Index. 



425 



Animal, characters of, 24, 

 Anisoscelis, 402. 

 Anisodactylus, 416. 

 Annelida, 209. 

 Annulata, 154. 

 Annuloida, 126. 

 Anobium, 418. 

 Anochanus, 146. 

 Anocelis, 160. 

 Anodonta, 269. 

 Anomia, 259, 260, 262, 263. 

 Anomiadae, 268. 

 Anomoura, 338, 358. 

 Anopla, 163. 



Anoplosomatum, 182, 193. 

 Antalis, 275. 

 Antarctic ocean, 44. 

 Antartic region, 42. 

 Antedon, 131. 



Antenna, 194, 330, 332, 388. 

 Antennaria, 95. 

 Antennules, 330. 

 Anthaxia, 417. 

 Anthea, 114. 

 Anthelia, 119. 

 Anthocephalus, 171. 

 Anthocotyle, 174. 

 Anthophora, 419. 

 Anthomyia, 409. 

 Anthophysa, 55. 

 Antimeres, 1 1. 

 Antipatharia, 1 1 7. 

 Antipathes, 118. 

 Antipathida;, 117. 

 Antlia, 410. 

 Antlion, 391, 405. 

 Ants, 420. 

 Anursea, 197. 

 Anus, 30. 

 Aonis, 224. 

 Apate, 417. 

 Aphaniptera, 407. 

 Aphantocheilus, 374. 

 Aphar}Tigeidse, 161. 

 Aphididae, 398. 

 Aphides, 383. 

 Aphis, 391. 

 ApLrocallistes, 78. 

 Aphroditidse, 219. 

 Aphrodite, 220. 

 Aphrophora, 400. 

 Apiariae, 419. 

 Apical areas, 107. 

 Apical pores, 106. 



Apis, 419. 



Aplidium, 234, 241. 



Aplysia, 221, 289, 290, 305. 



Aplysiidae, 305. 



Aplysina, 76. 



Aplustridae, 306. 



Apneumona, 152. 



Apneusta, 290. 



Apoda, 345. 



Apoderus, 417. 



Apolemia, 99, 100. 



Apolcmiadae, loo. 



Aporosa, 1 16. 



Aporus, 419. 



Aporrhais, 308. 



Appendicularia, 231, 232, 234, 231;, 



2j8. 



Appendiculariidse, 239. 

 Aprocta, 161. 

 Apsilus, 19S. 

 Apterus, 411. 

 Apus, 330, 338, 350. 

 Aquiferous pores, 320. 

 Arachnactis, 114. 

 Arachnidae, 368, 371. 

 Arachnoidea, 46, 363. 

 Arachnopathes, 117. 

 Arachnosphaera, 62. 

 Aradus, 401. 



Aralo-Caspian regio n, 43 

 Araneidae, 374. 

 Araneina, 374. 

 Arbaciidae, 147. 

 Area, 261, 262, 269. 

 Arcaceae, 269. 

 Arcella, 4, 57. 

 Arcellidae, 57. 

 Archaeodiscus, 55. 

 Archaeostomata, 48, 155. 

 Archaster, 135. 

 Archebiosis, 9. 

 Archer, 50, $7, 59. 

 Archinauplius, 360. 

 Architecture of Cancelli, 19. 

 Architeuthis, 326. 

 Archizoea, 360, 370. 

 Arcidae, 269. 

 Arctia, 412. 

 Arctic ocean, 44. 

 Artisca, 371. 

 Arcturus, 362. 

 Arenicola, 222. 

 Arenicolidae, 222. 

 Arenicolites, 47. 



