274 THE REPTILES OP EGYPT. 
COLUBER '. 
Coluber, part., Linn. Syst. Nat. i. 1766, p. 375. 
" Maxillary teeth 12 to 22, subequal in size ; anterior mandibular teeth longest. Head 
distinct from neck, elongate ; eye moderate or rather large, with round pupil ; loreal 
sometimes absent. Body elongate, cylindrical or feebly compressed ; scales smooth 
or keeled, with apical pits, in 15 to 35 rows; ventrals rounded or angulate laterally. 
Tail moderate or long ; subcaudals in two rows." — Boulenger. 
Coluber situla, Linn. (Plate XXXVII. A. fig. 2.) 
Coluber situla, Linn. Syst. Nat. i. 1758, p. 223 ; Mus. Adolph. Frid. Prod. ii. 1764, p. 44 ; Syst. 
Nat. 12th ed. i. 1766, p. 385. 
Coluber quadrilinealus, Pallas, Zoogr. Ross. -As. iii. 1811, p. 40. 
Coluber trilineatus, Metaxa, Monogr. Serp. Rom. 1823, p. 44 note. 
Coluber leopardinus, Bonap. Faun. Ital. p. & pi. unnumbered, 1834, fig. 1 ; Blgr. Cat. Snakes 
B. M. ii. 1894, p. 41. 
Coluber cruentatus, Steven, Bull. Soc. Imp. Nat. Mosc. viii. 1835, p. 317, pi. 9 (var. /3). 
Callopeltis leopardinus, Bonap. Mem. Ac. Tor. (2) ii. 1839, p. 432; Nordmann in Demidoff, Voy. 
Russ. Merid. iii. 1840, p. 348, pis. vi., viii., & ix. 
Ablabes quadrilineatus, Dum. & Bibr. vii. p. 319. 
Natrix leopardina, Cope, Proc. Ac. Philad. 1862, p. 338. 
Coronella quadrilineata, Jan, Arch. Zool. Anat. Fis. ii. 1863, p. 247 ; Icon. Gen. livr. 13, 1865, pi. 5. 
Callopeltis quadrilineatus, Schreib. Herp. Europ. 1875, p. 277. 
Snout obtuse, rather broad ; rostral broader than high, scarcely, if at all, visible 
from above ; internasals slightly broader than long or nearly as broad as long, smaller 
than the prefrontals, more or less quadrangular ; prefrontals considerably longer than 
the internasals ; frontal shield-shaped, as long as the median suture of the parietals, 
equal to the distance between its anterior border and the tip of the snout, nearly twice 
as broad as the supraocular ; its anterior breadth equal to two-thirds of its length ; 
parietals moderately long, equal to the length of the frontal, and one-half the length 
of the prefrontal ; loreal nearly twice as long as high ; one praeocular, broadly excluded 
from the frontal ; two postoculars ; 8 upper labials, the fourth and fifth entering the 
orbit ; temporals 1, l-f-2, 2 -\-2, or 24-3 ; anterior chin-shields nearly twice as large as 
the posterior pair, in contact with five sublabials, posterior pair separated by scales. 
25 to 27 rows of smooth scales across the body ; ventrals rounded or slightly angulate 
at their sides, 220-260 ; A. 1/1 ; S.C. 68-89. 
Uniform greyish ashy, with a mesial dorsal whitish line or narrow band margined 
with black, with a broader brownish band external to it on each side also margined 
externally with black; the sides with black reticulations. Under surface whitish, 
1 Cat. Snakes B. M. ii. 1894, p. 24. 
