Spiny-tailed lizard
| Uromastyx | |
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| Egyptian spiny-tailed lizard (Uromastyx aegyptia) | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Subphylum: | Vertebrata |
| Class: | Reptilia |
| Order: | Squamata |
| Suborder: | Iguania |
| Family: | Agamidae |
| Subfamily: | Uromasticinae |
| Genus: |
Uromastyx Merrem, 1820 |
| Species | |
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Uromastyx is a genus of African and Asian agamid lizards, the member species of which are commonly called spiny-tailed lizards, uromastyces, mastigures, or dabb lizards. Lizards in the genus Uromastyx are primarily herbivorous, but occasionally eat insects and other small animals, especially young lizards. They spend most of their waking hours basking in the sun, hiding in underground chambers at daytime or when danger appears. They tend to establish themselves in hilly, rocky areas with good shelter and accessible vegetation.
The generic name (Uromastyx) is derived from the Ancient Greek words ourá (οὐρά) meaning "tail" and -mastix (μαστιξ) meaning "whip" or "scourge", after the thick-spiked tail characteristic of all Uromastyx species.
The following species are in the genus Uromastyx. Three additional species were formerly placed in this genus, but have been moved to their own genus, Saara.
Their size ranges from 25 cm (10 in) (U. macfadyeni) to 91 cm (36 in) or more (U. aegyptia).Hatchlings or neonates are usually no more than 7–10 cm (3–4 in) in length. Like many reptiles, these lizards' colors change according to the temperature; during cool weather they appear dull and dark but the colors become lighter in warm weather, especially when basking; the darker pigmentation allows their skin to absorb sunlight more effectively.
Their spiked tail is muscular and heavy, and can be swung at an attacker with great velocity, usually accompanied by hissing and an open-mouthed display of (small) teeth. Uromastyxs generally sleep in their burrows with their tails closest to the opening, in order to thwart intruders.
Uromastyx inhabit a range stretching through most of North and Northeast Africa, the Middle East, ranging as far east as Iran. Species found further east are now placed in the genus Saara.Uromastyx occur at elevations from sea level to well over 900 m (3,000 ft). They are regularly eaten, and sold in produce markets, by local peoples. Uromastyx tend to bask in areas with surface temperatures of over 50 °C (120 °F).
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Wikipedia