674 



INDEX. 



VaginuluSy 319, 



Valkeria, 283. 



Valvata, 318. 



VanelluSj 484. 



Varanidcet 439. 



Varaniut, 439. 



Varices, 312, 



Veil, otGoBophoTfiS, 87; of nectocalycea, 

 95 ; of iialied-eved MedusXt 101. 



Yelella, 97, 98, 99. ' 



YeUllidce, 100. 



Venenosa (Ophidia), 433. 



Veneridte, 306, 307; distribution of, in 

 time; 336. 



Vejierupis, 307. 



Ventriculites^ 68. 



Fcniis, 307. 



Venus's girdle, 134. 



Vermegf 142. 



Venmtm, 311, 318. 



Ker/TitfidcE, 214 ; distribution of. In time, 

 233. 



Vertebra, structure of, 349, 350. 



Vertebrata, 345 ; general characters of, 

 345-349 ; skeleton of, 349-364 ; digestive 

 system of, 354 ; bloud of, 356 ; respira- 

 tory system of, 357 ; nervous system of, 

 368 ; reproduction of, 859 ; develop- 

 ment of, 359 ; divisions of, 369-361. 



Vesicle, contractile, ol Protozoa, 45; of 

 Amceba, 60; of ParamceHum., 71; of 

 EpUtylis, 75. 



Vesicles, ot Medusce, 101, 101. 



VeipidjB, 269. 



Vespertilio, 594. 



Vespertilionidce, 694. 



Vibracula, 282. 



Vibrios, 36. 



VUlUi, 497, 498. 



Viperina, 431, 432. 



Virgularia, 126, 127. 



Visceral arches, of the embryo of Verte- 

 brates, 348. 



Vitrea (Sponges), 67. 



Viverra, 681. 



Viverridce, 581. 



Vogtia. 9i. 



Vole, 690. 



Valuta, 317. 



Volutidce, 313, 817. 



Vorticella, 71 ; structure of, 72; repro- 

 duction of, 73, 74. 

 Vortielava, 86. 

 Vulpes, 582, 583. 

 VnlturidcB, 603. 



Wah, 679. 



Waldheimia, 296. 



Walrus, 576, 577. 



Warblers, 499. 



Wasps, 269. 



Water-hen, 431. 



Wajer-vasculnr system, of Annuloida, 

 141; of Echinoidea, 147; otAsteroidea, 

 151 ; of Ophvuroidea, 1 54 ; of Crmoidea, 

 165 ; of Holothuroidea, 160, 161 ; of 

 Scoleeida, 166; of Tceniada, 167; of 

 Trematoda, 171 ; of Turbellaria, 173 ; 

 of Acanthocephala. 176; ofNematoda, 

 177 ; of Jtoti/era, 182. 



Weasel, 680. 



Websteria, 139. 



Whalebone Whales, 517, 546. 



Whales, 610, 511, 618, 614, 617, 621, 544. 

 545, 648, eLS. 



Wolverine. 579. 



Wombat, 631. 



Wood-pecker, 493. 



Wrasse, 887. 



Wry-neck, 493. 



Xanthidia, 69. 



Xiphosura, 208; cliaraatcrs of, 221; dis- 

 tribution of, in time, 234. 

 Jj/toWits, 248. 

 Xylophaga^ 308. 



Zebba, 555. 



Zeualodon, 613. 



Ziphius, 613. 



Zoantharia, 116; Malacodermata, 117, 



129, 134; Sclerobasica, 119, 122, \S»; 



Sclerodermata, 122, 123, 130, ISA 

 ZoarUhidce, 119. 

 Zoamthus, 119. 

 Zoea, 218, 227, 228, 231, 23S. 

 Zoniten, 337. 

 ZoSid, 82. 



Zoology, definition of, 1. 

 Eootoca, 439. 



