ACANTHODACTYLUS PARDALIS. 151 
counting the scales, but the existence of these exceptions links the variety with the 
typical form. The high lepidosis sometimes met with in forms distinctly referable to 
var. aspera appears to be brought about by the multiplication of the small lateral scales 
as distinguished from the truly dorsal scales. Division of the first and fourth supra- 
oculars is of most frequent occurrence in the numerously scaled typical form, and it is 
in it also that the greatest number of femoral pores occurs. In examples of var. aspera 
with from 36 to 38 rows of scales there are from 17 to 20 femoral pores, whereas 
in the deltaic lizards with 49 scales and upwards, 20 to 32 femoral pores may be 
present. 
These lizards from the delta approach A. syriacus in the character of the body-scales, 
but, unlike it, the first supraocular is completely broken up, and the fourth is sub- 
divided, and, moreover, their scales are much less numerous and the posterior dorsals 
are more enlarged. A. boskianus is also nearly allied to A. cantoris of Arabia and of 
the region to the north-east. 
Outside Egypt and the Egyptian Sudan, this species is distributed to the west as far 
as the frontier of Morocco, and, in Algeria, it is found in the Tell and on the plateau, 
at elevations over 3000 feet above the sea. It is also present in the Algerian Sahara, 
e. g. at Biskra 360 feet, and at El Aghouat 2437 feet above the level of the sea. It 
extends northwards from Egypt into Southern Syria, and to the east into the Sinaitic 
Peninsula and Arabia. 
Acanthodactylus pardalis, Licht. (Plate XXI.) 
Lacerta partialis, Licht. Doubl. Mus. Berl. 1823, p. 99. 
Lacerta savignyi, M.-Edw. Ann. Sc. Nat. xvi. 1829, pp. 73, 85, pi. vi. fig. 4. 
Acanthodactylus savignyi, part., Durn. & Bibr. v. 1839, p. 273 ; Gray, Cat. Liz. B. M. 1845, p. 37 ; 
Gervais, Ann. Sc. Nat. (3) x. 1848, p. 204 ; Guichenot, Explor. Alg., Sc. Phys. Zool. v. 
1850, p. 14; part., A. Dum. Cat. Rept. Paris Mus. 1851, p. 128; Licht. Nomenc. Rept. Mus. 
Berl. 1856, p. 15; Strauch, Mem. Ac. St. Petersb. (vii. ser.) iv. no. 7, 1862, p. 36; Gasco, 
Viagg. in Egitto, pt. ii. 1876, p. 108; part., Boettger, Bericht Senck. nat. Ges. 1879-80, 
p. 178 ; Blgr. Proc. Zool. Soc. 1881, p. 744 ; Cat. Liz. B. M. iii. 1887, p. 63 ; part., Vaillant, 
Miss. Revoil Pays Comalis, Rept. & Batr. 1882, p. 19; Tristram, Fauna West. Palest. 1884, 
p. 150; Lataste, Ann. Mus. Civ. Genova, ser. 2, ii.(xxii.) 1885, p. 483; Werner, Verh. zool.- 
bot. Ges. Wien, xlii. 1892, p. 354 ; op. cit. xliv. 1895, p. 82. 
Lacerta deserti, M.-Edw. Ann. Sc. Nat. xvi. 1829, pp. 79 et 86, pi. vi. fig. 8 and pi. viii. fig. 6 
{nee Lepechin); Strauch, Mem. Ac. St. Petersb. (vii.) iv. no. 7, 1862, p. 32; Bedriaga, Bull. 
Soc. Imp. Nat. Mosc. 1879, no. 3, p. 31. 
Scapteira maculata, Gray, Ann. Mag. N. H. i. 1838, p. 281. 
Zootoca deserti, Gunther, Proc. Zool. Soc. 1859, p. 470; op. cit. 1864, p. 488; Blgr. Proc. Zool. 
Soc. 1881, p. 741. 
Acanthodactylus bedriagai, Lataste, Le Natur. 1881, p. 357 ; Blgr. Proc. Zool. Soc. 1881, p. 746, 
pi. lxiii. fig. 1 ; Boettger, Kobelt's Reis. Alg. u. Tun. 1885, p. 469. 
