250 



SPOEOZOA. 



212. Proteosoma chloropsidis (de Mello). (Fig. 128.) 



■^Plasmodium prsscox, Scott, 1926, p. 237 ; Wenyon, 1926, p. 1369. 

 ^Plasmodium chloropsidis, de Mello, 1935 a, pp. 354-5, pi. xliii, fig. 1. 

 Plasm.odium, prsecox, Coatney & Roudabush, 1936, p. 342; de Mello, 

 1937 a, p. 98. 



Young trophozoites ring-shaped, resembhng those of 

 Laverania malariee. Larger trophozoites in the form of big 

 rings with brownish pigment granules. Rosettes with (or 

 without) pigment, situated generally on the periphery of the 

 red cell, with varying number (6 to 11) of merozoites. Male 

 gametocytes oval, with large, irregular nucleus. Female 

 gametocytes roundish, generally stained deeply blue, with 

 round or oval nucleus. Infected red corpuscles not altered. 



Remarks. — De Mello beheves that the form is the same as 

 that registered as P. preecox, from the same host, by Scott and 

 Wenyon. He, however, regards it as a distinct species, differ- 

 ing from true P. prsecox in the irregular number of merozoites 

 formed during schizogony, and in the compact structure of 



B 



E 



Fig. 128. 



-Proteosoma chloropsidis (de Mello). A, ring-form; B, full- 

 giown trophozoite ; C, rosettes ; D, raale gametocyte ; 

 E, F, female gametocytes. (After de Mello.) 



the nucleus of the merozoites, which contrasts with the ring- 

 shaped nucleus of the merozoites in P. prsecox. 



Habitat. — Blood of the golden-headed chloropsis, Chloropsis 

 aurifrons Temm., from India, in the Zoological Gardens, 

 London ; also blood of Chloropsis aurifrons davidsoni Stuart 

 Baker : Portuguese India, Mardol (Ponda). 



213. Proteosoma columbse (Carini). 



Plasmodium columbas, Carini, 1912 pp. 396-8. 

 Plasmodium sp., Ed. & Et. Sergent, 1904, pp. 132-3. 

 •\Hsemoproteus columhae, de Mello & de Sa, 1916, pp. 731-4; de 

 Mello, de Sa, de Sousa, Dias, & Noronha, 1917, pp. 8-9. 

 Plasmodium columbse, Coatney & Roudabush, 1936, p. 339. 



Schizogony said to take place in the plasma of the blood 

 in the lung. Merozoites are seen in red blood- corpuscles as 

 small irregular bodies with cytoplasm and nucleus. The 



