HOSTS 



Warthogs, Phacochoerus aethiopicus subsp. (Neumann 1906,1911, 

 and Svidan records above J. Aard-vark, Orycteropus afer senegalensis 

 (Rousselot 1951,1953B, Tendeiro 1952C). 



BIOLOGY 



It seems strange that this large tick from much-hunted wart- 

 hogs shoxild not have been more often reported from West Africa, 

 though misidentification of specimens may account for this situa- 

 tion. 



DISEASE RELATIONS 



Ten of the above-mentioned Sudanese female specimens were 

 inoculated into mice and guineapigs in the Cairo laboratories 

 of Naval Medical Research Unit No. 3, for attempted isolation 

 of viruses or rickettsiae. The host animals produced no sign 

 of infection. 



It is claimed that specimens naturally infected with Q 

 fever (Goxiella burnetii) occxir in Portugese Guinea. 



REMARKS 



It was impossible to identify with certainty the Sudan spec- 

 imens and some were sent to Dr. Theiler. She had received sim- 

 ilar material from French West Africa (noted above) and fotmd 

 that it corresponded to Neumann* s (1906) description of R. cus - 

 pidatTis but differed markedly from Zumpt's (1950A) interpreta- 

 tion of this species. Thereupon she sent the French West 

 Africa specimens to Dr. D. R. Arthur for comparison with the 

 R. cuspidatus type specimens in the British Museum (Natural 

 IRi story ^. He found these to be the same. What the tick reported 

 by Zumpt (loc . cit .) as R. cuspidatus should be called is not 

 known. 



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