A more comprehensive morphological, taxonoraic, and biological 

 study of this group is indicated, large series of specimens from 

 many areas are required to solve these problems, which are outside 

 the scope of the present work. In the known Sudan tick fauna, R. 

 kochi is easily distinguished. The remarks below are only for "" 

 local use and are not sufficiently detailed for differentiation 

 of material from elsewhere in Africa. The Sudan material noted 

 herein was identified by Dr. G. Theiler. Miss J. Walker is now 

 reviewing this group. 



Four specimens, identified as H. kochi by E. A. Lewis, were 

 found by Moreau (1933) in the stomach of a tick bird in Tanganyika. 

 I have examined these specimens, in the collections of British 

 Musevun (Natural History), but cannot identify them to species. 



IDENTIFICATION 



Males ; Lateral grooves are replaced by a line of almost con- 

 tinuous punctations, the posteromedian groove is merely a fine, 

 shagreened line, and the paramedian grooves are indicated by sha_ 

 greening only. A blunt dorsal hump of coxa I is present. Scutal 

 punctations are nximerous, close or contiguous, mostly moderate 



There has been some difference of opinion among specialists 

 over which of the synonymous names, attenuatus or masseyi has pri- 

 ority. The background is as follows : Ne\imann • s name at£enuatus 

 was published on 20 March, 1908. Although Nuttall and Warburton*s 

 name masseyi was read orally at a scientific meeting on 28 December 

 1907, it was actually published on 10 March 1908. Therefore, ac- 

 cording to Opinion 15 (July 1910) of the International Code of 

 Zoological Nomenclatiire (reconfirmed at the Paris conference, 19A-8), 

 in which it is stated that, '*The mention of the new name in a paper 

 presented orally before a meeting of any kind" does not constitute 

 publication, the question is decided definitely in favor of the 

 name masseyi , which was published ten days earlier than attenuatus . 

 Authority for the publication dates of these two papers is the 

 Index-Catalogue of Medical and Veterinary Zoology, part II, pages 

 3539 and 3627 (1950). Some workers consider that the Nuttall and 

 Warburton paper was published in May 1908, which, if true, would 

 reverse the prior name of this tick. 



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