Index. 



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, 372, 388. 

 Antennaria, 95. 

 Antennules, 330. 

 Anthaxia, 417. 

 Anthea, 1 14. 

 Anthelia. i IQ. 

 Anthocephalus, 171. 

 Anthocotyle, 174. 

 Anthophora, 4 1 9. 

 Anthomyia, 409. 

 Anthophysa, 55. 

 Antimeres, 1 1. 

 Antipatharia, r i 7. 

 Antipathes, 1 18. 

 Antipathida.% 117. 

 Antlia, 410. 

 Antlion, 391, 405. 

 Ants, 420. 

 Anunca, 197. 

 Anus, 30. 

 Aonis, 224. 

 Apate,4i7. 

 Aphaniptcra, 407. 

 Aphantocheilus, 374. 

 Aph..- 101. 



Aphidicbe, 398. 

 Aphides, 3X3. 



39 '. 



"8. 



Aphro- 

 Aphrodite, 



400. 



' '<> 



Apical areas, 107. 

 , 106. 



Apis, 419. 



Aplidium, 234, 241. 



Aplysia, 221, 289, 290, 305. 



Aplysiidre, 305. 



Aplysina, 76. 



Aplustridoe, 306. 



Apneumona, 152. 



Apneusta, 290. 



Apoda, 345. 



Apoderus, 417. 



Apolemia, 99, 100. 



Apolemiadce, loo. 



Aporosa, 1 1 6. 



Aporus, 419. 



Aporrhais, 308. 



Appendicularia, 231. 232, 2^4, 235 



238. 



Appendicnlariidae, 239. 

 Aprocta, 161. 

 Apsilus, igS. 

 Apterus, 411. 

 Apus, 330, 338, 350. 

 Aquiferous pores, 320. 

 Arachnactis, 1 1 4. 

 Arachnidae, 368, 371. 

 Arachnoidea, 46, 363. 

 Arachnopathes, 117. 

 Arachnosphsera, 62. 

 Aradus, 401. 



Aralo-Caspian regio n, 43 

 Araneidae, 374. 

 Araneina, 374. 

 Arbaciidae, 147. 

 Area, 261, 262, 269. 

 Arcaceoe, 269. 

 Arcella, 4, 57. 

 Arcellidre, 57. 

 Archoeodiscus, ^. 

 Archaoostomata, 4^, i 

 Archaster, i 35. 

 Archebiosis, 9. 

 Archer, 50, S7f 59 . 

 Archinauplius, ^60. 

 Arcliitcctuiv of ( '.iiux-lli, 19. 

 An-hitcuthis, 326. 

 Archi/.oca, 360, 370. 

 ' 



|I2. 



>ccan, 44. 



37 ' 

 1 us. 362. 



222. 



' 



Arcni> 



