240 THE REPTILES OF EGYPT. 
Sennaar. It has a pointed tail ending in a curved claw, but differs from the former in 
having only 5 scales between the eyes instead of 12-15, and in having a fewer number 
of scales round the body, viz. 41-45. Its dorsal spots are confluent into a zigzag band. 
The snake from Khartum, in the province of Sennaar, described as om-magneb in the 
Atlas (pi. xx. fig. 3) to Brocchi's posthumous work 1 , may very possibly be this species. 
It is stated to have had 181 ventrals and 20 subcaudals, and the colour is said to have 
been " supra pallide flavescens, maculis magnis confluentibus brunneis (vel colore di 
marrone carico)." The term applied to it is stated by Brocchi's editor to be derived 
from " genab," which, in the idiom of Sennaar, means wicked. 
Herodotus 2 relates that there were sacred serpents at Thebes of small size, and 
with two horns growing out of the top of the head, and that they were perfectly 
harmless. They may have been specimens of the horned viper with their poison- 
fangs removed, and in this sense harmless ; but it is also possible that the natives 
of those days, 460-454 B.C., may have practised a deception on the Greek historian 
similar to that to which the Swedish naturalist 3 was subjected in 1750-51 a.d., who 
also states that his horned snake was not poisonous. 
Ehyx jaculus, Hasselq. & Linn. (Plate XXXIII. & Plate XXXIII. A.) 
Angnis cerastes, Hasselquist, Acta Soc. Reg. Sc. Upsal. 1751, p. 28 ; Hasselq. & Linn. Iter 
Palajst. 1757, p. 320; Linn. Syst. Nat. 1766, p. 391; Gmelin, Syst. Nat. Linn. i. pt. 3, 
1788, p. 1120 ; Schneid. Hist. Amph. 1801, p. 317. 
Anguis jaculus, Hasselq. & Linn. Iter Palaest. 1757, p. 319; Linn. Mus. Adolph. Frid. ii. 1764, 
p. 48; Syst. Nat. i. 1766, p. 391 ; Gmel. Syst. Nat. Linn. i. pt. 3, 1788, p. 1120; Schneider, 
Hist. Amph. 1801, p. 319. 
Anguis mi/iaris, Pallas, Reise, ii. 1771, p. 718; Zoogr. Ross. -As. iii. 1811, p. 54. 
Boa turcica, Oliv. Voy. Emp. Othom. i. 1801, p. 199, pi. 16. fig. 2. 
Eryx cerastes, Daud. Hist. Rept. vii. 1803, p. 254. 
Eryx jaculus, Daud. Hist. Rept. vii. 1803, p. 257; Schneider, Denksch. Ak. Wissensch. Munchen, 
vii. 1821, p. 129 ; Wagler, Syst. Amph. 1830, p. 192 ; Gray, Syn. Rept. Griffith An. Kingd. ix. 
1831, p. 98 ; Bibr. et Bory de St. Vine. Exped. Sc. Mor., Zool. Rept. 1833, p. 73 ; Reuss, Mus. 
Senck. i. 1834, p. 133 ; part., Bonap. Mem. R. Ac. Sc. Torino, (2) ii. 1840, p. 428 ; Gray, Zool. 
Misc. 1842, p. 45 ; Dum. & Bibr. vi. 1844, p. 463 ; Schlegel, Bijdr. tot de Dierk. i. 1848, p. 2; 
Gray, Cat. Snakes B. M. 1849, p. 109; A. Dumenl, Cat. Rept. Mus. Paris, 1851, p. 213; 
Peters, Mon. Berl. Ak. 1862, p. 272 ; Strauch, Mem. Ac. Sc. St. Petersb. (vii.) iv. no. 7, 1862, 
p. 51 ; Jan, Icongr. Gen. 4 livr. 1864, pi. ii. fig. 1, texte, 1865, p. 72; Westphal-Castel. Cat. 
Rept. 1869, p. 27 ; Strauch, Mem. Ac. St. Pdtersb. (vii.) xxi. no. 4, 1873, p. 29 ; Schreiber, 
Herp. Europ. 1875, p. 312 ; Blanford, Eastern Persia, (Zool.) ii. 1876, p. 401 ; Gasco, Viagg. 
inEgitto, 1876, p. 116; Boettger, Zeitschr. ges. Nat. (Giebel) xlix. 1877, p. 287; Ber. Senck. 
Ges. 1879-80, p. 166 ; Radde's Faun. Casp.-Geb. 1886, p. 73; Zool. Jahrb. iii. 1888, p. 938 ; 
1 Giorn. Viagg. Egitto, &c. 1841-43. 2 ii. cap. 74. 3 Iter Palsest. p. 32. 
