196 COLUBEID^. 



A. Head olive above. 



a. cJ (V. 185; C. 83). E. Africa. Sir J. Kirk [C.]. 



b. Yg. (V. 186; C. 86). Coast of Zanzibar. 



B. Head black above. 



c. Yg. (V. 189 ; C. 87).' Mombasa. D. J. Wilson, Esq. [P.]. 



5. Coronella coronata. 



Calamaria coronata, Schleg. Phys. Serp. ii. p. 46 (1837). 



Coronella (Meizodon) bitorquata, Gimth. Proc. Zool. Soc. 1860, 



p. 428, fig. 

 coronata, Jan, Arch. Zool. Anat. Phys. ii. 1863, p. 254, and 



Icon. Gen. 15, pi. iii. fig. 1 (1866). 

 Mizodon coronatus, Steind. Sitzb. Akad. Wien, ixii. i. 1870, p. 332. 

 Meizodon bitorquatum, Matschie, Zool. Jahrb. v. 1890, p. 332. 



Snout scarcely prominent. Eostral a little broader than deep, 

 just visible from above ; internasals as long as or shorter than the 

 prsefrontals ; 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 prte- and two post- 

 oculars ; temporals 1 + 2 ; eight upper labials, fourth and fifth 

 entering the ej'e ; four lower labials in contact with the anterior 

 chin-shields, which are as long as the posteiior. 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. 



a. Yg. (V. 205 ; C. 75). Senegal. (Tvpe of C. bitorquata.) 



b. $ (Y. 188; C. 68). McCarthy Island. Officers of the Chatham 



c. d" (V. 180 ; C. 70). W. Africa. 



Museum [P.]. 



6. Coronella regularis. 



Meizodon regularis, Fischer, Abh. Nat. Hamh. iii. 1856, p. 112, pi. iii. 



fig. 3 ; Giinth. Cat. p. 250 (1858) ; Matschie, Zool. Jahrb. v. 1890, 



p. 614. 

 Coryphodon margaritiferus, Giinth. Cat. p. 109. 

 Coronella (Meizodon) regularis, Giinth. Proc. Zool. Soc. 1862, p. 428, 



fig. ; Jan, Icon. Gen. 15, pi. iii. figs. 2 & 3 (1866) ; Fischer, Oster- 



Progr. Ak. Gymn. Humh. 1883, p. 15. 

 elegans, Jan, Arch. Zool. Anat. Phys. ii. 1863, p. 255. 



Yery closely allied to the preceding. Diff'ers 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 



