THE HAEMATOZOA OF AUSTRALIAN BIRDS. 433 



various spots were not distinctly recognisable in most 

 specimens, though in some from the latter host their loca- 

 tion appeared to be at about 30, 70 and 90 percentage of 

 the body length distant from the head end. (Figs. 52, 57, 

 58.) ' 



(11) Microfilaria sp. from a Pardalote, Pardalotus melano- 

 eephalus, Gould. (Dr. Bancroft, Eidsvold, April 1911.) 



Length 90 to 125/*, breadth 5*5 p. This parasite was 

 found in only one out of many birds of this species examined 

 by us. They were rather long and of an almost uniform 

 breadth, the tail end being only slightly narrowed. Each 

 extremity was broadly rounded. The " spots" were at 

 about 33, 60, and 90 per cent, of the body length. (Figs. 

 62, 63.) 



(12) Microfilaria sp. from the Blood Bird, Myzomela san- 

 guineolenta. Lath. (Dr. Bancroft, Eidsvold, June 1911.) 



Filarial embryos were detected in films from one out of 

 four forwarded recently by Dr. Bancroft. The same film 

 contained, in addition, both halteridia and intracorpuscular 

 trypanosomes. The filarise were relatively extremely long 

 and delicate, measuring 270/% or even more, in length, 

 while the breadth only reached 1*5 /*. The width was 

 uniform. Each end was bluntly rounded. The spots were 

 situated as indicated in fig. 75. A figure of a red corpuscle 

 (fig. 74) is shown for comparison. 



(13) Microfilaria sp. from Plectrorhamphus lanceolatus, 

 Gould. (Dr. Bancroft, Eidsvold, April 1911.) 



Length 40 to 57 /*, breadth about 5 /*. These embryos 

 were short thick forms with a blunt rounded anterior end, 

 and rapidly-tapering tail. They appear to belong to the 

 same species as the parasite found in Entomyza cyanotis. 

 The nerve ring lay at about the junction of the first and 

 second fourths of the worm. (Figs. 36, 37.) 



B I— Dec. 6, 1911. 



