592 



INDEX 



Choanofiagellate collar, 104 

 Choanoflagellates, distribution of, 26 

 Choenia teres, Fig. 191, p. 472 

 Chondriochonts, 73 

 Chondriome, 73 

 Chondriomites, 73 

 Chonotricha, Key, 522 

 Chromatin, 54 

 Chromatoid bodies, 395 

 Chromidia, p. 69 

 Chromosomes in Uroleptus, 321 



origin, 88 



meiotic, 100 

 Cilia, 152 



and membranes of Infusoria, Fig. 

 69, p. 124 



composite, 155 



replacement, 223 



structure, Fig. 82, p. 152; Fig. 83, 

 p. 153 

 Ciliary beat, 127 

 Ciliata, anal modifications, Mil 



cytostomes, 164 



division zone, 215 



myonemes, 124 



oral modifications, 164 



position of mouth of, 167 

 Ciliates, amicronucleate, 477 



commensal, 397 



distribution, 26 



parasitic, 397 



symbiotic, 397 

 Cirri, 157 



anal, 158 



caudal, 158 



frontal, 158 



marginal, 158 



movement, 160 



substitution, 223 



tactile, 161 



types, 479 



ventral, 158 

 Cladomonas fruticulosa, colony, 38 

 Clathrostomidae, Key, 501 

 Clathrulina, colony, 38 



elegans, stalk origin, 148; Fig. 80, 

 p. 139 

 Cleveland, Paramecium cysts, 24 



symbiotic flagellates, 203 



wood digestion by flagellates, 199 

 Cleveland and Sanders, excystation of 



Endamoeba dysenteriae, 395 

 Climacostomum virens, frontal field, 169 

 myophanes, neurophanes, Fig. 

 71, p. 128 

 Clowes, permeability, 172 



reversibility of phase, ISO 

 Club root in cabbages, 386 

 Cnidosporidia, 545 



Key, p. 567 



spore types, Fig. 219, p. 547 

 Coccidia, effects produced, 104 



lumen-dwelling forms, 541 

 Coccidiida, 541 



Coccidiida, Key, 564 

 Coccidiomorpha, 541 



Key, 564 

 Coccidioses in chickens, 405 

 Coccidium (eimeria) schubergi, centriole, 



63 

 Coccosporidae, Key, 569 

 Cochliopodium, normal, Fig. 9, p. 31 

 Cochlosomidae, Key to genera, 431 

 Codosiga botrytis, origin of flagelluin, 

 107; Fig. 59, p. 108 



pulcherrimus, Fig. 92, p. 165 



ramosum, colony, 38; Fig. 20, p. 3') 

 Coenomorphamedusula, Fig. 208, p. 514 

 Cohn, budding in Myxosporidia, 227 

 Colepidae, Key, 494 

 Colcps hirtus armature, Fig. 73, p. 136 

 cilia structure, Fig. 82, p. 152 

 division, 215 

 Collars in choanoflagellates, 165 

 Collin, origin of basal granules, 122 

 < 'oil null,,, Fig. 172, p. 400 

 Collodictyum triciliatum, nuclear divi- 

 sion, Fig. 51, p. 96 

 Colonies, 18, 21, 38 

 Colony types, 38 

 ( 'olpidium colpodd, canalicular system, 



194; Fig. 101, p. 194 

 Colpodidae, Key, 501 

 Comatricha nigra, Fig. 184, p. 447 

 Commensals, 202 

 Composite ciliary organs, 155 

 Concophthiriidae, Key, 501 

 Concrement vacuoles, 171 

 Condylostoma patens, Fig. 206, p. 511 

 Condylostomidae, Key, 510 

 Conjugation and encyst ment, graph, 

 Fig. 137, p. 268 



and environment, 286 



conditions for, 285 



disorganization at, 311 



effects of salts on, 288 



endogamous, 286 



reorganization after, 312 



survival value of, 333 



tests, 267 



unfavorable effects on Para unci inn. 

 332 

 "Conscious" activities, 189 

 Contaminative infection, 360 

 Contractile vacuoles, 170 



and Golgi apparatus, 7!) 

 function, 176 

 membrane of, 178 

 supposed functions, 177 

 Contraction in ciliates, 125 

 Coordinating fibers, 127 



systems in protozoa, L83 

 Coprozoic protozoa, 357 

 Copulation and conjugation, 274 

 Cornuspira, type of shell, Fig. 19, p. 38 

 Cortex, 132 



zonal differentiation, 152 

 Cortical differentiations, L35 



