196 COLTJBRID«. 



A. Head olive above. 



a. t? (V. 185 ; 0. 83). E. Africa. Sir J. Kirk [C.]. 



6. Yg. (V. 186; C. 86). Ooast of Zanzibar. 



B. Head black above. 



c. Yg. (V. 189 ; 0. 87).' Mombasa. D. J. Wilson, Esq. [P.]. 



5. Coronella coronata. 



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



Ooronella (Meizodon) bitorquata, Gunth. Proc. Zool. Soc. 1860, 



p. 428, fig. 

 - — - coronata, Jan, Arch. Zool. Anat. Phys. ii. 1863, p. 264, and 



Icon. G&n. 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. 832. 



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 prse- 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 ; beUy yellowish. 



Total length 520 millim. ; tail 115. 



West Africa. 



a. Yg. (V. 205 ; 0. 75). Senegal. (Type of C. bitorquata.) 



b. 2 (V. 188; 0.68). McCarthy Island. Officers of the Chatham 



0. c? (V. 180 ; 0. 70). W. Africa. 



Museum [P.]. 



6. Coronella regularis. 



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



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



p. 614. 

 Coryphodon margaritiferua, Gilnth. Cat. p. 109. 

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



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



Progr. Ak. Gymn. Hamb. 1883, 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 



