On six new species of Ixodidae, etc. 
457 
On six new species of Ixodidae, including a second species 
of the new genus Rhipicentor N. and W. By W. F. Cooper, B.A. 
Cantab, F.Z.S., F.L.S., and L. E. Robinson, A.R.C.Sc. Lond. 
From the Cooper Laboratory for Economic Research, Watford, 
Herts. 
[. Received 15 February 1908.] 
This communication is a continuation of the descriptions of 
new species by Prof. G. H. F. Nuttall and Mr Cecil Warburton, 
published in the last issue of these Proceedings 1 , and comprises 
hitherto undescribed ticks which the authors have encountered 
during their work on the Ixodidae in collaboration with the 
aforementioned. 
List of New Species. 
1. Amblyomma longirostrwn ( $ ). 
2. Amblyomma caelaturum ( f and $ ). 
3. Rhipicentor nuttalli ( f). 
4. Aponomma javanense ( $ ). 
5. Aponomma simplex (f). 
6. Aponomma quadratum (</). 
The authors use the same system of nomenclature and 
abbreviations as that given in the paper referred to above 
(pp. 392, 393). 
Amblyomma longirostrum sp. n. 
Figures 1 — 5. 
Male, unknown. 
Female (unfed), L. 4‘9 mm., W. 43 mm. Body (Fig. 1) oval, 
Fig. 1. Amblyomma longirostrum ? , dorsal aspect. 
1 Proc. Cainb. Phil. Soc. Vol. xiv. Pt. iv. pp. 392 — 41G. 
