atl RE 
eee eee Re eee a ee 
—_ a :~ v 
260 COLUBRID. 
Cercocalamus collaris, Giinth. Ann. § Mag. N. H. (8) xi. 1863, 
___p.2l, pl. iii, fig. A, and Biol, C.-Am., Rept. p. 157 (1895). 
Uriechis capensis, Giinth. Ann. § Mug. N. H. (3) xv. 1865, p. 89; 
Jan, Icon. Gén. 15, pl. i. fig. 5 (1866) ; Peters, Reise n. Mossamb. 
iii, p. 112 (1882). 
Pag yer part., Giinth. Ann. § Mag. N. H. (6) i. 1888, 
p. 324. 
Diameter of eye a little greater than its distance from the oral 
margin. Rostral broader than deep, the portion visible from above 
about one third as long as its distance from the frontal ; internasals 
shorter than the preefrontals; frontal once and a half to once and 
two thirds as long as broad, much longer than its distance from the 
end of the snout, a little shorter than the parietals; nasal entire, 
in contact with the preocular; one postocular; temporals 1+1; 
seven upper labials, third and fourth entering the eye, fifth in 
contact: with the parietal ; symphysial in contact with the anterior 
chin-shields, which are as long as or a little longer than the 
posterior and in contact with three lower labials. Scales in 15 
rows. Ventrals 138-166; anal entire ; subcaudals 37-53. Yellow 
or pale reddish brown above, with or without a blackish vertebral 
line, yellowish white beneath; upper surface of head and nape 
black, with or without a yellowish cross-bar behind the parietal 
shields, the black of the nape descending to the sides of the neck; 
sides of head yellowish, the shields bordering the eye black. 
Total length 335 millim.; tail 70. 
East and South Africa. 
a. Hgr. 2 (V. 158; C.40). Caffraria. Sir A. Smith [P.]. 
- (One of the types.) 
b. 9 (V. 159; CO. 47). De Kaap Goldfields, Dr. P. Rendall [C.}. 
Transvaal, 
c-l. 3 (V. 138, 189; C. 45, Zanzibar. Sir J. Kirk [C.]. 
44) & Q (V. 150, 150, 
152, 148, 149, . 155, 
149; ©.?, 44, ?, 42, 41, 
43, 44). 
m. 2 (V. 141; C. ?). —--% Dr. Giinther [P.]. 
(Type of Cercocalamus collaris.) 
8. Aparallactus nigriceps. 
Uriechis nigriceps, Peters, Mon, Berl. Ac. 1854, p. 623, and Reise = 
n. Mossamb. iii. p. 111, pl. xviii. fig. 1 (1882). 
—— atriceps, Jan, Arch. Zool. Anat, Phys. ii, 1862, p. 49, and Icon, 
Gén. 15, pl. i. fig. 4 (1866). 
a nigriceps, Bouleng. Ann. § Mag. N. H. (6) xvi. 1895, 
p- . 
Diameter of eye greater than its distance from the oral margin, 
Rostral broader than deep, the portion visible from above about 
one third as long as its distance from the frontal; internasals much 
shorter than the prefrontals ; frontal once and one third as long 
as broad, much longer than its distance from the end of the snout, 
a little shorter than the parietals; nasal entire, in contact with the 
