INDEX. 



659 



DactyUthra, 416. 

 Dactylopterus, 369. 

 Dafila, 379. 

 Dakosmirus, 445. 

 Dama, 564. 

 Daphnia, 21 S. 

 Darwinian Theory, 40, 

 Dasj/podidoB, 637, 539. 

 Daiyprocta. 588. 

 i)iisyp«s, 639. 

 Sasyurug, 636. 



Decapoda, {Crustacea), 227 ; distribution 

 of. In time, 234; {Ceplialopoda), 328, 



Decollated shells, 278. 



Deer, 661, 663 664. 



DeiTwsauria (see Dvnosauria). 



Deinothenum, 569, 672, 615. 



DelphinidcB, 549, 551, 



Dehhinuta, 318. 



Belphinits, 550. 



Demodex, 241. 



Deiidrocozla, 174. 



Dendrograpms, 111, IIS. 



Dendrolagus, 532. 



DendrophylUa, 121. 



Dendrostyles, 109. 



Dental formula, 618. 



Dentalidx, 314, 318. 



Deniaiina, 55. 



Dentalium, 318 ; shell of, 311 ; position 

 of, 318. 



Dentirostres, 490, 498. 



Development, 34 ; Retrograde, 85 ; of 

 Gregarinidoe, il ; of Foramin'^era, 55; 

 of Hydra, 85; of Corj/nidff, 89; of 

 Sertularida, 92; oi Calycophoridce, 95; 

 of Physophoridce, 98 ; of Medusidce, 

 103 ; of Lucemarida, 106, 107 , of .4c- 

 tinidce, 118 ; of P^ewo&racAirt, 132 ; of 

 .ScAmof^^rmafa, 142 - 144 : of JSch-m- 

 Oldea, 144 ; of .l^teroztlea, 152 , of 

 Ophiuroidea, 154 ; of CtmwitiiZa, 158 ; 

 of Holothuroidea, 160 ; of Tceniada, 

 167-170 ; of Trematoda, 172 ; of Numer- 

 tida, 175 ; of Acemthocephala, 176 ; of 

 Trichina, 178; of tlie Guinea -Worm, 

 178 ; of Tubioolar Annelldes, 193 ; of 

 Errant Annelides. 196; of Crustacea, 

 202; ot Jchthyophthira, 209; ot Rhiza- 

 cephala, 210; of Cirripadia, 211; of 

 Citpepoda, 217 ; of Ostracoda, 216 ; of 

 PhyUopoda, 218; of TriloMta, 220; of 

 Idmwlua, 222 ; of Isopoda, 226 ; of .4 m- 

 phlpoda, 224.; of SfojjMtjJodo, 227; of 

 JJ'acrura, 228 ; of .47M)mttr«, 221 ; of 

 Brachyura, 232 ; of Myriapoda, 246 ; 

 of Insec'a, 254, 2.55, 256 ; of Polyzoa, 

 286 ; of Tunicata, 290 ; of BracMopoda, 

 295 : of LnmcUibranchiata, 304 ; of 

 Gasteropoda, 3U ; of .47repAiI>i«, 406- 

 408. 



Dcxtral shells, 278. 



Dibranchiaia (Cephalopoda), 327; cha- 

 racters of, 327 ; divisions of, 328 ; dis- 

 tribution of, in time, 338. 



DieeraSi.SOS. 



Dicorj/n£, 89. 



Dicotyles, 557, 618. 

 Vieranograpsua, 113. 

 'J)lctyoiiem<i, 113. 



Dteynodon, 448. 



Vicynodontia, 44S. 

 DiMlphia, 523, 529. 

 Videlphidis, 629, 635. 

 J)idetphys, 529, 535, CIO. 

 jyidunculust ^92. 

 i)u2t», 491. 

 Didymograpsus, 118. 

 IHfflv^ia, 51. 

 Di^ittgrada, 674, 680, 

 i)t7»ii>rpAoiJOTi, 460. 

 Bvmyaria, 305. 

 Binophis, 435. 

 Dinomis, 507, 508. 

 Binosamria, 450, 451. 

 Biomedea, 477. 

 ■ Biphydte, 96. 



Biphyllidia, 319. 



DiphyozoOids, 95. 



Biplacanthiis, 403. 



Biplodonta, 307. 



Biplograpsus, 112, 113. 



XHplo8tom/u/m, 173. 



Bipnoi, 390, 403; general characters ot 

 399401. 



Bipodidce, 590. 



DiprotDctom, 611. 



Biptera, 252, 266 ; mouth of, 252 ; char- 

 acters of, 264. 



Dtjptenta, 403. 



Bipus, 591. 



Biscina, 297, 293. 



Biseinidae, 295, 297. 



Biecophora {Medusae), 83 ; characters of, 

 100-103. 



Diseophora (Leeches) — see Hirudvnea. 



Dissepiments of Corals, 123. 



Distal, 81. 



DtsfoTiMi, 172, 173. 



Distribution, geographical, 40 ; bathy- 

 metrical, 41 ; geological, 42. 



Bithyroearis, 234. 



Dodo, 491, 492, 508. 



Dog, 616, 682, 583. 



DoK-nshes, 397. 



Bolabella, 319. 



Boliolum, 290. 



Dolphins, 510, 514, 521, 544, 549, 550, 613, 



jDonaa:, 307. 



Borcatherium, 614. 



Boridce, 314, 319. 



Doris, 315, 319. 



Dormice, 591. 



Dorsal vessel, of Insects, 253. 



Borsibranchiata, 195 (see Errantia). 



Draco, 441, 450. 



Bracunculits, 178. 



Breissena, 306. 



Dromaius, 486. 



Dromaiftcnwft, 609. 



Dromedaiy, 561. 



Brmnia, 231. 



BryopUhccus, 617. 



Duck, 47), 479. 



Duck-mol% 511, 512, 517, 620, 623, 627, 

 628. 



Dugong, 510, 524, 542, 543. 

 Bytiscidce, 257. 



ExntE, 503. 



Ecderon, 114. 



Echidna, 512, 617, 621, 521, 624, 628, 629. 



