
| Holbrookia approximans Baird, 1859 | speckled earless lizard | Southwestern United States and northern Mexico. | |
_(9-24-12)_california_gulch,_pajarito_mts,_scc,_az_-01_(8024040182).jpg) |
Holbrookia elegans Bocourt, 1874 | elegant earless lizard | United States and Mexico |
| Holbrookia lacerata Cope, 1880 | northern spot-tailed earless lizard | Mexico, in the states of Coahuila, Nuevo León and Tamaulipas, and to the United States, in south-central Texas. | |
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Holbrookia maculata Girard, 1851 | lesser earless lizard | United States and northern Mexico |
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Holbrookia propinqua Baird & Girard, 1852 | keeled earless lizard | Southern Texas and northeast Mexico |
| Holbrookia subcaudalis Axtell, 1956 | southern spot-tailed earless lizard | Mexico and the United States in southern Texas. |
Geographic range
Earless lizards (genera Cophosaurus and Holbrookia) are found in the Southwestern and Central United States, in Texas , Arizona, New Mexico, Utah, Colorado, Kansas , Oklahoma, and as far north as Nebraska, South Dakota, and Wyoming. They are also found in Mexico, in the states of Sonora, Chihuahua, Coahuila, Sinaloa, Durango, Zacatecas, San Luis Potosí, Nuevo León, Tamaulipas, and Veracruz.
See also
- Genus Cophosaurus, the greater earless lizard
References
- ↑ Beltz, Ellin (2006). Scientific and Common Names of the Reptiles and Amphibians of North America – Explained. [1]
- ↑ Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN:978-1-4214-0135-5. (Holbrookia, p. 125).
- ↑ "Holbrookia ". The Reptile Database. www.reptile-database.org.
External links
Further reading
- Girard C (1851). "On a New American Saurian Reptile". Proc. American Assoc. Adv. Sci., New Haven 4: 200–202. (Holbrookia, new genus, pp. 200–201; H. maculata, new species, pp. 201–202).
Wikidata ☰ Q2707849 entry
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