88 II.UNOJS BIOLOGICAL MONOGRAPHS [326 



Color of the body greenish to dark green. The protoplasm is clearly dif- 

 ferentiated into ectoplasm and endoplasm. The ectoplasm is hyaline and 

 covers the entire surface of the body. It appears as a fine fibrous structure 

 when fixed with Bouin's solution. The endoplasm contains besides nuclei, 

 two kinds of spherules; one smaller and yellowish "color-carriers" and the 

 other larger and light to dark greenish reserve bodies. The color-carrier 

 is in part composed of myelin, while the reserve body is of glycogenous 

 nature. The infection was studied experimentally per os: young tropho- 

 zoites appeared in 3 to 5 days which continued to 10th day, various tropho- 

 zoites were seen in 13 to 19 da}^, and sporulating individuals were first 

 recognized in 39 days after the infection. The trophozoite multiplies in 

 number either by fission or by budding. It usually contains enclosures 

 which seem to be degenerating erythrocytes. Mictosporous. 



Spore: Ovoidal. Shell- valves show wide edge at sutural plane, which 

 is attenuated at the anterior end and forms a quadrilateral process at the 

 posterior end, from which a row of ciUa grows. Shell-valves have ridges 

 (6 to 7), which run parallel to the posterior margin. The striations may 

 vary considerably. Four polar capsules at the anterior end. Dimensions: 

 length 8/i. Erdmann gave the following dimensions: Spores from Torpedo 

 marmorata and T. ocellata: length 6 to 9yL, breadth 5/i, polar capsule 3^ 

 by 2/i. Those from Scyllium asterias: length 8 to 9n, breadth 6/x, polar 

 capsule 2m by 1/u. Those from Raja hatis: length 7 to 8//, breadth 5m, 

 polar capsule 2n by 1^. Length of polar filament 20 to 30m (absolute alco- 

 hol warmed up to 40** C). 



CHLOROMYXUM CAUDATUM Thelohan 

 [Fig. 114] 

 1895 Chhromyxum caudatum Th61ohan 1895 : 346 



Habitat: Gall-bladder of Molge cristata Laur.; Vicinity of Rennes. 



Vegetative form: Body yellowish with lobose pseudopodia. Proto- 

 plasm finely granular. 



Spore: Oval or spheroidal. Shell enlarged at the anterior part, having 

 a simple or bifurcated tail-like process, as in Henneguya, at the posterior 

 end. Dimensions: total length 18m, length 8m, breadth 6 to 7m, length of 

 tail 10m. 



CHLOROMYXUM QUADRATUM Thelohan 



