INDEX OF SUBJECTS 



623 



Try panodiniwn, Key, 304 

 Trypanosoma cruzi, Fig. 47, p. 96; Fig. 

 48, p. 97 



ffambiense, Fig. 97, p. 212 



Key, 309 



Iciinsi, life cycle. Fig. 118, p. 238 

 Trypanosomatidse, characteristics, 291 

 Trypanosomiasis, 288 

 Tubifera, Key, 352 

 Tuscaroridse, characteristics, 349 



Undella, Key, 409 

 Undulating membranes, 109, 149 

 Unequal division, 227 

 Uradiophora, classification, 430 

 Urceolarina, characteristics, 396 

 Urceolus, Key, 307 

 Uric acid, 170 

 Urnula, Key, 414 

 Urobarrouxia, classification, 440 

 Urocenti'um, Key, 405 



turbo, Fig. 168, p. 383 

 Uroglena, Key, 300 



Uroglenopsis, americana, Fig. 18, p. 39 

 odors and tastes, 52 

 Key, 300 

 Uroleptus, Key, 410 



mobilis, conjugation merotomy. 

 Fig. 220, p. 529 

 nuclei fusing. Fig. 224, p. 

 536 

 division rate, 206 

 double individual, Fig. 16, p. 

 37 

 origin, Figs. 194, 5, 6, p. 

 465 

 life cycle, 475 



.sj'noi)tic tables, 560 

 macronucleus at division. Fig. 



104, p. 221 

 meiosis. Fig. 218, p. 525 

 meiotic division, 78 

 mutations, 579 

 old age effects, Fig. 7, p. 28 

 reorganization, Fig. 26, p. 66 

 vitalitv graphs. Fig. 232, p. 

 558;" Fig. 237, p. 581; Fig. 

 198, p. 472 

 Uroleptus pisces, Fig. 74, p. 145; Fig. 



175, p. 392 

 Uronema, Key, 405 

 Uronychia, Key, 411 



transfuga, Fig. 107, p. 225 



merotomy, Fig. 108, p. 226; 

 Fig. 202, p. 485 

 Urophagus, Key, 312 

 Urosoma, Key, 410 



Urospora, classification, 429 

 lagidis. Fig. 184, p. 434 



Urostyla, Key, 410 



Urostylidse, characteristics, 390 



Urotricha, Key, 403 



f areata. Fig. 165, p. 378 



Urthiere, 17 



Vaciiolaria, Key, 307 

 Vaginicolla, Key, 412 

 Vaginulina, classification, 355 

 Vahlkampfia, Key, 357 



Umax, chromidia, Fig. 29, p. 67 

 cysts. Fig. 5, p. 24 

 division. Fig. 99, p. 213 

 Vampyrella, Key, 350 

 Vampj-rellidse, characteristics, 325 

 Ventral cirri, 150 

 Verneulina, classification, 356 

 Vitality, 45, 465 



and life, 164 



curve of, 471 



defined, 166 

 Volutin, 47 



Volvocidae, characteristics, 281 

 Volvox, 18, 306 



aureus. Fig. 136, p. 282 



globator, Fig. 136, p. 282 

 Vorticella, Key, 412 

 Vorticellida?, characteristics, 396 



w 



Wagnerella, Key, 342 

 Wardia, classification, 453 



Yellow cells, 50 



Zelleriella, Key, 401 



Zonomyxa, Key, 358 



Zoochlor elite, 50 



Zoomastigoda, characteristics, 285 



Zoosporidse, characteristics, 325 



Zooteira, Key, 342 



Zoothamnium arbuscula, 22 



Key, 412 

 Zschokkella, classification, 453 

 Zygocyslis, classification, 428 

 Zygosoma, classification, 428 

 Zygote, definition, 418 

 Zygotic meiosis, 531 



