315] STUDIES ON MYXOSPORIDI A— KUDO 77 



CER\TOMYXA FLAGELLIFERA Davis 

 [Fig. 62] 

 1917 Ceratomyxa flageUifera Davis 1917:227 



Habitat: Gall-bladder of Carcharhinus sp?; Beaufort (July). 



Vegetative form: Pyriform, short, tapering toward the posterior end, 

 sometimes dividing into a number of long, slender, transparent processes. 

 Extremely long filiform pseudopodia, developed at anterior end, can be 

 seen to sweep slowly back like a whiplash until they come to lie by the side 

 of the body. Progressive movements slow. Ectoplasm clear, transparent, 

 forming a distinct layer at anterior end. Endoplasm in large trophozoites 

 filled with large numbers of rod-shaped, bacteria-like bodies, which are more 

 abundant in the anterior half than in the posterior. Endoplasm in younger 

 trophozoites, with much less or without any bacteria-like bodies, shows a 

 vacuolated structure. Size up to 115 to I20fi in length and 40 to 45/* in 

 breadth. Disporous. 



Spore: Valves greatly elongated, conical, with rounded ends. Sutural 

 ridge well marked. Polar capsules large, opening on opposite sides* of 

 spore. Coiled polar filament very distinct. Sporoplasm granular, symmet- 

 rically situated, but extending only a short distance into each valve. 

 Dimensions: breadth II8/1, sutural diameter 12/x, diameter of polar cap- 

 sules 6/i. 



CERATOMYXA AGGLOMERATA Davis 



[Fig. 63] 



1917 Ceratomyxa agglomerata Davis 1917 : 228 



Habitat: Gall-bladder of Synodus foetans; Beaufort. 



Vegetative form: Pyriform, usually with long, slender, posterior 

 process. Body colorless and transparent. Actively motile, moving by 

 means of characteristic wavelike movements of the ectoplasm, from which 

 are projected numerous short, conical to filiform pseudopodia. Pseudo- 

 podia travel back along sides of body for about one-third its length and 

 then disappear, new ones being continually formed at the anterior end. 

 Ectoplasm distinguishable at anterior end. Endoplasm clear, very trans- 

 parent, usually homogeneous, sometimes finely granular. Large numbers 

 of fat globules usually present. Size of sporulating trophozoites 38/i by 

 12/i. Disporous. 



Spore: Asymmetrical, one valve being smaller and more attenuated 

 than the other; larger valve compressed. Polar capsules spherical. Coiled 

 polar filaments indistinct. Sporoplasm filling nearly entire smaller valve, 

 but only extending a short distance into the larger one. Dimensions: 

 breadth 24 to 28ju, sutural diameter 5ju, diameter of polar capsules 3ju. 



