164 COLUBRID. 
ce. dO (V. 164; C. P). Ndi, Teita Mts., Pet . W. Gregory 
E. Africa. [P.]. 
d. Hgr. (V. 158; C.93). W.of Mombasa. Mp 1 W. Gregory 
ef. f Ye (V. 162, 169; Kilimandjaro, F. J. Jackson, Esq. 
Fl | (V.. 160; Zanzibar. Sir J. Kirk [0.}. 
C. 90) & yg. (V. 161; 
C. 90). 
i-k. od (V.198; ©. 104) Zanzibar. Dr. J. G. Fischer. 
l,m. Hgr. (V. 169,170; Zomba, Nyassaland. ne 2 H. Johnston 
P, 94). 
n. Ad, head & neck. Zambesi. sity J. Kink [ oh 
skin, bad state. Ungora, Upper Nile. Capt. 8 [ 
0 Hier Ashe i 180 milesupthe J. Wy. TOsse, 
Her. (V. 176,170; Asa 
6. 100, 107) & yg 
(V. 181; C. 116). 
r. 2 (V. 171; C. P), Sierra Leone. n,¢ Hart, Esq. 
. (V. 166; C.?). Cette Cama, Gaboon. re 
= Ye, . 168, 169; Ambriz, Angola. Mr. Rich [C.}. 
v. Yg.(V. 170; C.?).  W. Africa. .' Mr. Rich [0. 4, 
w. 2 (V. 172; C. P). W. Africa. Mr. Fraser } 
x. 6 (V.179; 0.110). W. Africa. Mr, Dalton [C 
y. Skull. Asaba, Niger. J. W. Crosse, Esq. 
[P.}. 
a. Skull. Egypt. 
9. Psammophis furcatus. 
pr ae moniliger, var. furcatus, Peters, Mon. Berl. Ac. 1867, 
P 
—— sibilans, Boettg. Ber. Senck, Ges, 1886, p. 5. 
—— sibilans, var. furcata, Boettg. Ber. Senck. Ges. 1894, p. 92. 
—— furcatus, Bouleng. Proc. Zool, Soc. 1895, p. 538. 
Snout once and a half as long as the eye; forehead strongly 
grooved. Rostral as deep as broad, visible from above; nostril 
between two shields; internasals half as long as the preefrontals ; 
frontal nearly twice as long as broad, much narrower, in the middle, 
than the supraocular, longer than the parietals; loreal once and 
two thirds as long as deep; one preocular, extensively i in contact 
with the frontal; two or three postoculars; temporals 2+3; eight 
upper labials, third deeper than second and fourth, fourth and fifth 
entering the eye, fifth nearly as long as the eye; four lower labials 
in contact with the anterior chin-shields, which are shorter than 
the posterior. Scales in 17 rows. Ventrals 158-179; anal 
divided ; subcaudals 95-114. Brown above, the scales edged with 
darker, a narrow yellow vertebral line, bifurcating on the occiput, 
its branches extending to the anterior border of the frontal shield; 
a broader yellow streak on each side, from the eye to the end of the 
tail; upper lip, lower half of outer row of scales, and lower parts 
