646 



INDEX 



Infiiiulibulum, 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 Choanofiagellates, 122 ; by Dinofla- 

 gellates, 131 ; by Carchesium, 146 ; by 

 Cole^JS, 150 : — vacuole of, in Flagellates, 

 113; in Oiknmonas, 112; in Choano- 

 fiagellates, 122 



Inner perihaemal ring -canal, of Asterias 

 ruhens, 448 ; development of, in Asterina 

 gibbosa, 612 



Inocnlation of malarial fever in man 

 througli a mosquito, 105 f. 



Insectivorous plants, 38 



Insects, metamorphoses of, 44 ; as hosts of 

 Trichonymphidae, 123 



Interambulacral area, of Echinarachnius 

 parma, 544 ; of Echinocardium cor- 

 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 Ephydatia, 1 77 



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- 

 cliirota, 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 esculentxis, 504 ; of Holo- 

 thuria nigra, 562 



Interstitial growth, 10 



Intestine, 415 ; oi Echinus escidentus, 516 ; 

 of Holothuria nigra, 563 ; of Antedon 

 rosacea, 583 ; of Actinometra, 589 ; of 

 Dipleurula, 605 ; of Protocoeloniata, 616 



Intracapsular protoplasm of Radiolaria, 

 80 f. 



Intramolecular respiration, 14 n. 



Intranuclear spindle of Euglypha, 29 



Invertebrata, hosts of Gregariues, 97 f. 



Iodine, 239 



lophon, 223 



Iridogorgia, 355 



Isaurus, Jfi5 



Ischadites, 201 



Ischikawa, on syngamy of Cystoflagellates, 

 135 ; on structure of Ephelota, 162 



Isidae, 337, 353 



Isidella, 354 



Ms, 353 



Ismailia, prophylaxis of malaria at, 106 



Isochela (a chela divisible by ef.cli of two 

 planes into two equal parts, the two 

 ends being equally developed), 222 



Isocrinus — see Pentacrinus 



Isogamj', 33 f. ; of Rhizopoda, 56 f. ; of 

 Stephanosphaera, 128 — see also Syn- 

 gamy 



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

 lozoum inertne, 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- 

 fiagellates, 121, 123 ; on Sponges, 167 



Jaw, of Ophiothrix fragilis, 482 ; of fossil 

 Ophiuroidea, 502 ; ot 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, 351! 



Jung, 253 n. 



Jungersen, 359 n. 



Karyogamy, 34 n. — see also Syngamy of 



Ciliata " 

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



of micronuclei of Ciliata, 144 f. — see 



also Mitosis 

 Karyolysus, 97 

 Karyosome, 24 

 Keeble, 175 n. 

 Keller, 233 



Kemna, on stylopodiumof Foraminifera, 60 

 Kent, Saville, on Choanofiagellates, 122 f., 



182; on Infusoria and Flagellates, 136 n. 

 Keroeid.es, 351 



Kerona, 13S ; K. poly por urn, 158 n. 

 Kiesel2;uhr, 87 

 Kirkpatrick, 215 

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



