307] STUDIES ON MYXOSPORJDIA— KUDO 69 



CERATOMYXA LINOSPORA Doflein 

 [Figs. 30 to 31] 

 1898 Ceralomyxa Unospora Doflein 1898 : 285 



Habitat: Gall-bladder of Labrus turdus; Napoli. 



Vegetative form: Club- or spindleshape. Protoplasm highly granu- 

 lated. Body whitish grey, though very transparent. Pseudopodia very 

 fine and only formed at the anterior end of the body. Size: 30 to 35jw by 

 16 to 18/x. Disporous. 



Spore: Form symmetrical with long thread-like lateral processes. In 

 sporoblast, the processes are wound around the spore. It is twice as long as 

 the breadth of the spore. Polar capsules large and spherical pyriform. 

 Dimensions: total breadth 50^, breadth of the main part of the spore 10 

 to 12fi, sutural diameter 5ju, length of lateral process 20/i. "Polar filament 

 was too fine to be measured." 



CERATOMYXA RAMOSA Awerinzew 



[Figs. 32 and 33] 



1907 Ceralomyxa ramosa Awerinzew 1907 : 831-834 



*1908 Ceralomyxa ramosa Awerinzew 1908 : 60-66 



Habitat: Gall-bladder oi Hippoglossus vulgaris Flemm.; Kjellebjord, 

 Murman coast. 



Vegetative form: Form irregular ameboid, owing to the presence of 

 peculiar pseudopodia. The middle part of the body is enlarged into an 

 ellipsoidal form, where nuclei and sporoblasts are present. From this part 

 two, rarely one or three processes are formed, which branch out several 

 pseudopodia of different length. The finer portions of pseudopodia anasto- 

 mose each other and form a characteristic and remarkable network. 

 Differentiation of protoplasm is not very distinct. Ectoplasm is not well 

 developed, tho covering the entire surface of the body as a thin la)'er. 

 Endoplasm slightly vacuolated and granular, forms the greater part of the 

 body. Disporous and polysporous. 



Spore: Form and size (?) resemble C. arcuata. Slightly curved toward 

 the posterior side. Valves usually unequally built, one being longer than 

 the other. Sporoplasm almost always asymmetrically situated in the shell. 

 Polar capsules on each side of the sutural plane and of the plane perpen- 

 dicular to the sutural plane, cutting the spore into two equal parts. Young 

 spores in development ellipsoidal to kidne)^ bean shape. Dimensions: 

 sutural diameter 12 to 20/i, breadth 50 to 80/x. 



* Professor J. Zeitlin has kindly translated some part of the paper, for which the writer 

 expresses his thanks. 



