666 



INDEX 



Stylactis, 268, 270 ; S. abyssicola, 268 ; 

 S. minoi, 268 ; S. vermicola, 268, 269 ; 

 S. spongicola, 268 



Stylaster, 285, 286 



Stylasteridae, 285 



Stylasterina, 283 



Stylatida darwinii (Virgulariidae, 362), 

 360 



Style, 284 



Stylocordyla stipitata, 216 



Stylonychia, 138 f. ; meganucleus of, 1 44 ; 

 S. mylilus, 138, 139 f. 



Stylopodium, 60, 61 



Stylorhynchus, 97, 99 ; syngamy of, 100 



Stylostichon, 225 



Stylus, 183, 184 



Sub-costal canals, 415 



Sub-tentacular canal of Antedon rosacea, 

 586 



Suberites, 219, 224, 230 ; S. domuncula, 219 



Suberogorgia, 351 



Sucker(s), of Mesodinium, 152 ; of Trach- 

 elitis, 153 n. 



Suction mechanism in Choanophrya, 159, 

 161 



Suctoria, 158 f., 160, 162 ; animal nutri- 

 tion of, 40 



Sugar, 15 



Sulculus, 369 



Sulcus, 369 



Supero-marginal ossicle of Asteroidea, 436 



Supplemental skeleton of Foraminifera, 

 63, 66 



Surface, protoplasmic movements in rela- 

 tion to a, 20 see Thigmotaxy, Stereo- 

 taxy ; ratio of mass to, 14, 23 f. ; 

 -tension in relation to protoplasmic 

 movements, 17 ; to penetration of ovum 

 by sperm, 34 



Surra disease, 119 



Swarmers of Foraminifera, 67 f. ; of Dino- 

 flagellates, 131 see also Zoospores 



Sycettidae, 187 



Sycon, 187, 221 ; 8. carteri, 187 ; S. coro- 

 natum, 187 ; & setosum, development, 

 188, 189, 231 ; & raphanus, develop- 

 ment, 190, 226 



Symbiosis, 86, 125, 219 ; Pelomyxa, 53 ; 

 Heliozoa, 73 ; Radiolaria, 80, 86 ; Acan- 

 tharia, 80 ; Ophrydium, 158 ; Para- 

 mecium bursaria, 153 ; Scyphidia scor- 

 paenae, 125 ; Stentor polymorphus, 154 ; 

 Vorticella sertulariae, 125 ; Ephydaiia 

 fluviatilis, 175 ; Hydra viridis, 126, 

 256 ; Turbellaria, 73, 126 ; Gonvoluta, 

 73 ; Millepora and Zooxanthellae, 261 ; 

 in Gymnoblastea, 268 ; Lar and Sabella, 

 273 ; Cannopora and Aulopora, 283 ; 

 in Scyphozoa, 311 ; Alcyonaria and 

 Zooxanthellae, 339 ; Solenocaulon and 

 Alpheus, 350 ; Eunicella and Cirripede, 

 356 ; Verrucella and Ophiurid, 357 ; 



Pteroeides and Crab, 361 ; Ptilosarcus 

 and Hydroid, 361 ; Zoantharia and 

 Zooxanthellae, 373 f. ; Adamsia and 

 hermit crabs, 377, 381 , Mclia and Sea- 

 anemone, 378 ; Stoichactis and Amphi- 

 prion, 378 ; Pocilloporidae and Hapalo- 

 carcinus, 402 ; in Zoanthidae, 405 see 

 also Zoochlvrella, Zooxanthella 



Sympodium, 583 



Sympodium, 344 ', & coralloidcs, 341 



Sympterura, 502 



Synalcyonacea, 342 



Synapta, 577 ; S. similis, 429 ; S. digitata, 

 576 ; its larva, 608 ; its pupa, 615 ; 

 S. inhaerens, 577 



Synapticula, 402 ; of Eupsammiidae, 404 



Synaptida, 568, 569, 577, 578 



Syncoryne, 265, 272, 297 



Syncrypta, 110, 112 



Syngamy ( = Conjugation), 33 f. ; Rhizo- 

 poda, 56 f. ; Radiolaria, 85 ; Flagellates, 



115 f. ; Chlamydomonadidae, 115 f., 125 ; 

 between resting-cells, 115 f. ; by a ferti- 

 lising tube, 125 ; Volvocaceae, 128 f. ; 

 Suctoria, 161 : Equal, exogamous, 

 Trichosphaerhtm sieboldii, 54, 56 ; 

 Chlamydophrys stercorea, 57 ; Foramini- 

 fera, 68 f. ; Actinophrys sol, 72 ; Gregar- 

 ines, 97 f. ; Lankesteria, 95 ; Monocystis, 

 96 ; Cercomonas dujardinii, 116 n. ; 

 Lamblia, 116 n. ; Polytoma uvella, 116 

 n. ; Tetramitus rostratus, 116 n. ; Tricho- 

 monas, 116 n. ; Chlamydomonadidae, 

 125 ; Dinoflagellates, 131 ; JYoctiluca, 

 133; Ciliata, 148 f. : Equal, endo- 

 gamous, Amoeba coli, 57 ; Aclino- 

 sphaerium, 73 f. ; Stephanosphaera, 

 128: Unequal (binary, bisexual), 

 Centropyxis acideata, 57 ; Radiolaria ( ?), 

 85 ; Stylorhynchus, 99, 100 ; Ptero- 

 cephalus, 99 ; Coccidiaceae, 97, 100 f. ; 

 Coccidium, 100, 101 f . ; Adelea ovata, 

 101 ; Acystosporidae, 97, 104 f. ; Sarco- 

 sporidiaceae, 108 ; Dallingeria drysdali, 



116 n. ; Monas dallingeri, 116 n. ; Bodo 

 saltans, 116 n., 117 f. ; B. caudatus, 

 116 n. ; Halteridium, 120 ; Chlamydo- 

 monadidae, 125 ; Volvox, 127 f. ; Pan- 

 dorina morum (ternary), 128, 129 ; 

 Eudorina, 129; Peritricbaceae, 151, 

 157 ; Vorticella, 157 



Syphilis in relation to Treponema palli- 

 dum, 121 



Syringolites, 344 



Syringopora, 283, 329, 343, 344 



Syzygy ( = association) of Gregarines, 99 ; 

 in Crinoids, 582, 587 



Tabulae, 257, 345, 385, 387 



Tail -like appendages, of certain Ciliata, 



141 n. ; (spine) of Caenomorpha uni- 



serialis, 154, 155 



