ZOOFLAGELLATES 



153 



large numbers of flagella and, typically, of some other elements of 

 the mastigont. 



Of the species studied, the least outrageously complex in its 

 morphology is Lophomonas striata (Text-fig. 9), a rather small, 

 spindle-shaped cell with a tuft of 100 or more flagella arising from 

 a round plate slightly recessed into the anterior pole. From the 



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Text-figure 9. Schematic drawing of a transverse section of 

 Lophomonas striata. CMP, discontinuous bands or plates of the 

 calyx; F, fibrils composing the calyx bands; N, nucleus; PM, cell 

 membrane over the convoluted folds of the surface; R, rods 

 adhering to the surface. From Beams, King, Tahmisian and 

 Devine, 1960. 



circumference of the plate, a cylinder called the calyx, consisting 

 of what some light microscopists believe to be multiple axostylar 

 fibers (Kirby, 1949; Grasse, 1952), descends posteriad, enclosing 

 the axial nucleus and tapering to an end in the postnuclear 

 cytoplasm. Peculiar, longitudinally oriented, rod-like striations 

 have been variously interpreted as being cytoplasmic bodies or 



