90 COLTTBRIB^. 



Ophis albooinctus, Diivernay, I. o. p. 10, -pi. ii. figs. 1-3. 



Coronella rufesoens, Schleff. Phys. Serp. ii. p. 72, pi. ii. figs. 16 & l7 



(1837). 

 Dipsas hippocrepis, Beinh. Vidensk. Selsk. Shrift, x. 1843, p. 251, 



pi. i. figs. 18-20. 

 Crotapliopeltis rufeseens, Smith, III. Zool. S. Afr., JRept. App. p. IS 



(1849) ; Cope, Froc. Ac. Philad. 1860, p. 566 ; Jan, Icon. Gen, 



39, pi. ii. fig. 1 (1872) ; Boettg. Abh. Senck. Ges. xii. 1881, p. 398. 

 ? Dipsas inornatus. Smith, I. c. p. 20. 

 Heterurus rufeseens, Dum. §■ Bib)-, vii. p. 1170 (1854). 



hippocrepis, Dum. 8f Bibr. t. c. p. 1177. 



Leptodeira rufeseens, GUnth. Cat. p. 165 (1858) ; Boettg. Ber. Sench. 



Ges. 1887, p. 162, & 1888, p. 72. 

 Oxyropus melanoerotaphus, Cope, Proc. Ac. Philad. 1860, p. 260. 

 Orotaphopeltis hitamboeia, Peters, Reise n. Mossamb. iii. p. 126 



(1882). 



Eostral broader than deep, searcely visible from above ; inter- 

 nasals shorter than the prsefrontals ; frontal once and one third to' 

 once and two thirds as long as broad, as long as or a little longer 

 than its distance from the end of the snout, shorter than the parietals > 

 loreal as long as deep, or a little longer than deep ; one prseocular 

 (rarely divided) ; two (rarely three) postocnlars ; temporals 1 + 1 or 2 ; 

 eight(rarelynine) upper labials, third, fourth, and fifth (exceptionally 

 fourth and fifth or fourth, fifth, and sixth) entering the eye ; three' 

 or four pairs of large chin-shields, the anterior longer than broad 

 and in contact with four and five lower labials, the others usually 

 broader than long. Scales smooth or faintly keeled, in 19 (excep- 

 tionally 17) rows. Ventrals 144-180; anal entire; subcaudals- 

 32-54. Brown, olive, or blackish above, uniform or with whitish 

 dots which may form cross-bars ; a black band on the temple, 

 usually connected with its fellow across the occiput ; belly whitish. 



Total length 610 millim. ; tail 90. 



Tropical and South Africa, as far north as Senegambia and 

 Nubia. 



c. Hgi'. (V. 159;C. 38). Gambia. T. Mitchell, Esq. 



[PA 



b. Hgr. (V. 165 ; 0. 39). Bissao. V. H! Cornish, Esq, 



c. Hgr. (V. 161 ; C. 44). Gold Coast. "W. F." Evans, Esq. 



[C.l. 



d. $ (V. 164; C. ?). Fantee. T. E.^Bowdich, Esq, 



[P.]._ (Type of 

 C. bicolor.) 

 e,f-l- <S (V. 164; C. Asaba, Niger. J. W. Crosse, Esq. 



54),S(V.160;C.41), [P.]. 



hgr. (V. 155,166; 0. 



38,33),&yg.(V.161, 



162,159; C. 44, 42, 40). 

 OT. $ (V.167;C. 42). Congo, 

 w-s. $ (V. 159; 0.39), Mkonumbi, E. Africa. Dr. J. W. Gregory 



hgr. (V. 164, 153, [P.]. 



146, 148 ; 0. 41, 50, 



46, 46), & yg. (V. 



164; 0.52). 



