|Uromastyx geyri, Saharan Uromastyx|
L. Müller, 1922
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.
U. geyri is a relatively small, slender species for the genus, with an average length of around 34 cm (13 in). This lizard is usually beige or orange with lighter spots. They are one of the brightest colored species of Uromastyx, colors of this genus are the "Red" geyri and "Yellow" geyri, color being their only difference. The red phase often being nearly solid reddish to neon pumpkin orange with the yellow 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 a medium-sized species, many averaging 11–14 in (28–36 cm) in length, and weighing 250 grams (8.8 oz) or more as adults.
- "Uromastyx geyri ". The Reptile Database. www.reptile-database.org.
- Beolens B, Watkins M, Grayson M. 2011. The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN 978-1-4214-0135-5. (Uromastyx geyri, p. 100).
- Müller L. 1922. "Über eine neue Uromastix-Art aus der Zentral-Sahara [= About a new Uromastix species from the Central Sahara]". Naturwissenschaftlicher Beobachter, Frankfurt 63: 193-201. ("Uromastix [sic] geyri ", new species). (in German).