682 



INDEX. 



Acalcplia;, 157. 188. 

 Acanthocephala, 58.91. 118. 

 Acarus foUiculorum, 445. 

 Accplialocyst, 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 



Annulata, 230 — 233. 



Arachnida, 452, 453. 



Berbe, 72. 



Bracliiopoda, 493. 



Bryozoa, 149. 



Cephalopoda, 622. 



Cin-ipedia, 282. 



Crustacea, 315, 316. 



Diplostoma, 84. 



Distoma, 81 — 83. 



Echinodenna, 196. 205. 209. 



Epizoa, 272. 



Gastropoda, 555 — 558. 



Insecta, 375 — 379. 



Lamellibranchiata, 504. 506. 



Pteropoda, 537. 



Tunicata, 474. 476. 482. 483. 

 Alternate generation (sec Partheno- 

 genesis). 

 Amazon ants, 429. 

 Ametabola, 346. 

 Ammonites, 596. 

 Amphipoda, 344. 

 Anaima, 11. 

 Anatomical distinction between pliiuts 



and animals, 3. 

 Androgynous organs of 



Annulata, 254 — 256. 



Bothriocephalus, 71. 



Cirripedia, 283 — 286. 



Distoma, 82. 84. 



Gastropoda, 561 — 563. 



Pteropoda, 537. 539. 

 Taenia;, 69. 

 Anellides, 11. 14. 225—265. 

 Animals, classes of, 16. 

 Animal Kingdom, tabular view of, 16. 

 Primary division of, 12. Distinction 

 from vegetable, 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 generation of, 409. As- 

 tonishing fecundity of virgin females, 

 414. Ordinary generation of, 409. 414. 

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

 Aplysia, 549. 557. 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. 

 Anns of Cephalopods, 609 — 613. 

 Articulata, 13. 16. 225. 

 Arctiscon, 55. See Macrobiotus. 

 Ascaris acuminata, 113. 



lumbricoides, 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 margaritifera, 518. 



