662 



INDEX 



120 ; Fauna Arctica, 199 n. ; on Halere- 

 mita, 257 



Schaudinnia arctica, 200 



Scheel, on brood-formation in Amoeba 

 proteus, 56 n. 



Schewiakoff, on protoplasmic granules, 

 6 n. ; on geographical distribution of 

 fresh -water Protozoa, 47 n. 



Schiemenz, on the way in which Starfish 

 open bivalves, 440 



Schizaster, 556 



Schizogony, of Coccidiaceae, 99 f., 101 f. ; 

 of Haemosporidae, 102 ; of Acysto- 

 sporidae, 104 f. 



Schizogregarinidae, 97 



Schizomycetes, 36 f. , 44 



Schizont, 99 ; of Acystosporidae, 103, 104f. 



Schizopathes, Jfi8 



Schizophytes, relations of, 48 



Schizotricha (Ciliata), 138 ; S. socialis, 

 branched tube of, 152 ; S. dichotoma 

 (Plumulariidae, 279), 276 



Schlumberger, on dimorphism of Forami- 

 nifera, 67 



Schneider, on Sporozoa, 94 



Schrammen, 215 n. 



Schroter, on Myxomycetes, 93 n. 



Schuberg, on cilia and ciliary motion, 18 n., 

 141 n. 



Schultze, Max, on Protozoa and on proto- 

 plasm, 46 ; on structure of Foraminifera, 

 62 



Schulze, F. E., on Heliozoa, 71 ; on Sponges, 

 167, 197 n., 199, 200 ; on Spongicola, 

 318 



Schiitt, on Dinoflagellata ("Peridiniales "), 

 119, 132 



Sclerobase, 371, 407 



Scleroblast, 171, 330 



Scleroderm, 371 



Sclerogorgiidae, 351 



Sclerophytum, 330, 336, 348, 8 #9 ; S. 

 querciforme, 348 



Scopula, 141 n. 



Scuta buccalia, of Ophiothrixfragilis, 485 



Scutellidae, 5I/.9 



Scyphidia, 138, 158; 8. scorpaenae, 

 Zooxanthella symbiotic in, 125 



Scyphistoma, 317 



Scyphomedusae, 310 f. 



Scyphozoa,&?0f; colour, 310; food, 311; 

 phosphorescence, 311 ; reproduction, 

 316 ; size, 310 ; structure, 312 ; symbi- 

 osis, 311 



Scytophorus, 380 



Sea, luminosity or phosphorescence, pro- 

 duced by Cystoflagellata, 132, 134 ; by 

 Dinoflagellata, 132 ; red colour of, due 

 to Dinoflagellata, 132 



Sea-anemones, 326, 365, 377 



Sea-cucumbers ( = HolothurOidea), 561 



Sea- fans ( = species of Gorgon acea, 350) 



Sea-lilies ( = Crinoidea, 580 f. ) 



Sea-pens, 326, 358 



Sea-pansy, 364 



Sea-urchins ( = Echinoidea), 503 ; ovum of, 7 



Secondary body-cavity ( = Coelom, q.v.) 



Secondary spines, of Echinus esculentus, 

 506 ; of Cidaridae, 532 ; of Colobocen- 

 trotus, 532 ; of Heterocentrotus, 532 

 of Echinocardium cordatum, 550 



Secretion, 13 



Segmentation, 32 n. ; of schizont oi 

 Acystosporidae, 104 ; of oosperm, 104 f.; 

 of zygotomeres, 104 f. ; of reproductive 

 cells of Volvox, 126, 127 ; telolecithal, 

 133 n. 



Semaeostomata, 323 



Semon, on the phylogeny of Echinodermata, 

 622 



Semper's larva, 405 



Senility in life-cycle of Ciliata, 148 



Senn, on Flagellates, 119 



Sense-organs of Metazoa, 40 



Sensory cilia, 141 



Septum, protoplasmic, in Dicystic Gre- 

 garines, 97, 98 f. ; calcareous, of Madre- 

 poraria, 370 



Seriatopora, Jfil 



Sertularia, 278 ; 8. abietina, 278 



Sertulariidae, 278 



Serumsporidium, 89 



Sex, binary ( = syngamy with marked in- 

 equality between the pairing-cells), 33 f. ; 

 of Pterocephalus, 99 ; of Stylorhynchus, 

 99, 100; of Coccidiaceae, 91 1, 99 f . ; of 

 Haemosporidae, 102 f. ; of Sarcocystis 

 tenella, 108 n. ; of Volvocaceae, 128 f. ; 

 of Eudorina, 129 ; of Peritrichaceae, 

 151 f. 



Sex, ternary, of Pandorina, 128 f. 



Sexual fusion of Halteridium, 103, 105 



Sheath, tentacular, of Suctoria, 159 



Sheep, host of Sarcocystis tenella, 108 n. 



Shell, of Diatomaceae, 84 ; of Foraminifera 

 and of Rhizopoda see Test ; of Radio- 

 laria see Skeleton ; cuticular, of Flagel- 

 lates, 113 see Theca ; siliceous reticu- 

 late, of Silicoflagellates, 110 ; -substance 

 of Foraminifera, 62 ; of Polytrema, 62 



Shipley, 197 n. 



Sickle - cells, sickle -germs, 48, 94 f., 97, 

 101 ; of Lankesteria, 95 ; of Sarco- 

 sporidiaceae, 108 



Side-plates, of arms of Crinoidea, 589 ; of 

 Pentacrinidae, 591 ; of Comatulidae, 594 



Siderastraea, 373, 375, Jfi3 ; S. sideraea, 

 403 



Siebold, v., on Sporozoa, 94 



Siedlecki, on Sporozoa, 94 ; on reproduction 

 of Lankesteria, 96 n. ; on life -cycle of 

 Coccidiidae, 99 



Sierra Leone, prophylaxis of malaria at, 

 106 



