ARVICANTHIS NILOTICUS JEBELAE Heller, 1911. Southeastern Sudan 

 Kusu or Grass Rat. 



Large numbers of this rodent, possibly the most common one 

 in Torit and Juba Districts, yielded only a few nymphs of H. 1. 

 ? leachii and R. s. simus . However, burrows examined during tTie 

 dry season at""juEa and Torit were inhabited by fairly large 

 nvimbers of nymphs and recently molted, \mfed adults of the same 

 tick species. 



LEMNISCCMYS MACCULUS MACCULUS (Thomas and Wroughton, 1910). Striped 

 Grass Mouse. 



Four nymphal R. s. simus were taken from this uncommon mouse 

 at Torit. ~ 



LmMISCOMYS STRIATUS MASSAICUS (Pagenstecker, 1855). Masai Striped 

 Grass Mouse . 



The Masai striped grass mouse is exceedingly common in eastern 

 Bquatoria Province and many were examined. A small number of ira- 

 matures of R. s. simus were found on a few grass mice and in the 

 nests of otTiers. A nymphal H. acicTilifer was also taken on a 

 grass mouse at Torit. ~ 



MASTOMYS NATALENSIS laiAILIAE (Heller, 19U). Ismailia Multimammate 

 Rat. 



Two multimammate rats infested by a few nymphs of Ixodes 

 nairobiensis were foirnd at Torit and in Lotti Forest. This tick 

 was not found on other mammals in the Sudan. At Torit and Ikoto 

 two hosts yielded a few immatiu*e R. s. siraus. Over a hundred other 

 multimammate rats examined in Torit," Juba, and Eastern Districts 

 were free of ticks. 



PRACt-lYS TULLBERGI SUDAI\[EMSIS Setzer, 1956. Lotti Forest Soft-furred 



^i!at. 



This rat inhabits higher altitudes of Torit District. Four 

 specimens in Lotti Forest were infested by a few immature ticks 

 representing H. aciculifer , H. !• ?leachii , R. s. simus , and R. 

 ?arnoldi. No^ticks were found on twenty- two^otTier specimens in 

 Lotti Forest. 



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