672 
Turnstone, courtship activities, 287. 
Tylos laireillei, Aud. & Sav., 103. 
Ulidium, S. Wood, 313, 317. 
— charlesioorthii, S. Wood, 313, 317. 
Umbrella-bird, courtship activities, 277. 
Unicellaria, Blainv., 317. 
— appendiculata, Blainv., 317. 
— chelata, Blainv., 317. 
— cornuta, Blainv., 317. 
— lafoyi, Blainv., 3] 7. 
Uniophora dyscrita, H. L. Clark*, 244; 
dlstrib., 230. 
Uroglena, Ekrenb., 450. 
Uroleptus mobilis, Eiigelm., 457. 
Urouema sp., 4-57, 468. 
— schewiakoffi, Buddenb., 468. 
Uronemus f, mentd., 163, 215. 
— spleudens (T/'ttj.) t, structure, 201- 
204, 213-215. 
Uropoda obscura, C. L. Koch, 377. 
[Jroseiu.s acumiuatus, C. L. Koch, ZTJ. 
Uvigerina, Orh., 626. 
— angulosa, Williams., 626. 
— porrecta, Brady, 626. 
— pygraoea, Orb., 626. 
— raphanus, Park. & Jones. 627. 
— selseyensis, Heron-All. Sf Karl., 626, 
646. 
Veretillum australe, Kiik. ^ Broch, 22, 
— malayense, Hickson, 21. 
Vermiculum laive, Mont., 624. 
— ohlongunt, Mont., 606. 
— squamosum, Mont., 624. 
— sub7-otzindum, Mont., 605. 
Verneuilina, Orb., 619, 
— polystropha, Brady, 616. 
— propinqiia, Brady, 619. 
— spiuulosa, Brady, 619. 
Vertex of Chlorops, 405. 
Vespertilio dasycneme, 369. 
Vincularia fragilis, Defr. t, 311. 
Virgularia elegans, Gray, 21. 
Vol vox, Linn., in Highlovr Tarn, 424. 
Vorticella, O. F. Muell., mentd., 450. 
— micro.stoma, 457. 
Vorticella, Esper, 305. 
— polypina, Esper, 305. 
— polypina, L., 306. 
Vosmaeropsis mackinuoui. Dendy *, 477,. 
483, 518. 
Waldeckia, Chevr., 3. 
Walnut, " Italian," mentd., 219. 
Warblers, courtship activities, 275, 277,. 
•^81. 
Wastwater plankton, 421. 
Watersia, Lev., 317. 
— militaris. Lev., 317. 
Watson, 1). M. S., aud E. L. Gill, Structure 
of certain Palfeozoic Dipnoi, 163- 
216. 
Xylotrogus brunneus, Steph., 217. 
Yvesia spiniilata, Hentsch., 505. 
Zanclifer, 58, 66, 67. 
— caribensis, Fremin., 26, 60, 
Zeroon bicornis, Berl., 375. 
— ornatus, Berl., 375. 
— perforatulus, Berl., 375. 
— radiatus, Berl., 375. 
— tragardhii, Halb.*, 375, 392. 
— triangularis, C. L. Koch, 373. 
Zerconiipns, Hull, 374. 
— minutus, Hull, 374. 
Zercoseius, Berl., subgen., 374. 
Zygoptera, mentd., 143. 
Zygotes, phyletic succession, 83. 
PKINTED BT TATLOE AND TEAJTCIS, BED LION COtTET, FLEET STEEET. 
