VKTEKINARY NOTES 351 



It is scarcely worth while giving the (liniensioiis of these areas, as I find they vary 

 in size and also in appearance. They appear, however, to be constant in occurrence 

 and in position. There is also what may be called a clear area at the caudal end, for 

 the column of cell nuclei terminates some little way from the tail tip in all the specimens 

 examined. In one specimen I have also seen a tiny central gap between number four 

 and the end of the column of cell nuclei. These latter are not nearly so distinct as in 

 the micro-lilaria of the horse, the general aspect being more homogeneous, but this may 

 merely be a staining effect. With high powers, the annulations of the cuticle, seen in the 

 case of the horse parasite, are not visible. I have had no opportunity of staining by any 

 of the special methods, so cannot enter more fully into anatomical details. The blood 

 showed a very marked leucocytosis, the increase being chiefly in the large lymphocytes. 

 I append a differential count of 500 cells. 



Eosinophile.5 



Polymorphs 



Large Moaonucleavs 



Large Lymphocrtes 



Small Lymphocyte.'i 



Transitional-^ 



not found 



A few normoblasts were present. 



I did not succeed in obtaining the adult nematodes which very probably have their The adult form 

 habitat in the testicles. It would be interesting to know if this is the niicro-filaria found by 

 Mason in Egypt, and also to determine the carrier. The most common ecto-parasites 

 of the camel are llippoliosca caineUna and H. inacnlata. Lijnchia exornata has also been 

 taken on a camel, but this was probably accidental. 



Amongst ticks may be mentioned Hi/aJoiiiina xgypfinm, Amhlyomma variegation and 

 lihipicephalus sangnineHs. Mr. King informs me that, in the Eed Sea Province, the 

 following diptera bite camels : Siomoxys sp., ! Lyperosia, lainnia, Tabaims fiifis and three 

 new and undeseribed species of Tahanidm, and Pangonia riippellii. It is, of course, probable 

 that mosquitoes also suck the blood of camels in this region and that they are the 

 vectors. 



I suggest the provisional name of ^[^n•o-filnl•la cnmelen!^/!' for this larval nematode 

 of camels whicli seems to be of eonsideral)le economic importance. 



In the H.\ee 



In May, 1910, I shot a hare at Jebelein, on the White Nile, which, Mr. Butler 

 informs me, was in all probability Lep».< hawkeri. In its blood I found micro-filarise 

 present in considerable numbers. The parasite is smaller than either of the foregoing, 

 being about 95/.1 in length. Fig. .3 on Plate XVII. shows its general appearance when stained 

 by the Leishman method. There is a clear area O/x in length at the cephalic extremity, two 

 lateral bays, one 40^ from the anterior end, the other 10^ from the rounded tip of the 

 blunt tail. In addition, there is a central clear area reaching across the whole, or 

 nearly the whole, of the body breadth and situated about 60^ from the anterior end. 

 In some, no clear area is visible at the rounded cephalic extremity, while others have a 



