424 J. B. CLELAND AND T. H. JOHNSTON. 



the deeper-coloured intracorpuscular bodies. In one speci- 

 men, the micronucleus seemed to be dividing. The intra- 

 corpuscular bodies were numerous in one bird, in which 

 there were seen also occasional halteridia. Both full-sized 

 dark and pale forms were present and also a number of much 

 smaller forms, the smallest being about a fourth of the size 

 of the largest. In the earliest form seen, the parasite was 

 at one pole of the red cell, and the host nucleus was not 

 yet distorted. The central macronucleus of the parasite 

 was present and there was no pigment. In a specimen a 

 little larger, the parasite was towards one end of the red 

 cell, and, in the protoplasm of the latter beside it, was a 

 small vacuole; beyond the vacuole, the host's protoplasm 

 showed a few scattered red dots. The nucleus of the host 

 cell was redder than in an uninjured cell, slightly enlarged, 

 not distorted but pressed to one side. In still larger para- 

 sites, the gradual embaying of the parasite in the nucleus 

 of the host-cell was traceable through all its stages, from 

 slight cupping onwards. In most of these young forms, 

 the host-cells were clearly recognisable as red cells, about 

 which there could be no mistake. In this film was also 

 seen an apparently free vermicular form, rather like a 

 hsemogregarine with one edge slightly curved ; the body 

 was about as long as the red cells and as broad as their 

 nuclei ; its nucleus was nearer one end of the parasite. 



Intracorpuscular Trypanosomes of Myzantha garrula 

 (M. 804). Four out of eight specimens of this bird from 

 Eidsvold, Queensland, showed intracorpuscular trypano- 

 somes. Two were obtained in February, one in December 

 and one in May. In two specimens, the parasites were 

 few, but in the other, a February bird, they were numerous. 

 The parasites were, in many cases, pale in colour ; two 

 large examples showed bodies like micronuclei in addition 

 to the macronuclei. 



