670 



INDEX 



Vexillum, 431 



Vibratile styles of Eotifers, 1-11 



Villogorgia, 356 



Virgularia, 339, 362 ; V. juncea, 360 ; T'. 



mirabilis, 362 ; V. rumphii, 830, 360 

 Virgulariidae, 363 

 Vision, of Asteroidea, 446 ; of Ecliinoidea, 



522 

 Vital forces, 12 f. ; processes, 11 f. 

 N'itreous Foraminifera, 5H, 62 

 Voluntary muscles of Mammals infested by 



Sarcosporidiaceae. 108 

 Volvocaceae, 110, 111, 125 f. ; literature 



of, 119 

 Volvocidae, 111, 126 f., 127, 129 ; theca, 



113 

 Volvox, plasmic cell connexions of, 37 u. ; 



a true vegetable Protist, 130 ; V. globator, 



127 f. 

 Vorticella, 138, 155 f., 157 ; V. sertidariae, 



symbiotic Zooxanthella in, 125 

 Vorticellidae, 157 f. ; fission, 158 ; colonies, 



158 

 Vosmaer, 187 n., 212, 234 n., 237 



Wager, on Euglenaceae, 125 



Wagner, 256 n. 



Wallich, on Protozoa, 45 



Walteria, 199, 202 ; W. Jiemmingi, 206 ; 



W. leuckarti, 206 

 Wasielewski, on Sporozoa, 94 n. 

 Water in protoplasm, 12 

 Water-Fleas, Vorticellidae found on, 158 ; 



rheotaxy of (small Crustacea). 21 

 Water-vascular system, 428 ; of Asterias 



ncbens, 441 ; of Asteroidea, 457 ; of 



Ophiothrix fragilis, 486 ; of Echinus 



esculentus, 516 ; of Echinarachnuis 



parma, 546 ; of Echinocanllum corda- 



tnm, 551 ; of HohAhuria nigra, 564 ; of 



llolothuroidea, 568 ; of Synaptida, 568 ; 



of Molpadiida, 568 ; of Elasipoda, 568 ; 



of Psoitis, 569 ; of Antedon rosacea, 583 ; 



of Carpoidea, 597 

 Weltner, 177, 178 



White Auts, hosts of Trichonymphidae, 123 

 White Man's Grave, 106 

 Wille, on Volvocaceae, 119 

 Willey, 194 n., 248, 421, 422 

 Williams, on density of living protoplasm, 



13 n. 

 Williamson, on structure of Foraminifei-a.62 

 Wilson, on j^rotoplasm, 3 n. ; on syngamy, 



34 n. 

 Wilson, on Sponges, 171, 231 

 Woltereck, 302 

 Wolters, on reproiluction of Jfonoci/sHs, 



96 u. 

 Woodcock, on association and conjugation 



in Gregarines, 99 n. ; on HaemoHagellates 



(=Trypanosomidae), 119 n. 

 Worms, Earth-, hosts of Monuajstis, 95 



Wreath, adoral, peristomial, of cilia or 

 membranellae of Ciliata Trichostoniata, 

 137 f. ; of Stylonychia mytilus, 139 f. ; 

 of ^MetopKs, 154 ; of Gaenomorpha 

 unisei-ia/is, 155 ; of Vorticella, 156, 

 157 ; posterior, of Vorticella, 156, 157 



Wrightella, 351 



Wrisburg, on organisms of putrefaction, 43 



Wtirmchen, of Gaule, a name for Lankester- 

 clla, 102 



Xenaster, 4'76 



Xeuia, 331, 335, 346, 34S 



Xeniidae, S/fS 



XfiiiisjHijuiiK. jnUcUlformis, 216 



X!l,h,ir„ntha, 7S, 78 

 Xij>lii(j(injia, 357 



Yaws, 121 n. 



Yellow-cells {= Zooxanthella), 80, 86, 125, 



261, 373, 396 

 Yolk-granules of ovum of Sea-urchin, 7 

 Young state of one pairing - nucleus 



essential, 34 

 Yvesia, 224 



Zarabezian Tick, infects man with Trepo- 

 nema, 121 n. 



Zaphrentidae, 4O6 



Zaphrentis, 407 



Zederbauer, on syngamy in Dinoflagellates, 

 131 n. 



Zittel, 241 n. 



Zoantharia, 329, 365 f. ; age, 375 ; food, 

 373; form, 366; gonads, 369; mesen- 

 teries, 366 f., 368 ; mesenteric filaments, 

 369 ; reproduction, 371 ; skeleton, 370 ; 

 stomodaeum, 369 ; tentacles, 366 



Zoanthidae, 404 



Zoanthidea, 370, 4O4 f- 



Zoanthus, 405 ; Z. 7n.acgillivrai/i, 406 ; Z. 

 sulcatus, 406 



Zonarial Radiolaria, 75 



Zoochlorella, 111 ; a Chlamydomonad, 126 ; 

 symbiotic, in Heliozoa, 73 ; in Para- 

 mecium bursaria, 153 ; in Stentor poly- 

 morijlms, 154 ; in Ophrydium, 158 ; in 

 Ephydatia, 175 ; in Hydra viridis-{ = 

 chlorophyll corpuscles), 256 



Zooids of Volvox globator, 127 



Zoosporeae, 89 



Zoospores, of Algae and Fungi, possess 

 contractile vacuole, 15 ; of Lower Plants, 

 17 f. ; of Sarcodina, 49 ; of Tricho- 

 sphaerium, 54 ; of Aiicrogromia socialis, 

 60 ; of Foraminifera, 67 f. ; of Clathrti- 

 lina, 73 ; of Radiolaria, 85 f. ; of 

 Zooxanthella, 86 ; of Acrasieae, 90 ; of 

 Didymium, 92 ; of Paramocba cilhardii, 

 116 n. 



Zootho.mnium, 13S, 158 



Zooxanthella, 110; aChrysomonad, 125; in 



