KEPORT OF TEAVELLIXG PATHOLOGIST 199 



Centrosome, which is rod shaped, to end, 4/;. 

 Corpuscles, lO/i to 12/j X 6 to 7/i. 

 I am unable to identify this with any trypanosome already found. 



FiLARI.E 



The Fihtricv here described are all embryos and were found after staining the blood for 

 trypanosomes, the discovery of which was my main object in making these slides. 



In Laninx excnhitor'nut only I searched for the parent worm, having seen embryos in 

 the fresh blood, but failed to find them. 



None of the six embryos here described appear to have been previously found, though 

 two of them somewhat resemble others mentioned below. It would appear that there are an 

 euunnous variety of unstudied Filuria- in birds in all climates. 



Plate XIX., /'. In several specimens of guinea-fowl blood {Xuinida ptilorhyncha) a Guinea-fowl 

 Filarid was found in quantity, 8U to lOO^i lung, and ibfi broad, having the appearance of a disc 

 necklace, or artificial serpent, as sold for a toy (Plate XIX., h), the granulations being 

 arranged in disc-like sections which project on each side with great regularity. 



These Filaria: are often arranged somewhat in a circle, and not as in the illustration 

 (which was chosen as a specially fine specimen) ; they taper at the tail end to a fine extremity, 

 while at the head the taper is much less, and the end bluntly rounded. There is a 

 translucent spot at this end, and the stained cell nuclei finish in this spot in two divisions 

 after bifurcation. There is no sheath, but there is a highly refractile translucent containing 

 membrane. There are four spots, two of which only are constant. Tliis Filari<( much 

 resembles the description of F. calalfai-eiimix in the report of the expedition to Nigeria by the 

 Liverpool School of Medicine, except for the regularity of the granulation. 



Spot 1, at '24'3 per cent, of length . . . . . . Often absent. 



Spot 2, at 33-4 ,, . . . . . . Constant. 



Spot 3, at 59-3 ,, . . . . . . Constant. 



Spot 4, at 80-5 „ Often absent. 



Plate XIX., (/. Another /V/ff/wV/ in the same slides has the tail end tapered and pointed, 

 while the head end is slightly tapered but bluntly rounded. It has a sheath nearly double 

 the length of the filaria. In the stained specimen the head is pushed to the furthest 

 extremity of the sheath, the excess of which trails behind. The sheath stains a deep red 

 colour, making the protoplasm withiu look purple. As a rule the Fihirin lies fauiy straight, 

 without much undulation. It has a containing membrane, the contents of wliich appear to be 

 segmented at the tail end and granular at the head end. 



The length is from 48 to 85 fi by 38 fx. There are five spots of which three are 

 constant. At the head end there are two clear spaces, the more anterior of which is at the 

 extreme end, communicating with the other by a narrow channel between two sides formed 

 by the splitting of the mass of the cell nuclei. This is probably an embryo which has not 

 been previously described. 



Spot 1, at 11 '2 per cent, of length . . . . . . Often absent. 



Spot 2, at 341 „ Constant. 



Spot 3, at 539 „ . . . . . . Constant. 



Spot 4, at 77-3 „ Constant. 



Spot 5, at 90-5 „ Often absent. 



