LEUCOCYTOZOON. 241 



hsematoxylin. The nucleus of the host-cell is attached to one 

 side of the parasite, giving it a bean- shaped form. The 

 parasite is really ovoid, as can be seen in free forms or where 

 the nucelus of the host-cell is still central. In many cases 

 one or both poles of the host-cell are lost, and it appears to 

 be represented only by its nucleus. 



Habitat. — Blood or smears from the lungs of Coracias 

 benghalensis benghnlensis (Linn.) : Portuguese India, Corhm. 



199. Leucocytozoon enriquesi de Mello. 



jLeucocytozoon enriquesi, de Mello, 1937 a, p. 106. 



Form round. Differs from the preceding species in the 

 nucleus being roundish, ovoid or sausage- shaped and always 

 well stained in the female gametocyte ; and in the nucleus 

 being very large, circular, and occupying the greater part of 

 the bod}'", and stained pale rose, dust-like and with a more 

 deeply staining body, in the male gametocyte. 



Habitat. — Blood of Ghloropsis jerdoni Blyth : Portuguese 

 India. 



200. Leucocytozoon (?) melloi, sp. nov. (Fig. 121.) 



•\Leucocytozoon (?) sp., "type B," de Mello & Afonso, 1935 b, 

 pp. 72-3, pi. ii ; de Mello, 1937 a, p. 105. 



Form of the adult gametocyte spherical, attached to the 

 nuclear substance of the host- cell, the rest of the cell not to be 

 seen. Cytoplasm compact, stained deep blue by Romanowsky 

 stains, and much darker than L. coracise by iron haematoxylin ; 



Fig. 121. — Leucocytozoon (?) melloi, sp. nov. 



A, B, forms with nucleus of the host-cell attached ; G, free form. 

 (After de Mello and Afonso.) 



containing small or large vacuoles, which do not take the 

 stain. Only one type of gametocyte recognizable, with 

 a nucleus containing a karyosome. 



Remarks. — Forms are of different sizes, the free ones being 

 absolutely spherical, and not ovoid as in L. coracise from the 

 same host. The relationship of the nucleus of the host- cell 



SPOR. R 



