646 



INDEX 



Infundibulum, 415 



Infusions, appearance of organisms in, 

 42 f. ; organisms of, 136 



Infusoria, 40, 48, 50, 136 f . ; specific 

 . gravity of, 13 n. : zygote does not 

 encyst, 34 



Ingestion, of food, by Amoeba Umax, 9; 

 by Choanoflagellates, 122 ; by Dinofla- 

 gellates, 131 ; by Carchesium, 146 ; by 

 Coleps, 150 : vacuole of, in Flagellates, 

 113; in Oikomonas, 112; in Choano- 

 flagellates, 122 



Inner perihaemal ring -canal, of Asterias 

 rubens, 448 ; development of, in Asterina 

 gibbosa, 612 



Inoculation of malarial fever in man 

 through a mosquito, 105 f. 



Insectivorous plants, 38 



Insects, metamorphoses of, 44 ; as hosts of 

 Trichonymphidae, 123 



Interambulacral area, of Echinarachnius 

 parma, 544 ; of Echinocardium car- 

 datum, 550 



Interambulacral plate, of Echinus escu- 

 lentus, 511 ; of Cidaridae, 533 f. ; of 

 Echinarachnius parma, 544 f. 



Interbrachial septa see Interradial septa 



Interchanges between cell and medium, 14 



Intermediate dorsal process of ciliated 

 band of Auricularia, 608 



Intermediate ( = supplemental) skeleton of 

 Perforate Foraminiferal shell, 63, 66 



Intermittent fever, malarial, produced by 

 Acystosporidae, 103 f. 



Internal budding of Suctoria, 160 f., 162 ; 

 of Ephydat ia, 111 



Internal gills see Stewart's organs 



Internal movements of protoplasm, 17 



Interradial plates, of calcareous ring of 

 Holothuria nigra, 566 ; of Holothuroidea, 

 569 ; of Synaptida, 569 ; of Dendro- 

 chirota, 569 ; of calyx of Crinoidea, 

 589 ; of Thaumatocrinus, 589 ; of Hyo- 

 crinus, 590 ; of Rhizocrinidae, 591 ; of 

 corona of Echinoidea see Interambu- 

 lacral plate 



Interradial septa, of Asterias rubens, 437 ; 

 of Heliasteridae, 474 ; absent in Bris- 

 ingidae, 475 



Interradius, 428 ; of Asterias rubens, 434 ; 

 of Echinus esculentus, 504 ; of Holo- 

 thuria nigra, 562 



Interstitial growth, 10 



Intestine, 415 ; of Echinus esculentus, 516 ; 

 of Holothuria nigra, 563 ; of Antedon 

 rosacea, 583 ; of Aclinometra, 589 ; of 

 Dipleurula, 605 ; of Protocoelomata, 616 



Intracapsular protoplasm of Radiolaria, 

 80 f. 



Intramolecular respiration, 14 n. 



Intranuclear spindle of Euglypha, 29 



Invertebrata, hosts of Gregarines, 97 f. 



Iodine, 239 



lophon, 223 



Iridogorgia, 355 



Isaurus, 405 



Ischadites, 207 



Ischikawa, on syngamy of Cystoflagellates, 

 135 ; on structure of Ephelota, 162 



Isidae, 337, 353 



Isidella, 354 



Isis, 353 



Ismailia, prophylaxis of malaria at, 106 



Isochela (a chela divisible by each of two 

 planes into two equal parts, the two 

 ends being equally developed), 222 



Isocrinus see Pentacrinus 



Isogamy, 33 f. ; of Rhizopoda, 56 f. ; of 

 Stephanosphaera, 128 see also Syn- 

 gamy 



Isospores, 85 ; of Radiolaria, 76 ; of Col- 

 lozoum inerme, 76 



Jaekel, on Silurian Asteroidea and Ophiu- 

 roidea, 501; on classification of Crinoidea, 

 589, 595 ; on classification of Cystoidea, 

 598 



James-Clark, on Protozoa, 46 ; on Choano- 

 flagellates, 121, 123 ; on Sponges, 167 



Jaw, of Ophiothrix frag ills, 482 ; of fossil 

 Ophiuroidea, 502 ; of Echinus esculentus, 

 526 



Jelly, forming theca in Flagellates, 113 



Jelly-fish, 249, 297, 323 



Jennings, on protoplasmic movements, 4 n., 

 16 n. ; reaction of Protista to repellent 

 stimuli, 20 n., 21 n. 



Jensen, on density of living protoplasm, 

 13 n. ; on protoplasmic movements, 16 n. 



Joblot, on organisms of putrefaction, 43 ; 

 on Protozoa, 45 



Joenia, 111 



Johnson, 352 n. 



Juncella, 330, 335, 357 



Jung, 253 n. 



Jungersen, 359 n. 



Karyogamy, 34 n. see also Syngamy of 



Ciliata 

 Karyokinesis, 25, 26, 27 ; function of, 28 f. ; 



of micronuclei of Ciliata, 144 f. s 



also Mitosis 

 Karyolysus, 97 

 Karyosome, 24 

 Keeble, 175 n. 

 Keller, 233 



Kemna, on stylopodium of Foraminifera, 60 

 Kent, Saville, on Choanoflagellates, 122 f., 



182; on Infusoria and Flagellates, 136 11. 

 Keroeides, 351 



Kerona, 138 ; K. polyporum, 158 n. 

 Kieselguhr, 87 

 Kirkpatrick, 215 

 Kishinouye, 313 n., 321 n., 333, 352 



