106 THE EEPTILES OF EGYPT. 
presented by the Berlin Museum to that of Paris appears in A. Dumeril's Catalogue 1 
under A. mutabilis along with Olivier's types of A. ruderata. 
Mr. Boulenger has described from Somaliland, under the name of A. robecchii 2 , a very 
handsome lizard allied to this species, but distinguished from it by " the very slight 
difference in length between the third and fourth toes, the larger ear-opening, and the 
absence of a fringe above it, and the more strongly keeled dorsal scales." The lizard 
recorded by Professor Vaillant 3 from the same region under the name of A. ruderata 
may possibly prove to be A. robecchii. 
Agama sinaita, Hey den. (Plate X. fig. 1.) 
Ayama sinaita, Heyden, Riipp. Atlas nordl. Afr. 1827, p. 10, pi. iii. ; Dum. & Bibr. iv. 1837, p. 509 ; 
A. Dumeril, Cat. Rept. Mus. Paris, 1881, p. 103; Peters, Mon. Berl. Ak. 1862, p. 271 ; 
Boettger, Ber. Senck. nat. Ges. 1879-80, p. 195; Kat. Rept. Mus. Senck. 1893, p. 49; 
Blgr. Cat. Liz. B. M. i. 1885, p. 339; Ann. & Mag. N. H. (5) xx. 1887, p. 407; Werner, 
Verh. zool.-bot. Ges. Wien, xliii. 1894, p. 359; Anderson, Herp. Arabia & Egypt, 1896, 
pp. 27, 99. 
Agama arenaria, Heyden, Riipp. Atlas nordl. Afr. 1827, p. 12. 
Podorrhoa (Pseudotrapelus) sinaita, Fitz. Syst. Rept. 1843, p. 81. 
Trapelus sinaitus, Gray, Cat. Liz. B. M. 1845, p. 259; Giinther, Proc. Zool. Soc. 1864, p. 489. 
Trapelus sinaiticus, Tristram, West. Palest. 1884, p. 154, pi. xvi. fig. 3. 
Agama sinaitica, Riipp. Mus. Senck. iii. 1845, p. 302 ; Bedr. Bull. Soc. Moscou, 1879, no. 3, 
p. 37. 
Agama mutabilis, Blgr. (non Merrem) Cat. Liz. B. M. i. 1885, p. 338; Boettger {non Merr.), 
Kat. Rept. Mus. Senck. 1893, p. 48. 
Agama sinaiticus, Hart, Fauna & Flora of Sinai &c. 1891, p. 210. 
1 ? . Plain of Suez. 
1 8 > 1 2,1 juv. Stony desert above Wadi Hoaf. 
1 2. Guarda, Dongola. Surgeon-Captain R. H. Penton, D.S.O. 
Body rounded, moderately depressed. Head cordate, much shorter than the tibia 
and more rounded in the male than in the female ; the occipito-parietal and supra- 
orbital regions full and prominent ; snout short ; nostril slightly above or on the line 
of the canthus rostralis and directed backwards and upwards, in the hinder part of a 
rather large and swollen nasal shield; ear larger than the eye-opening; skin of the 
neck and throat in loose folds. Limbs long and slender, the fore limb when laid 
forwards has the wrist in advance of the snout ; the hind limb when stretched 
forwards has the tip of the fourth toe as far forward as the snout, or it may only 
reach to the eye ; the tibia is longer than the distance between the occiput (skull) and 
' Cat. Rept. 1851, p. 103. 
2 Ann. Mus. Civ. Genova, ser. 2, xii. (xxxii.) 1891, p. 6, pi. i. fig. 1. 
3 Revoil, Faune et Flore Pays Comalis, 1882, Rept. et Batr. p. 8. 
