General Morphology of the Protozoa 41 



.r--n 



B 







D 



/.O.a 



a 



(va:55w^ 



> ' '.-..•.% 



H 



/^\. 



/:.\ 









E F G ~-^^ 



"-■. \-y/ 



t..^ y 



Fig, 1. 19. A. Mitochondrial network in Polytuiiia uvellu; \2700 (after 

 HoUande). B. Mitochondria and one nucleus in Protoopalina hylarnm; dia- 

 grammatic (after Richardson and Horning). C. Granules stained with neu- 

 tral red in Chlamydomouas variabilis: \1170 (after Dangeard). D. Nfitochon- 

 dria in Chilomonas Paramecium; x270O (after HoUande). E. Neiitral-red 

 granules in Paramecium caudatum; x3I0 (after Dunihue). F. Neutral- 

 red granules in EugJena polymorpha; x635 (after Dangeard). G. Osmio- 

 philic inclusions in associated "gametocytes" of Gregarina cuneata; x635 

 (after Jo\et-Lavergne). H. Osniiophilic inclusions in P. caudatum; x245 

 (after Dunihue). I. Osniiophilic inclusions in Protoopalina hylarurn; dia- 

 grammatic (after Richardson and Horning). Key: c, chromatophore; ^v, food 

 vacuole; n, nucleus; v, developing food vacuole. 



are even more varied: association with the deposition of lipids in grega- 

 rines (112); a causative role in amoeboid movement (19); mitochondrial 

 origin of digestive enzymes (92); transportation of waste products to con- 

 tractile vacuoles (165); transportation of enzymes to food vacuoles and 

 of digested materials away from the vacuoles (166); and association with 

 the deposition of paraglycogen (156). A belief that protozoan mitochon- 

 dria are involved in oxidations is in accord with the demonstration that 

 mitochondria contain most of the succinic dehydrogenase in liver cells 

 (87). Joyet-Lavergne (113) reported the capacity of mitochondria in gre- 



