108 



were noted in the protoplasm. The length was about O'll 

 mm., and the maximum breadth 00045 mm. 



In films taken from another bird shot near Berry, New 

 South Wales, in August, 1910, a few microfilaria were 

 detected. These were much smaller than the above, being 

 only 0'045 mm. long by 0*004 mm. broad. The anterior end 

 was not appreciably narrowed, but appeared to be bluntly 

 rounded, whilst the other end gradually narrowed to termin- 

 ate in a pointed tail. The cuticle possessed fine annulations. 

 The body stained deeply and uniformly. 



Larval filaria (Microfilaria sp.) in the Blood of the 

 Raven (Corone australis). 

 In blood-films from a raven, Corone australis, shot 

 near Barraba, New South Wales, in December, 1909, and for 

 which we are indebted to Mr. A. R. MacCulloch, were found 

 larval filarise of about 0*09 mm. in length, by 0*0038 mm. in 

 breadth. Both ends of these were bluntly rounded, the pos- 

 terior being narrowed slightly. There was no sheath. The 

 cuticle possessed delicate annulations. The protoplasm was 

 finely granular and stained a deep-blue. 



Larval filari^e (Microfilaria sp.) in the Blood of the 

 Brush Wattle-bird (Anellobia chrysoptera, 

 Fam. Meliphagidce). 

 In July, 1907, Dr. T. L. Bancroft, of Brisbane, Queens- 

 land, was good enough to forward us blood-films from eleven 

 specimens of Anellobia chrysoptera, shot near Brisbane, and 

 accompanied this with a letter stating that in these films would 

 be found apparently two species of filaria and a trypanosome. 

 On examination we found that in four birds the two forms 

 of filaria were present, in three only the larger, and in four 

 none. Two of the birds harbouring both forms were also 

 found to possess trypanosomes. 



The two microfilarise, which appear to us to belong to 

 different species, have characters as follows : — 



(1). Larger Form. — The parasites were relatively largev 

 being from 0'16 mm. to 0*19 mm. long by 0'0045 

 mm. broad, with a blunt anterior end and a 

 gradually finely -pointed posterior end. There was 

 no sheath. The cuticle showed well-marked trans- 

 verse striations. The body cells stained pale-blue 

 with Giemsa, and were finely granular. The 

 anterior end remained almost unstained, except for 

 the presence of a few partly-isolated masses suc- 

 ceeded by a clear space. The V-spot was well 



