952 ON THE OPHIDIAN GENUS GRAYIA. [DeC. 14. 



four to six lower labials in contact with the anterior chin-shields, 

 which are as long as or a little shorter than the posterior. Scales 

 in 15 rows on the body, in 4 rows on the greater part of the tail. 

 Ventrals 130-143*; anal divided; subcaudals 100-128. 



Young blackish above, with narrow white bars which are veiy 

 distinct on the anterior half of the body and generally disappear 

 further back ; upper lip and lower parts white, the labial shields 

 with black bars on the sutures, the ventral shields with a small 

 black spot on the outer end. Only three of the light bars, 

 bordered by black spots, are seen in the half-grown, and they 

 may vanish completely in the adult, which is olive, with small 

 black spots on the sides, and light outer edges to the scales ; the 

 black bars on the upper labials are very pronounced, and that 

 between the last two extends upwards on the temporals. 



The two type specimens are described as from the French 

 Congo. A young specimen, type of G. fasciata, is from the 

 south-west of Lake Tanganyika. The three following specimens 

 are preserved in the British Museum. The largest measures 

 1200 millim. ; tail 490 : 



1. Hgr. S. V. 135 ; C. ? Entebbe, Uganda. Siv H. H. Johnston (P.). 



2. ?. V. 143; cm. Polkom, Earo R., Mr. P. C. Zaphiro (C.) ; W. N. 



(Sobat). MacMillan, Esq. (P.). 



3. $. V. 134;C. ? Barboi, White Nile. Dr. Wenyon (C.) ; Dr. F. 



Werner (P.). 



170, given by Werner, is probably a lapsus or misprint. 



