268 ELECTRON-MICROSCOPIC STRUCTURE OF PROTOZOA 



of heterotrichs, 197 



of opalinids, 163 



of phytoflagellates, 101-103 



of protozoa, 227 



of rhizoflagellates, 171 



of sporozoa, 89 



of trichostomes, 188 

 Physarum, 18, 88-89 

 Physomonas, 107 

 Phy tomonadea, 1 1 7-1 23 

 phytomonads, 23, 132-133, 160 

 pigment granules, 203 

 pinocytic activity, 87 

 pinocytosis, 32-38, 73, 87, 140, 165 

 plasmalemma, 33-37, 73 

 plasma membrane, 9, 41, 44 

 Plasmodium, 92-99, 216-219 

 Platymonas, 106, 121 

 Plistophora, 100 

 polar, 



cup, 95-99 



filament, 100, 219 

 polarity, 162, 170 



oi P edinomonas , 120 

 polarization of cell, 133 

 Polykrikos, 63 

 Polymastigida, 143 

 Polysphondilium, 87 

 Porphyridium, 101-102 

 Poteriochromonas, 111 

 Prorodon, 1 84 

 proterokont, 39 

 Proteromonadida, 136 

 Protista, 3 



Protomonadica, 134, 143 

 Protozoa, 4 

 Protozoan genera, list of electron 



microscope studies, 232 

 protichocysts, 56, 171 

 Prymnesium, 113 

 pseudoplasmodium, 87 

 pseudopodia, 10, 71, 133 

 Pseudotricbonympha, 40, 152, 159 

 Pteridium, 228 

 pyrenoid, 23 



Pyrsonympha, 149-152, 160-162, 

 219-221 



Radiolarae, 83 

 radiolarians, 71 

 rectum, 206, 210 

 regeneration in stentor, 202-203 

 reorganization bands, 66, 67 

 reservoir, 125, 127-129, 139-140 

 respiratory enzymes in 

 mitochondria, 18 

 retrociliary fibers, 209-212, 220 

 Rhizoflagellata, 71 

 rhizoplasts, 109-115, 119, 133, 



133, 160-161, 219-222 

 Rhizopoda, 72-83 

 rhizopods, 215 

 ribonucleic acid, 11 

 ribonucleoprotein, 11 

 RNA, 11, 51 

 rodorgan, 131, 161, 220 

 rod-shaped body, 140 

 root fibrils, 114, 120, 133-135, 



160-161, 202-205, 213, 219-220 

 rostral, 



tube, 155, 158 



vacuole, 142 

 rostrum, 155, 158 



Sarcocystis, 97-99, 219 



Sarcosporidea, 89, 98 



scales, 105-107, 111, 119-120 



scopula, 192-193 



silverline systems, 169-173, 178, 



181, 190, 211-213, 216-218 

 skeletal, 



plates, 206, 211 



rods, 190 

 skeleton, 194-195 

 slime molds, 87-89 

 smooth muscle, 223 

 sol-gel transformations, 75 

 spermatid nuclei, 69 

 spermatozoa, 43 

 sperm tails, 38, 42 

 Spbaerella, 121 

 Sphagnum, 228 

 spicules, 83 

 spindle fibrils, 62, 159, 219 



