C. Warburton 
120 
Capitulum: Even more Aponomma-\ike than in the type; basis 
bluntly salient at the sides, almost destitute of cornua; porose areas 
large, sub-circular, bounded externally and anteriorly by sub-rectilinear 
ridges, the interval about equal to their diameter; palps long and 
narrow, their outer border straight and not convex as in the type; 
article 1 well visible; articles 2 and 3 not distinctly separated, article 2 
corrugated dorsally, and without any trace of lateral salience ; hypostorne 
spatulate, dentition 3 3. 
Venter : Spiracle ovate, the narrow end postero-dorsal ; anal groove 
semicircular. 
Fig. 8. II. inermis var. aponommoid.es ? , capitulum and scutum, profile of palp, 
coxae, spiracle and anus. (N. Cunliffe, del.) 
Legs: As in the type; coxa I without definite spine, but with 
its internal end truncated and the corners slightly protuberant; 
coxae II-IV with a slight protuberance in the middle of the posterior 
border; tarsus IV rather long and tapering (as in H. howletti $, see 
Fig. 3). 
Described from numerous $ s taken by Colonel F. Raymond, 
F.R.C.V.S., from a Himalayan Zebu at Belgachia, Calcutta, nr. 1912, in 
company with Boophilus australis. 
Types in the Quick Laboratory, Cambridge (N. 1566). 
II. inermis, Birula, 1895, has always been considered the most 
aberrant form of Haemapliysalis, and its attribution to that genus would 
be extremely doubtful were it not for such intermediate forms as 
