196 COLUBRID&. ~ 
A. Head olive above. 
do (V. 185; C. 83). E. Africa. Sir J. Kirk [C.]. 
Yg. (V. 186; C. 86). Coast of Zanzibar. 
B. Head black above. 
Yg. (V. 189; C. 87)... Mombasa. D. J. Wilson, Esq. [P.]. 
5. Coronella corenata. 
Calamaria coronata, Schleg. Phys. Serp. ii. p. 46 (1837). 
Coronella (Meizodon) bitorquata, Giimth. Proc. Zool. Soc. 1860, 
428, fig. 
ae coronata, Jan, Arch. Zool. Anat, Phys. ii. 1863, p. 254, and 
Icon. Gén, 15, pl. iii. fig. 1 (1866). 
Mizodon coronatus, Steind. Sitzb. Ahad. W ten, 1xii. 1. 1870, p. 352. 
Meizodon bitorquatum, Matschie, Zool. Jahrb. vy. 1890, p. 382. 
Snout scarcely prominent. Rostral a little broader than deep, 
just visible from above ; internasals as long as or shorter than the 
prefrontals; frontal once and a half as long as broad, a little longer 
than its distance from the end of the snout, a little shorter than the 
parietals; loreal a little longer than deep; one pree- and two post- 
oculars ; temporals 1+2,; eight upper labials, fourth and fifth 
entering the eye; four lower labials in contact with the anterior 
chin-shields, which are as long as the posterior. Scales in 19 rows. 
Ventrals 180-205; anal divided ; subcaudals 63-75. Olive above, 
which colour extends to the outer ends of the ventrals; a black 
band across the occiput, another across the nape; a black spot on 
the loreal region and another on each side of the neck; the space 
between the black bands and spots yellowish; belly yellowish. 
Total length 520 millim.; tail 115, 
West Africa. 
. Yg. (V. 205; C. 75). Senegal. (Type of C. bitorquata.) 
A 2 (V. 188 ; é, 68). McCarthy Island. Officers of the Chatham 
Museum [P. }. 
ce. d (V. 180; C. 70). W. Africa. 
6. Coronella regularis. 
Meizodon regularis, Fischer, Abh. Nat. Hamh, iii. 1856, p. 112, pl. iii. 
fig. 3; Ginth. Cat. p. 250 (1858) ; Matschie, Zool. Jahrb. vy. 1890, 
614, ‘ 
Gryphon margaritiferus, Giinth. Cat. p. 109. 
Coronella (Meizodon) regularis, Giinth. Proc, Zool. Soc. 1862, p. 428, 
fie. ; Jan, Icon, Gén. 15, pl. ili. figs. 2 & 3 (1866) ; Fischer, Oster- 
Progr. Ak, Gymn. Hamb. 1885, p. 15. 
elegans, Jan, Arch. Zool. Anat. Phys. ii. 1863, p. 255. 
Very closely allied to the preceding. Differs in the rather shorter 
frontal shield, the presence of five lower labials in contact with the 
anterior chin-shields, and in the coloration. Dark olive, each scale 
black in the centre and with a white dot; three black bands across 
