176 COLUBRID. 
Snout broad, much depressed. Rostral at least twice as broad as: 
deep, scarcely visible from above; internasals as long as or a little 
shorter than the prefrontals; frontal once and two thirds to twice 
as long as broad, longer than its distance from the end of the snout, 
shorter than the parietals ; loreal once and a half to twice as long 
as deep; one preocular, extending to the upper surface of the head 
but not reaching the frontal; two postoculars (exceptionally one 
or three); temporals 142; eight upper labials, fourth and fifth 
entering the eye, sixth usually in contact with the parietal; four 
or five lower labials in contact with the anterior chin-shields, which 
are as long as or a little shorter than the posterior. Scales in 19 
to 25 rows. Ventrals 153-192; .anal divided; subcaudals 40-54. 
Pale brown or greyish above, with small brown spots or with more 
or less distinct darker and lighter longitudinal streaks ; some large 
dark-brown or black markings, or a large blotch usually present 
on the occiput and nape, descending on the sides of the neck ; head 
and nape sometimes entirely black above ; upper lip whitish, with 
an oblique blackish streak below the eye; lower parts yellowish or 
coral-red, uniform or more or less spotted with black, the spots 
sometimes confluent along the middle of the belly. 
Total length 550 millim.; tail 90. 
Southern Spain, Baleares, Lampedusa, North Africa. 
a-b. 2 (Sc. 21; V. 182; Algeciras, ~ Lieut. Boger [P.]. 
C. 47) & yg. (Sc. 21; 
V.171; C50). 
ce. g (Sc. 23; V. 164; Andalusia. Lord Lilford [P.]. 
©. 50). 
d. 3 (Sc. 21; V.177; Tangier. M. H. Vaucher [C.]. 
C, 48). 
é. Her. (Se. 21; V.178; Tangier. 
C. 50). 
i:2, baa state (Sc. 23), Island off Coast of Rev.R.T. Lowe [P.]. 
Mogador, (Type of C. brevis.) 
g-n. 2 (Se. 25; V.176; — City of Morocco, J. G. Fischer Col- 
“ay g. (Sc. 23, 23, lection. 
23, 21; V. 162, 
171, 178, 177, 180,173; 
©. 46, 44, 41, 40, 42; 
41). 
0. 7 (Sc. 21; V. 169; Morocco. 
C. 49). 
p- Q (Be. 20; V. 192; Algiers. PP] Sclater, Esq. 
q: a 19; V.180; Algiers, ef 
©. 44). 
r. gd (Se. 19; V.171; Hammam Meskou- Dr, J. Anderson [P.}, 
©. 54). tine, Algeria. 
&. can 19; V. 172; Algeria. Canon Tristram [C. |. 
tv. 2 (Se. 21,19; V.165, Tunis, Mr. Fraser [C.]. 
176; ©. 50,48) & hgr. 
(Se. 19; V. 184; C. 51). 
