66o 



INDEX. 



Ecliinidce, 150. 



Echinococci, 171. 



JBchmoconidts, 150. 



JSchinod&rmata, 141 ; general characters 



of, i42j development of, 143; divisinns 



of, 144; distribution of, in time, 163- 



165. 

 Echinodon, 441. 

 Echinoidea, 143 ; characters of, 144-150 ; 



test of, 144 ; ambulacral system of, 147 ; 



digestive system of, 14S ; families of, 



160; distribution of, in space, 162; In 



time, 164. 

 EchinoneidcB, 150. 

 Echinorhynchus, 176. 

 Echinozoa, 141 (see Annuloidd). 

 Echmus, 146, 147, 148. 

 Echiurus, 186. 

 Ectocyst, 282. 

 Ectoderm, 79, 114. 

 Ectosarc, 50. 

 Edaphodm, 397, 405. 

 Edentata, 613, 620, 522, 524 ; general 



characters of, 537 ; distribution of, iu 



time, 611. 

 Edjruyphthalmata, 208; characters and 



divisions of, 223. 

 Elagmohranchii, characters of, 394, 395 ; 



divisions of, 396 ; position of, in tlie 



scale of Fishes, 399; distribution of, in 



time, 404. 

 Elamwdus, 397, 405. 

 Eledone, 335. 

 Elephant, 614, 620, 625. 

 Elepliant-shrew, 697. 

 Elephas, 670, 671, 615. 

 Elysia, 319. 

 Elysiada, 315, S19. 

 Elytra, of Aphrodite, 185 : of CoUoptera, 



260, 271. 

 Emarginula, 318. 

 Emeu, 486. 

 Emydidce, 427, 423. 

 Emys, 427. 

 Enaliosauria, 446. 

 EnalloBtega, 57. 

 Encephala (MoUusca'), 300, 308. 

 Encrinus, 163. 

 Enderon, 114. 

 Endocyst, 282, 283. 

 Endoderm, 79, 114. 

 Endopodite, 204. 

 Bndosarc, 50. 

 Bndostyle, 289. 



Enhydra, 681. ♦■ 



Ento7no8tef/a, 57. 

 Entomoatraca, 208 : characters of, 215 ; 



divisions of, 215. 

 Entosolenia, 55. 

 Hntozoa, 166. 

 EocyBtitBB, 164. 

 EoBourus, 446. 

 Eozoon, 69. 

 Ephemend<e, 261. 

 Ephyra, 107. 



Epidermis (of the shell of Moltusca), 278. 

 Epimera, 203. 

 Epipodite, 206. 

 Epipodium, 309 ; of Pteropoda, 320 ; of 



Cephalopoda, 323. 

 Epistema, 204. 

 Epistome, 284, 286. 



Epistylie, 74. 



Epizoa, 207 ; characters of, 208. 



Equidce, 565. 



Eqims, 555, 613. 



Erethizon, 689. 



EHchthys, 227. 



Erinaceidte, 697. 



Ermaceus, 597. 



Errantia, 189 ; characters of, 194 ; g»m. 



mation of, 196 ; development of, 196 ; 



distribution of, iu time, 197. 

 EmdAe, 385. 

 Eiidendrium, 89. 

 Engereon, 273. 

 Euliina, 317. 

 Eunice, 197. 

 Eunicea, 197. 

 Euomphaltts, 318. 

 Euplectella, 68. 

 EupsamviidoB, 140. 

 Euryale, 164. 

 Eurypterida, 223 ; distribution of. In 



time, 234. 

 Ewrypterue, 234. 

 Exoccetus, 369. 

 Exopodite, 204. 

 Extracrinus, 163. 



Facial Suture of Triloliiles, 220. 



Falconidce, 603. 



Favositidee, 139. 



Favospongia, 68. 



Feathei-s (stnicture of), 454. 456. 



Feather-star, 157. 



Felidce, 513, 683, 685. 



#e!is, 684, 6S5. 



Fenestella, 298. 



jFerce, 573. 



Fiber, 589. 



Field-bug, 259. 



Filaria, 178. 



File-flshes, 388. 



Finches, 497, 498. 



Finner-whales, 548. 



Firola, 319. 



FiroliOcB, 316, 319. 



Fissilinguia, 436. 



Fission, 25, 27; of corals, 124. 



Fissiroitres, 496, 600. 



'FisnureUa, 318. 



7^i5s«re?Zid«B, 314, 318. 



Flagella, 45, 76. 



FlageUata (Infusoria), 70, 76. 



Flamingo, 479. 



Elat-fishes, 364, 386, 398. 



Flints, origin of, 69. 



Float of Physophmidce, 97. 



Flosctdaria, ISO, 183. 



Flukes (Suctorial worms), 171. 



Flustra, 9, 26, 283. 



Flying-Dragon, 441. 



Flying-Lemur, 598. 



Flying-Squirrel, 591. 



Pood of animals and plants, 10. 



Food-vacnoles, 60, 71, 75. 



Foot, of Jioiiirero, JSl; oi LamelUbran-- 



chiata, 304 ; ' of Gasteropoda, 309 ; of 



Heteropoda, 315 ; of Pteropoda, 320 ; 



of Cephalopoda, 323. 

 Foot-jaws, of Lobster, 206; of Centipedes 



246. 

 Forammifera, 3, 26, 46, 5S ; saroode of. 



