REPORT OF TRAVELLING PATHOLOGIST 197 



It would appe;ir to consist of u slieath pointed at each end whicli contains protoplasm 

 segmented into two or more portions. 



In reference to the Halfcridiinn found in this bird, the development of the parasite is 

 but small, and the number of corpuscles affected scanty, and it has occurred to me that the 

 appearance may after all not be Hnltcridium but the commencement of the growth of this 

 ITa'mamceba, though the simultaneous occurrence of H. zicmciiiii and ffirltcriiUum has been 

 previously reported. 



Trypaxosomes 



Plate XVIII. d. Trypanosomes found in the Noke [MikjU) fish, measure on Noke fish 

 an average : — 



Length, 50/i. Greatest breadth, 4/i. 



Length of flag, Ti/i 



Nucleus, -i/i in diameter. 



Centrosome, 5/* from end. 



Corpuscles 12 to 13fi. 

 This fish has a gizzard and is a species of gray mullet. 



Trypanosomes were found in the dabib (Poh/pfenis) fish when examining the 

 imstained blood on three occasions, but no stained specimen was secured. Dr. A. Laveran 

 informed me that this was not an unusual occurrence* owing to the parasite being rolled 

 up and hidden by the corpuscles. 



Plate XVIII. a. The trypanosome found in the bagara fish {Baijeiis hayard) Bagara fish 

 measures : — 



Length, 51 to 58^( on an average. Greatest breadth 5/ii. 



Length of flagelhim, 8^. 



Nucleus, 3/i in diameter. 



Centrosome from end, '2n. 



Corpuscles, 9 to l"2/i X O'o to 6'5/<. 

 Plate XVIII. b. The trypanosomes found in the gargur fish {Lt/iiodunfis .^cli'd) cargur fish 

 measure on an average : — 



Length, 24 to 43fi. Greatest breadth, 2-5yu X 4^. 



Length of flagellum, 8 to lO^i. 



Nucleus, 2^1 X 3fi. 



Centrosome, from end, "5/i. 



Corpuscles, 11 to 12^ X 6 to 7fi. 

 Plate XXI. a. In the blood of the karesh fish {Monni/i-ns) a deeply stained organism Karesh fish 

 was found, measuring 70^ in greatest diameter, and resembling some protoziion ; (tbraminifera ?) 

 It is nearly circular and its protoplasm arranged in a vortex-like depression, has a circle 

 of cilia. It is probably a contamination from the gills, or the alimentary canal. The 

 organism is plentiful, and from the way the fish was treated I think it highly unlikely 

 that anything off the scales could have got into the blood. It is more likely a parasite of 

 the gills and as trypanosomes have been found by scraping these with a spatula, it is worthy 



* Since m-iting the above I find Novy and McNeal report this as also their experience. They tell of a canary 

 examined for 11 days in succession, when trypanosomes were found in the fresh blood and none iu the stained 

 and on its death 7 slide films were examined iu vain for 20 hours, though the heart's blood revealed them 

 in quantity. 



