C. Warburton 
9 
punctations on the scapulae, but the area immediately in front of the 
eyes is glossy and devoid of punctations as in the (f. In exceptional 
specimens the lateral punctations of the median field are so emphasized 
as almost to amount to a lateral groove. Spiracle short-oval, with only 
a slight dorsal projection. 
This species bears a superficial resemblance to R. wppendiculatus, 
but the shape of the basis capituli and of the anal plates in the cT and 
the absence of lateral grooves in the $ are sufficient to differentiate 
it from that form. It seems to be more nearly allied to R. kocJti 
and R. cuneatus. 
Fig. 3. R. neaveu n. sp. ? . Dorsal view of capitulum and scutum, and spiracle. 
Original, C. W. 
Described from a large number of specimens taken in N. E. Rhodesia 
from the “bush-pig,” eland, “bush-buck,” “impala,” kudu and man; 
in Nyasaland from the roan antelope, “ bush-buck,” “ wart-hog,” Lepus 
spp., cattle and grass; in British East Africa from the goat and the 
buffalo. The specimens which appeared most characteristic and were 
selected as types were taken by Mr S. A. Neave from an eland near the 
mouth of the Tasangazi R., Luang we Valley, N. E. Rhodesia [E. R. C. 
No. 168]. Types at British Museum and Cambridge. 
Specimens of this tick were sent to Geheimrath W. Donitz who 
agrees that it is a form unknown to him. The presence of a lateral 
groove in the and its absence in the $ caused him to suspect that 
they belonged to different species, but not only do they constantly occur 
together, but the strong line of punctations which are the true repre¬ 
sentatives in male ticks of the female lateral groove is here absent. 
