Uromastyx geyri is a species of lizard belonging to the family Agamidae. The species is endemic to North Africa.
Common names for U. geyri include Geyr's dabb lizard, Geyr's spiny-tailed lizard, Sahara mastigure, Saharan spiny-tailed lizard, Yellow Niger Uromastyx, and Saharan yellow uromastyx.
The generic name, Uromastyx, is derived from the Ancient Greek words ourá (οὐρά) meaning "tail" and mastiga (μαστίγα) meaning "whip" or "scourge", after the thick-spiked tail characteristic of all Uromastyx species.
The specific name, geyri, is in honor of German zoologist Hans Geyr von Schweppenburg.
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TerrestrialTerrestrial animals are animals that live predominantly or entirely on land (e.g., cats, ants, snails), as compared with aquatic animals, which liv...
Oviparous animals are female animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive...
Precocial species are those in which the young are relatively mature and mobile from the moment of birth or hatching. Precocial species are normall...
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starts withU. geyri is a relatively small, slender species for the genus, with an average total length (including tail) of around 34 cm (13 in). This lizard is usually beige or orange with lighter spots. It is one of the brightest-colored species of the genus Uromastyx. There are two phases of U. geyri, the "red" geyri and "yellow" geyri, color being their only difference. The red phase is often nearly solid reddish to neon pumpkin orange, and the yellow phase is in or near a neon-range. Females are a more pale color than the males, showing more tan variations of the coloring and much less belly coloring as well as less vivid patterns, most females having a simple "freckling" on the back. "Saharans" are medium-sized lizards, many averaging 11–14 in (28–36 cm) in total length, and weighing 250 grams (8.8 oz) or more as adults.
U. geyri is found in rocky, semi-arid habitats.
