C. Warburton 
15 
is present in the region between the cervical grooves and the lateral 
ridges. Dorsum strongly punctate and grooved (see Fig. 9). 
The short white hairs on the dorsum, especially along the marginal 
grooves, are extremely stout and thickly set. 
Described from 11 c/’s and .5 $s (E. R. C. No. 230 a) from roan 
antelope, Mpalali R., Marimba, Nyasaland (Old, l. 1911) in company 
with R. supertritus, H. aegyi^tmin and B. australis. 1 (E. R. C. No. 
227 a) from the same locality and host (Old, l. 1911) in company with 
numerous other species. 3 </s and 1 $ (No. 11.5 b) from zebra, 
S. Rukura Valley, N. Nyasaland (Neave, vi. 1910) in company with 
R. simus, R. capensis, R. sanguineus and ticks of other genera. Types 
at British Museum and Cambridge. 
R. appendiculatus, R. supertritus and R. sculptns are three form's 
closely allied and in certain structural points practically identical, but 
presenting Cjuite a different facies on account of their progressively 
complicated scutal sculpture in both sexes. 
Notes on some obscure species of Rhipicephalus. 
R. ecinctus Neumann, 1901 and R. maculatus Neumann, 1901. 
In his Revision de la Famille des Ixodides, Part iv, 1901, Neumann 
described R. macidatus and $ and R. ecinctus </. R. maculatus, 
curiously enough, was taken from a beetle, Platymeris horrida, in the 
Cameroons; R. ecinctus was described from specimens from an 
unknown source in the Berlin Museum. Later (“Notes sur les Ixodides,” 
VI. Arch, de Parasitol. 1908), Neumann recorded the occurrence of 
R. ecinctus on the buffalo at Mt. Njiro, British E. Africa, and described 
what he took to be its female. In the same tube were specimens of 
R. pulchellus, R. simus and R. oculatus. 
Through the great courtesy of the authorities of the Berlin Museum 
I have been able to examine the types of these species, and I have also 
recently received, through the Entomological Research Committee, 
further specimens which throw an unexpected light on the subject. 
The specimens in question are these: 
(1) 5 typical R. ecinctus cfs and 4 $ ticks unmistakeably belonging 
to them, taken (in company with R. supertritus and R. evertsi) from a 
buffalo in British E. Africa by Dr H. S. Stannus, l. 1911 (E. R. C. 
No. 193). 
