CHLOROMYXUM. 335 



277. Ceratomyxa hilsae Chakravarty. 



"fCertaomyxa hilsas, Chakravarty, 1938. 



Trophozoites in large numbers in the gall-bladder of the 

 host. Disporous, spores often seen lying side by side in a com- 

 mon envelope. Spores elliptical, valves tapering to blunt 

 ends, sutural plane prominent, diAdding the spore into equal 

 parts. Extra-capsular cavity filled with finely granular 

 sporoplasm. Polar capsules spherical, of equal sixe, provided 

 with well-marked coiled polar filaments. 



Dimensions. — Spores 30-40 ju, in breadth, 10 /x in sutural 

 diameter ; polar capsules S^u. in diameter ; polar filament 

 35^0 fx. 



Bemarks. — The above description is based on Chakravarty's 

 paper in manuscript. 



Habitat. — Gall-bladder of Hilsa ilisha (Ham.-Buch.) : 

 Bengal, Calcutta. 



II. Suborder SPH^ROSPOREA Kudo, 1920, 

 emend. 



Spore spherical, with one, two or four polar capsules. 

 Sporoplasm without iodinophilous vacuole. Vegetative form 

 found in body-cavity and tissues. Monosporous, disporous 

 or polysporous. Parasites of marine and freshwater Fish 

 and Amphibia. 



Identification Table of Families. 



1. With foTir polar capsules ChloromyxidSB Thelohan, 



[p. 335. 



2. With two polar capsules Sphserosporidse Davis, 



[p. 336. 



3. With one polar capsule Unicapsulidse * Kudo. 



1. Family CHLOROMYXIDiE Thelohan, 1892. 



Spore with four polar capsules. Monosporous, disporous 

 or polysporous. 



Genus CHLOROMYXUM Mingazzini, 1890. 



Chloromyxum, Mingazzini, 1890, p. 160 ; Labbe, 1899, pp. 94-6 ; 

 Minchin, 1903, p. 295 ; 1912, p. 409 ; Kudo, 1920, pp. 87-99 ; 

 Wenyon, 1926, p. 726; Reichenow, 1929, pp. 1058-9; Kudo, 

 1931, p. 308 ; 1933, pp. 197, 202-3 ; Calkins, 1933, p. 568 ; 

 Ray, 1933, p. 259 ; Reichenow, 1935, p. 386. 



Spore with four polar capsules, grouped at the anterior end ; 

 surface often striated or with ridges ; sutural Une often obscure. 

 Monosporous, disporous or polysporous. Histozoic, or coelo- 

 zoic in freshwater and marine Fish and also in Amphibians. 



