340 COLUBEIDiE. 



B. Dark purplish brown above and below, lateral scales and vcntrals 



with a whitish edge ; throat white. 



f. (S (V. 176 ; 0. 37). Duc^ue de Bragance, Prof. Barboza du Bocage 



Angola. [PJ- 



g. d (V. 182 ; 0. 45). Nyaasaland. H. H. Johnston, Esq. [P.]. 



C. Dark grey above, the scales edged with blackish ; two series of 



black spots along the back, the anterior confluent into cross 

 bars ; throat white ; ventrals and , subcaudals blackish brown 

 edged with whitish. (Var. miiltimaeulata, Boettg.) 



/(. d (V. 175 ; C. 34). Congo. 



6. LycopMdium jacksoni. (Plate XXI. fig. 3.) 



Diameter of the eye not greater than its distance from the mouth. 

 Kostral twice as broad as deep, visible from above ; internasals 

 about as large as the nasals ; prajfrontals a little longer than broad ; 

 frontal a little longer than broad, as long as its distance from the 

 rostral, much shorter than the parietals ; loreal longer than deep ; 

 praeocular as large as the supraocular, broadly in contact with the 

 frontal ; two postooulars, both in contact with the parietal ; tem- 

 porals 1+2; eight upper labials, third, fourth, and fifth entering 

 the eye ; chin-shields very small, the anterior in contact with four 

 lower labials. Scales in 17 rows. Ventrals 164-189 ; anal entire ; 

 subcaudals 28-33. Olive-grey above and beneath, the scales with 

 or without whitish dots. 



Total length 550 millim. ; tail 55. 



East Africa. 



a. 2 (V. 189; C. 33). Kilimanjaro. F. J. Jackson, Esq. [P.]. 



i. $ (V. 164; 0.28). Lamu,E. coast of Africa, F.J. Jackson, Esq. [P.J. 

 N. of Zanzibar. 



7. LycopMdium irroratum. 



Coluber irroratus, Leach, in Boiodich, Miss. Ashantee, p. 494 (1819). 

 Hypsirhina maura. Gray, Zool. Miscell. p. 67 (18421. 

 Metoporhina irrorata, Giinth. Cat. p. 198 (1858). 

 Lycophidium irroratum, part., Ounth. Ann. ^ Mag. N. H. (4_) i. 

 ]868, p. 426. 



nigromaculatus, Jan, Icon. O&n. 36, pi. iii. fig. 5 (1870). 



guttatus, Jan, I. c. lig. 6. 



Diameter of the eye greater than its distance from the mouth. 

 Rostral twice as broad as deep, visible from above; internasals 

 hardly as large as the nasals ; praefrontals a little longer than broad ; 

 frontal as long as broad or a little longer, shorter than its distance 

 from the end of the snout, which nearly equals the length of the 

 parietals ; loreal long?,r than deep ; praeocular nearly as large as or 

 larger than the supraocular, broadly in contact with the frontal ; 

 two postoculars, both in contact with the parietal ; temporals 1 -|- 2 ; 

 eight upper labials, third, fourth, and fifth entering the eye, seventh 



