INDKX. 



Abyla, 149. 

 Acaharia, 182 

 Acalepbae. 156. 

 Acanella, 182. 

 Acantliaria, 23. 

 Acanthascus. 92. 

 Acantbastraea, 196. 

 Acanthella, 96, 133. 

 Acantliiri. 21. 

 Acanthobdella, 449, 512, 



513, .117, 527. 

 Acantliobotlmum, 245, 



259. 



Acanthocepliala, 293. 

 Acanthochiton, 392. 

 Acanthocladium 133. 

 Acanthocotyle, 234. 

 Acantbocystis, 18 19. 

 Acauthodoris, 412. 

 Acanthodrilos 450, 500, 



501, 503, 511. 

 Acanthogorgia, 182. 

 Acanthoisis, 182. 

 Acan thorn etra 21, 23. 

 Acanthonida, 23. 

 Acanthopora 196. 

 Acanthoptilum, 181. 

 Acarnus, 96. 

 Acaulis, 130. 

 Acephala. 320. 

 Acephalocyst. 261. 

 Acera, 405, 406. 

 Acerominyas, 187. 

 Aceros, 223. 

 Achaeta. 509. 

 Acharadria, 130. 

 Achatina, 380. 

 Acholoe, 478. 

 Acicula, 396. 398. 

 Aciculiriae, 97. 

 Acicidites, 94. 

 Aciculum, 460. 

 Acineta. 53. 

 Acinetaria, 26, 51. 

 Acis, 183. 



Acmaea, 394. 

 Acmostomum, 220. 

 Acoela, 211, 218. 

 Acoeta, 478. 

 Acontia, 105. 

 Acotylea, 222. 

 Acrasis, 18. 

 Acraspeda. 156. 

 Acraspedote, 109. 

 Acrohelia. 195. 

 Acrophalli, 278. 

 Acrorhynchus, 220. 

 Actaeon, 361, 364, 372, 



385, 404, 405, 406. 

 Actaeoni'i, 414. 

 Actinauge, 187. 

 Actine, 82. 

 Actinelida, 23. 

 Actineria, 188. 

 Actinerus. 187. 

 Actinia, 187. 

 Actiniaria, 183. 

 Actinidae. 188. 

 Actininae, 187. 

 Actinioides, 187. 

 Actinobolus. 45. 

 Actinocephalus, 59. 

 Actinodendron 188. 

 Actinogonium 130. 

 Actinoloba, 187. 

 Actinoloplius, 19. 

 Actinomonas, 30. 

 Actinophrys, 19. 

 Actinopsis, 188. 

 Actinosphaerium, 19. 

 Acystosporidia, 62. 

 Actinostola, 187. 

 Actinothrix, 187. 

 Actinotricha. 49. 

 Aotinotrocha, 545. 

 Actinozoa, 168. 

 Actimmis 308. 

 Acyclus, 307. 

 Adanisia, 187. 

 Addisonia, 394. 



2 Q 



Adelea, 61. 

 Adelocodonic, 126. 

 Adelocodonic gonopbore, 



120. 



Adeona, 566. 

 Adeonella, 566. 

 Adeorbis. 398. 

 Adineta, 308. 

 Adinida, 34. 

 Adoral row, 40. 

 Adradial, 118. 

 Aegina, 136. 

 Aeginella, 136. 

 Aetea, 564. 

 Aegineta, 136. 

 Aeginodiscus, 136. 

 Aeginodorus, 136. 

 Aeginopsis, 109. 

 Aeginorhodus, 136. 

 Aeginura, 136 

 Aegir, 188. 

 Aegirus, 369, 412. 

 Aegyria, 46. 

 Aeolidioidea, 412. 

 Aeolis, 412. 

 Aeolosonia, 455. 

 Aequorea, 134. 

 Aequoridae, 134. 

 Aethalium, 16. 

 Aetheria, 347. 

 Agalma, 153. 

 Agalmopsis, 153. 

 Agaricia, 196. 

 Agelas, 96. 

 Aglaisma, 149. 

 Aglantba, 135. 

 Aglaophenia, 133. 

 Aglaura, 135. 

 Aglauropsis, 135. 

 Agliscra, 135. 

 Aiptasia, 187. 

 Air-funnel, 150. 

 Al = alimentary. 

 Alaurina, 219. 

 Albertia, 309. 



