682 



INDEX. 



Acalephw, 157. 188. 

 Acanthocephala, 58. 91. 118. 

 Acarus foUiculorum, 445. 

 Acepbalocyst, 59. 61. 

 Acephalous Mollusca, 471. 

 Acetabula of Cephalopods, 611. 

 Acrita, 15. 

 Adheres, 272 — 275. 

 Actinia, 134. 

 Actinocyclus, 20. 

 Akera, 551. 

 Alcyonidium, 136. 

 Alcyonium, 136. 

 Alimentary canal of 



Annixlata, 230—233. 



Arachnida, 452, 453. 



Beroe, 72. 



Brachiopoda, 493. 



Bryozoa, 149. 



Cephalopoda, 622, 



Cin-ipedia, 282. 



Crustacea, 315, 316. 



Diplostoma, 84. 



Distoma, 81 — 83. 



Echinoderma, 196. 205, 209. 



Epizoa, 272, 



Gastropoda, 555 — 558. 



Insecta, 375 — 379. 



Lamellibranchiata, 504. 506. 



Pteropoda, 537. 



Tunicata, 474. 476. 482. 483. 

 Alternate generation (see Partheno- 

 genesis). 

 Amazon ants, 429. 

 Ametabola, 346. 

 Ammonites, 596. 

 Amphipoda, 344. 

 Anaima, 11. 

 Anatomical distinction between plants 



and animals, 3. 

 Androgynous orgaris of 



Annulata, 254—256. 



Bothriocephalus, 7 1 . 



Cin-ipedia, 283—286. 



Distoma, 82, 84. 



Gastropoda, 561—563. 



Pteropoda, 537. 539. 

 Taniffi, 69. 

 Anellides, 11. 14. 225—265. 

 Animals, classes of, 16. 

 Animal Kingdom, tabular vicAV of, 16. 

 Primary division of, 12. Distinction 

 from Ycgetable, 2. 8. 

 Animal matter preserved from loss by 



Polygastria, 36. 

 Annulata, 225. Orders of, 265. 

 Anodon, marsupial gills of, 52. Ova 



of, 523. 

 Antennae of 



Anellides, 227. 

 Cirripedia, 289. 

 Crustacea, 300. 

 Epizoa, 269. 

 Insects, 348. 368. 

 Anthozoa, 134. 156. 

 Ants, 429. 



Aphaniptera, 347. 440. 

 Aphides, larval genei-ation of, 409. As- 

 tonishing fecundity of virgin females, 

 414. Ordinary generation of, 409. 414. 

 Aphrodita, 226. 232. 233. 246. 263. 

 Aplysia, 549. 657. 559. 567. 

 Aptera, 347. 353. 440. 

 Arachnida, 442. Comparison with in- 

 sects, 443. 

 Aranea, 448. 465. 

 Arenicola, 231, 232, 238. 240. 261. 

 Argonauta, 178. 605. 628. Male of, 630. 

 Arms of Cephalopods, 609—613. 

 Articulata, 13. 16. 225. 

 Arctiscon, 55. See Macrobiotus. 

 Ascaris acuminata, 113. 



lumbricoidcs, 98. 102. 

 vermicularis, 99. 109. 

 Ascidians, 13. 471.473. Compound, 475. 

 Astacus fluviatilis, 302. 306. 327. 336. 



marinus, 300. 306. 318. 

 Asterias, 14. 191. 193. 195. 213. 

 Asteroidea, 190. 224, 

 Athalia, 398. 

 Atoll, 139. 141. 142. 

 Avicula margaritifcra, 518. 



