130 THE EEPTILES OF EGYPT. 
Mexic. 1834, p. 17; Dum. & Bibr. iv. 1837, p. 541 ; Duvernoy, Cuv. Reg. An., Rept. 1847, 
pi. xiii. fig. 2; Fitz. Syst. Rept. 1843, p. 86; Gray, Cat. Liz. B. M. 1845, p. 261 ; Ruppell, 
Mus. Senck. iii. 1845, p. 303; A. Dum. Cat. Rept. Paris Mus. 1851, p. 108; Klunzinger, 
Zeitschr. Ges. Erd. Berl. xiii. 1872, p. 94 ; Schreiber, Herp. Europ. 1875, p. 474 ; Gasco, 
Viagg. Egitto, pt. ii. 1876, p. 107; Giinther, Burton's Gold Mines of Midian, 1878, p. 398; 
Peters, Mon. Berl. Ak. 1880, p. 307; Blgr. Cat. Liz. B. M. i. 1885, p. 407; op. cit. iii. 1887, 
p. 499 ; Ann. & Mag. N. H. (5) xx. 1887, p. 407 ; Tristram, West. Palest., Rept. & Batr. 1884, 
p. 154 ; Boettger, Kat. Rept. Mus. Senck. 1893, p. 55 ; ? Olivier, Mem. Soc. Zool. France, vii. 
1894, p. 110. 
Mastigura spinipes, Fleming, Phil. Zool. ii. 1822, p. 277. 
Uromastix cegyptius, Anderson, Herp. Arabia & Egypt, 1896, p. 101. 
1 ? . Between Suez and Ismailia. 
1 ? . Plain of Kafr Gamus. 
1 cj . Beltim. Dr. J. G. Rogers. 
1 ? . Suburbs of Cairo. 
Ear with enlarged scales at its anterior border. Body covered with minute conical 
scales, 320 round the middle of the body including the ventrals ; ventrals small, 140 
between the inguinal and gular folds ; enlarged tubercles on the flanks, on the outside 
of the forearm, and on the outer upper surface of the hind limb ; tail depressed, 
gradually tapered ; caudal segments strongly spinose above. 
Yellowish or greenish olive above, suffused with bluish green on the labials and on 
the front of the head ; the upper surface of the limbs punctulated with dusky brown. 
Under surface of the head, the loose skin of the neck, and belly reticulately marked 
with brown. Tail yellow above, brighter yellow below. 
6 . Snout to vent 356 millim. ; vent to tip of tail 255 millim. 
This lizard is generally found along the lines of drainage of the desert, as it there 
finds the sparse vegetation on which it lives. In such localities it constructs deep 
tortuous burrows, some of which I have traced to a depth of 4 feet through very 
hard sand. It is also found in the deep water-worn wadis, where there is frequently a 
better supply of vegetable food than in the open desert. It is said to feed in the early 
morning and at sundown. It is common, for example, on the great plain of Kafr 
Gamus, beyond Abbasiyeh, where it is associated with Agama pallida. 
It is distributed over the desert region of Northern Egypt. Its extension to the 
south is unknown, but it is said to extend into Nubia. Peters has recorded it from 
the south of Cyrenaica ; and M. E. Olivier mentions that he captured an individual, 
in 1892, upon the hills to the north of Biskra, but states that it is very rare in Algeria ; 
the specimen, however, from Biskra, recorded by Dr. Giinther in 1859 as Uromastix 
spinipes, proved to be U. aca>it/iinurus. 
It also occurs in the dry desert portions of the sea-face of the delta, and is likewise 
found in the Sinaitic Peninsula, Southern Judea, Arabia (Midian and Maskat), and in 
the island of Crete. 
