340 COLUBRID.E. 



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



with a whitish edge ; throat white. 



f. (S {^- 176 ; C. 37). Duque de Bragance, Prof. Barboza du Bocage 



Angola. [P.]. 



r/. (S (V. 182; C. 45). Nyassaland. II. II. Johnston, E.^q. [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. multlmacvluta, Boettg.) 



h. S (V. 175; C. 34). Congo. 



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



Diameter of the ej-e not greater than its distance from the mouth. 

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

 about as large as the nasals ; praefrontals 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 ; 

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

 frontal; two postoculars, 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. 9 (V. 189 ; C. 33). Kilnnanjaro. F. J. Jackson, Esq. fP.]. 



b. 2 (^- 164; C. i>8). Lamii, E. coast of Africa, F. J. Jackson, Esq. [P.]. 



N. of Zanzibar. 



7. LycopMdium irroratum. 



C(i] liber irroratus, Leach, in Bowdich, Miss. Ashantee, p. 404 (1819). 

 Hypsirbina nmura, Gray, Zool. Miscell. p. 67 (1842). 

 Metoporliina irrorata, G'dnth. Cat. p. 198 (1858). 

 Lvcophidium irroratum, part., Giinth. Ann. ^- Mar/. N. II. (X) i. 

 "1868, p. 426. 



nigromaculatus, Jan, Icon. Gen. 36, pi. iii. fig. 5 (1870). 



guttatiis, Jan, I. c. fig. 0. 



Diameter of the eye greater than its distance fi'om the mouth, 

 llostral 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 ; prajocular 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 -f- 2 : 

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



