Text-figure 5. Schematic drawing of Sarcocystis tenella. Polar 

 ring and conoid enlarged at upper right, cross-section through 

 anterior body region at lower right. C, conoid; CV, unidentified 

 low-density vesicles; CG, dense granules of the central body zone; 

 F, longitudinal fibers beneath the pellicle; M, mitochondria; N, 

 nucleus; n, nucleolus; P, polar ring; S, fibers filling the anterior 

 third of the body; V, vesicles in the posterior cytoplasm. From 

 Ludvik, 1958. 



