Low incidence of R. s. simus on cattle is not universal. It 

 is not only conmon but niimerous on cattle on the coastal plains 

 of Kenya (Dick and Lewis 19A-7). 



Do£S: Throughout the range of R. s. simus ^ domestic dogs 

 are frequently among its most common"~ho'sts and are mentioned by 

 many authors. In Equatoria Province, dogs are infested by this 

 parasite as frequently as they are by R. s. sanguineus , but the 

 numbers of siraus are considerably lower in all collections 

 except those from Kajo Kaji. The yellow dog-tick, H. 1. leachii, 

 is much less common on dogs in the Sudan but in certain other 

 areas of Africa this is one of their most important arthropod 

 parasites. Kauntze (193A) and Roberts (1935) did not consider 

 R. s. simus to be an important pest of dogs when studying bouton- 

 neu"se fever in Kenya, but Dick and Lewis (194-7) found this common 

 tick to be only slightly less nvmerous on dogs than R. s. sangui - 

 neus in the coastal area of Kenya. At Nelspruit, South~Africa, 

 Lounsbixry (190^A) collected more glossy ticks than kennel ticks 

 on canines in the same place. According to Theiler (correspondence), 

 R. s. simus and H. 1. leachii generally are more common on South 

 IfrTcan dogs than il R. s. sanguineus, and H. 1. leachii is usual- 

 ly the most common of the three. Matthysse (l^5A) listed R. s. 

 sinus only once from Northern Rhodesian dogs, and noted R. appen- . 

 dicixlatus , R. _s. sanguineus , and R. tricuspis more frequently. 



Pigs ; Wherever I have encountered domestic pigs in the range 

 of the glossy tick, a close association between the two and a high 

 rate of infestation has been noted. No mention of similar situations 

 is found in the literature. Wild warthogs and bushpigs (see below) 

 are commonly infested. In South Africa, on the other hand, domestic 

 pigs are amazingly free of ticks and more are recorded from bushpigs 

 than from warthogs (Theiler, correspondence). 



Tendeiro's reports from Portugese Giiinea (listed above) contain 

 numerous references to R. _s. simus and R. _s. senegalensis on domes- 

 tic pigs. The identity""of West African specimens should be checked. 



Other domestic animals are more or less frequently reported as 

 hosts, but the incidence is seldom if ever mentioned. In addition 

 to the Sudan records given above, some of these are: 



Cat (Jack 1921,1942). 



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