670 



INDEX 



Vexillum, 4^1 



Vibratile styles of Eotifers, 141 



Villocjorgia, S56 



Virgularia, 339, 36S ; V. Juncea, 360 ; V. 



mirdbilis, 362 ; V. rumphii, 380, 360 

 Virgulariidae, 362 

 Vision, ot Asteroidea, 446 ; of Bchinoidea, 



522 

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

 Vitreous Foraminifera, 58, 62 

 Voluntary muscles of Mammals infested by 



Sarcosporidiaceae, 108 

 Volvocaoeae, 110, 111, 125 f. ; literature 



of, 119 

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



113 

 Volvox, plasraio cell connexions of, 37 n. ; 



a true vegetable Protist, 130 ; V. globator, 



127 f. 

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



symbiotic Zooxanthella in, 125 

 Vorticellidae, 167 f. ; fission, 158; colonies, 



158 

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



Wager, on Euglenaceae, 125 



Wagner, 256 n. 



Wallioh, on Protozoa, 45 



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



W. leuckarti, 206 

 Wasielewski, on Sporozoa, 94 n. 

 Water in protoplasm, 12 

 Water-Fleas, Vorticellidae found on, 158 ; 



rbeotaxy of (small Crustacea). 21 

 Water-vascular system, 428 ; of Asterias 



ruiens, 441 ; of Asteroidea, 457 ; of 



Ophiothrix fragilis, 486 ; of JSchinus 



esculentus, 516 ; of JSchiTiarachnius 



parma, 546 ; of JEchinocardium corda- 



tum, 551 ; of Holothuria nigra, 564 ; of 



Holothuroidea, 568 ; of Synaptida, 568 ; 



of Molpadiida, 568 ; of Elasipoda, 568 ; 



of Psolus, 569 ; of Antedon rosacea, 583 ; 



of Carpoidea, 597 

 Weltner, 177, 178 



White Ants, hosts of Trichonymphidae, 123 

 White Man's Grave, 106 

 Wille, on Volvocaoeae, 119 

 Willey, 194 n., 248, 421, 422 

 Williams, on density of living protoplasm, 



13 n. 

 Williamson, on structure of Foraminifera, 6 2 

 Wilson, on protoplasm, 3 n. ; on syngamy, 



34 n. 

 Wilson, on Sponges, 171, 231 

 Woltereck, 302 

 Wolters, on reproduction of Monocysiis, 



96 n. 

 Woodcock, on association and conjugation 



in Gregarines, 99 n. ; on Haemoflagellates 



(=Trypanosomidae), 119 n. 

 Worms, Earth-, hosts of Monocystis, 95 



Wreath, adoral, peristomial, of cilia or 

 membranellae of Ciliata Trichostouiata, 

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

 of Metopus, 154 ; of Gaenomorpha 

 uniserialis, 155 ; of Vorticella, 156, 

 157 ; posterior, of Vorticella, 156, 157 



Wrightella, 351 



Wrisburg, on organisms of putrefaction, 43 



Wiirmchen, of Gaule, a name for Lankester- 

 ella, 102 



Xciiaster, JflG 



Xenia, 331, 335, 346, 348 



Xeniidae, S48 



Xenospongia patelliformis, $16 



Xiphacaiitha, 78, 78 



Xiphigurgia, 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 

 Tvesia, 224 



Zambezian 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, 4O4 



Zoanthidea, 370, 4O4 f. 



Zoanthus, 405 ; Z. macgillivrayi, 406 ; Z. 

 suhatus, 406 



Zouarial Eadiolaria, 75 



Zoochlorella, 111 ; a Chlamydomonad, 126 ; 

 symbiotic, in Heliozoa, 73 ; in Para- 

 mecium bursaria, 153 ; in Stentor poly- 

 morphus, 154 ; in Ophrydium, 158 ; in 

 Mphydatia, 175 ; in Hydra mridis ( = 

 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 Saroodina, 49 ; of Tricho- 

 sphaerium, 54 ; of Microgromia socialis, 

 60 ; of Foraminifera, 67 f. ; of Olathru^ 

 Una, 73 ; of Eadiolaria, 85 f. ; of 

 Zooxanthella, 86 ; of Acrasieae, 90 ; of 

 Didymium, 92 ; of Paramoeba eilhardii 

 116 n. 



Zootha,mniv,m, 138, 158 



Zooxanthella, 110 ; a Chrysomonad, 125 ; in 



