Index 



Parabasal bodies, in Giardia microti, 

 function of the, 120-125; effect 

 of encystment on, 121 ; reserve 

 food centers, 121; constitution 

 of, 122-123, 125; biochemical 

 and staining qualities, 122; origin, 

 122, 124, 125. 



Parabasal body, use of term, 144; 

 in cycle of Trypanosoma lewisi, 

 140, 141, 144, 149. 



Parabasal-plasm, conditions of, in 

 Giardia microti, 123. 



Paragonimus ringeri, 364. 

 westermanni, 369. 



Paramoeeium, 86, 432, 447, 450. 

 aurelia, 86. 



Parasites, blood, 138; natural, 138, 

 adaptation of, 138. 



Parasitism, by blood-sucking fly 

 larvae, 191, 192, 198; in Collo- 

 dietyon triciliatum, 239. 



Parker, G. H., quoted, 9, 10; cited, 10, 

 69. 



Patten, B. M., cited, 71. 



Patton, W. S., cited, 138. 



Pavillard, J., cited, 324. 



PavMardia, 323, 329. 



tentaculifera, 321, 322, 323, 326. 



Pediastrum, as a food found in Collo- 

 dietyon triciliatum, 206, 221 ; fig- 

 ure showing, opp. 264. 



Pegosomum saginatum, 340. 



Pelseneer, P., cited, 85. 



Pentatomidae, 137. 



Peridinium, 446 ; as a food found in 

 Collodictyon triciliatum, 206, 221 ; 

 plate showing, opp. 264. 

 penardii, 204. 



Peristalsis, 118. 



Peromvscus gambeli, 116. 



Philodina, 206. 



Phosphorescence, effect of, 3. 



Phototropism, factor in plankton mi- 

 gration, 10, 16. See also Aeartia 

 elausi; A. tonsa; Calanus fin- 

 marchic.ua; Euoalanas elongatus; 

 Labidoeera trispinosum; Metridia 

 lucens; Sagitta bipunctata. 



t'hrvnotettix, 229. 



Phyllomitus, 235. 



Physa gyrina, 361. 



occidentalis, host of cercaria of 

 Echinostoma revolutum, 336, 342, 

 361, 363, 365, 368, 372. 



Physiological or metabolic rhythm, 

 factor in plankton migration, 10. 



Physiological rhythm in geotropism. 

 See Rhythm, physiological. 



Physiology of organisms, changes in, 

 in captivity, 79. 



Phytomonadina, 236. 



Pinole tuff, 299, 310; plate showing, 

 opp. 312. 



Pipilo crisalis erisalis, 196, 197. 



Plagiorchiidae, 278, 279, 290, 297. 



Planaria, 71, 368. 



Plankton animals, marine, Reactions 

 of with Reference to Their 

 Diurnal Migrations, 1 ; habits of, 

 in nature, 1; vertical movement 

 among, 4; methods of experi- 

 ment, 4. 



Planorbis trivolvis, 361. 



Plasmodium, 86, 170. 



Plath, O. E., 191. 



Platvdorina, 206. 



Platyheca, 235. 



Pleurogenes claviger, 278, 290, 294. 

 medians, 278, 290, 294. 



Pleurogenetinae, 278, 290. 



Poche, F„ cited, 318. 



Polvgordius. 7; larvae, 30. 



Polymastigina, 144, 164, 236, 237. 



Polymastix, 236. 



Polyselmis virdis, 235. 



Polvtoma, 446. 



Porter, A., cited, 87, 106, 107, 126, 

 131, 132, 138, 139, 166. See also 

 Fantham and Porter. 



Pouchet, G., 323. 



Pouehetia, 320. 

 cochlea, 324. 

 cornuta, 324. 

 maculate, 321, 324. 



Prionopeltus atopus, 394, 395. 

 indus, 393, 395. 

 kelaarti, 394, 395. 



Promitosis, evidence of, in division of 

 Critheria euryophthalmi, 158. 



Prosotocus confusus, 278, 290, 294. 



Proterythropsis, 324. 



crassicaudata, 321, 322, 324. 



Protoealliphora azurea, 191, 198; 

 study of, 194-196; effect of 

 blood-sucking habit of, on birds, 

 196-199. 

 chrysorrhea, 191, 198, 199. 



Protococcus, 215. 



Protomastigineae, 236. 



Protomonadiua, 144, 157, 237. 



Protozoa, 120, 204. 



Prowazek, S., quoted, 234; 248, 249. 



Prowazekia lacertae, motor apparatus, 

 405. 



Pteropod Desmopterus Pacificus Sp. 

 Nov., 85-88. 



Pyroeystis, 318. 



Pyrrhocoridae, 137. 



Radiolaria, 240. 



Rana aurora, 283. 



Rana Aurora, New Distome from, 

 283-298. 



Rat-flea, 140. 



Eavenal, Dr. W. de C, quoted, 304. 



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