201. APARALLACTUS. 257 



Diameter of eye greater than its distance from the oral margin. 

 Rostral broader than deep, the portion visible from above half as 

 long as its distance from the frontal ; internasals much shorter 

 than the prsefrontals ; frontal once and a half as long as broad, 

 much longer than its distance from the end of the snout, slightly- 

 shorter than the parietals ; nasal entire, in contact with the 

 prsBocular ; two postoculars, in contact with the anterior temporal ; 

 temporals 1 + 1 ; seven upper labials, third and fourth entering the 

 eye ; first lower labial in contact with its fellow behind the 

 symphysial ; two pairs of chin-shields, subequal in length, the 

 anterior broader and in contact with three lower labials. Scales in 

 15 rows. Ventrals 142 ; anal entire ; subcaudals 36. Pale 

 reddish brown above, with a black vertebral line ; upper surface of 

 head and nape black, the nuchal blotch edged with yellow and 

 extending to the sides of the neck ; a pair of yellow spots behind 

 the parietal shields ; sides of head yeUow, the shields bordering the 

 eye black ; lower parts uniform yellowish. 



Total length 180 millim. ; tail 30. 



East Africa. 



a. Hgr. 5 (V. 142 ; C. 36). Foot of Mt. Kiliman- F. J. Jackson, Esq. 



jaio. [P-]- (Type-) 



2. Aparallactus werneri. (Plate XI. fig. 1.) 

 Aparallactus werneri, Bouleng. Ann. §• Mag. N. S. (6) xvi. 1895, 

 p. 172. 



Diameter of eye greater than its distance from the oral margin. 

 Eostral twice as broad as deep, the portion visible from above nearly 

 halt as long as its distance from the frontal ; internasals much 

 shorter than the prefrontals ; frontal once and a half as long as 

 broad, longer than its distance from the end of the snout, as long as 

 the parietals ; nasal entire, in contact with the pra;ocular ; two 

 postoculars, in contact with the anterior temporal ; temporals 1 + 1 ; 

 six upper labials, second and third entering the eye ; first lower 

 labial in contact with its fellow behind the symphysial ; two pairs 

 of chin-shields, the anterior broader and a little longer and m 

 contact with three lower labials. Scales in 15 rows. Ventrals 

 147-160 ; anal entire ; subcaudals 32-41. Blackish above, with 

 a deep black, somewhat light-edged nuchal collar; upper lip 

 blackish below the eye, yeHowish in front and behind ; lower parts 

 uniform yellowish. 



Total length 390 miUim. ; tail 65. 



East Africa. 

 a-h 3 rV. 147 ; 0. 41) & Usambara. Dr F. Werner [E.]. 



$ (V. 160 ; 0. 32). (Types.) 



3. Aparallactus concolor. 



Urieohis concolor, Fischer, Jahrh. Hamb Wus. An^. i. 1884, p. 4, 

 pi. i. fig. 1 ; Giinth. Ann. ^ Mag. N. if. (6) i. 1888, p. 325. 

 VOL. ru. ^ 



