54 



ANUrAI. TUVI'ANOSOMIASKS IN THK AN(1I,0-H(; VrTl AN SlUAN 



Tiii/i:tiias,i,i,,i /Hi-iini III or iiiiiiiiiii (and ii'mo' ?' -HALFOL'U'S 

 I'KYPANOSOMH OF (K)ATS^ 



rrnpiiiwsomii /...,."." BALFUUU'S Tlii'i'ANOSOMK OF LANJXiN'S I'oNNI 



Kul.ruary 3. I'Jlll ...I Huisi; . Leisliiiiaii 12-fi 15-0 mo 



i 



MoilSlll'l'llR'llts 



Tnniiiiwsomi' ? BALFOUIt'S TKVI'A^"l)S^)^rl•: OF WENYON'S DOli by Colonel 



■ ' Sir David 



Bruce, 1910 



April 1. I'.HKi . 



Hoc 



Loisliinaii 



ii;-j 



18 -U 



ia-0 



Tniiiammmii ? BALFOUR'S TRYFANOSOME OF SHEEP (BAUR-EL-(iUA/AI,) 



— Sheep ... Hieishman Irfl 18'0 13U 



i III 



Witli lefui'oncu to these slides, in the first case where vivax is mentioned an occasional 

 trypaiiosome was found that varied from the general type of the infection, and this led 

 Colonel Sir David Bruce to conclude that there was the possibility of a mixed infection. 

 This type was not included in the drawing from which the measurements were made. 



With regard to the second slide, this pony came from Uganda where it was possibly 

 infected. 



W'itli regard to the dog and sherp slides Colonel Sir David J3ruco suj)plies tlic 

 following footnote : — 



" These tiypanosonies look very alike. They are most closely related to Tii/jiiiiiononia 

 pfciirum, but are larger. It may be a new species but would require to be studied further 

 in different animals before an opinion could be given." 



It may be stated that the Wenyon dog strain was originally derived from a heifer 

 on the Sobat, and it ap})ears probable that this nionomorphic strain is quite distinct from 

 the so-called diiiioi phic T. minutn. w'hich the same observer found in iiiulfs in tlic 

 Bahr-Kl-Ghazal. 



With regard to the other dimensions the descriptions given below apply in general 

 to all the above specimens. 



Breadth. The average breadth is from 1 to 2 microns. 



Cytoplasm. Generally clear and staining a light blue in some specimens ; well-marked 

 granules are apparent. 



Xiiclens. Oval in shape and is situated somewhere about tln^ centre of the body. 



MirriiiinclpiiK. Small and round and situated near and oftcMi apparently at the 

 posterior extremity. 



Undulatorij membrane. Fairly well developed. 



F'tnoellnm. An mentiomil on tlic ])rc'vi()iis ])age there is no free flagelhmi. or if there 

 is, it is (!Xtromely short. 



As a matter of comjini is<iii one mijibt refer the leader to the original 7'. iuihiiih 

 measurements by Laveran and Balfour, as stated in the Second Report of these 



