to a lesser extent, along the Sobat River and the Malakal-Juba 

 land track. Host_tick relationships in this Province are prob- 

 ably similar to those of the east bank of Eqiiatoria Province. 

 Some East African species not yet recorded from the Sudan may 

 occur near the Ethiopian border. 



As one travels northwards in this Province the big game 

 animsLLs of Africa gradually decreeise in numbers and disappear. 

 Er Renk is the northern boundary of the fine, lean, naked Nilotic 

 tribes of Negro Africa; further on the country is inhabited by 

 white- gowned Arabs of unique personal dignity and character, 



REPTILIA 



Cobras at Kenisa, Nasir, and Er Renk have been found in- 

 fested with A. latum while A. exomatum has been collected from 

 monitor lizards at Er Renk." 



AVBS 



R. s. sanguineus and R. s. siimis were taken fjrom lesser 

 bust€?ds~at Maoan. "" " 



MAMMALU 



BABOONS are infested by R. _s. simus . 



caiOUND SQUIRRELS at Bor were the source of H. houyi . 



A LION at Akobo Post was parasitized by single pairs of 

 R. simus, R. s. sanguineus , and H. 1. leachii and a LEOPARD 

 at Bor by a pair of R» s. simos .'" " 



Probable infestation of RHINOCiKOS is indicated by King's 

 specimens of A. rhinocerotis from grass near Bor. 



W&RTHOGS and WIII> PIGS shot near Duk Fadiat were hosts of 

 numerous A. variegatum and R. s. simus . 



Two BUFFALOS at Rom were infested by six male and four fa- 

 male A. lepidum (July). 



- 818- 



