594 



Albumen glands of Oli- 

 gochaeta, 505. 



Alcinoe, 208. 



Alciopa, 479. 



Aloiopina, 479. 



Alcyonacea, 178. 



Alcyonaria, 175. 



Alcyonella, 568. 



Alcyonidium, 556, 567. 



Alcyonium, 179. 



Alderia, 385, 413. 



Alecto, 566. 



Alectona, 97. 



Alexia, 415. 



Algol, 94. 



Alicia, 187. 



Alitta, 479. 



Allantonema, 277, 290. 



Allmaniella, 478. 



Alloiocela, 220. 



Allolobophora, 503, 512. 



Alloniorphina, 13. 



Allopora, 129. 



Alloposus, 420, 446. 



Allostoinum, 220. 



Alluroides, 508. 



Allnms, 512. 



Alma, 511. 



Alophota, 156. 



Alternation of genera- 

 tions, 121. 



Alvania, 511. 



Alveopora, 197. 



Alwisia, 17. 



Amalthaea, 130, 131. 



Amathia, 567. 



Amaurochaete, 17. 



Amber-snail, 416. 



Ammocharidae, 484. 



Ammodiscus, 13. 



Ammoconidae, 98. 



Arnmonactis, 188. 



Ammonites, 417, 444. 



Ammothea, 179. 



Ammotrypane, 487. 



Amoeba, 11. 



Amoeboidea, 11. 



Amoebosporidia, 69. 



Amoebosporidium, 63. 



Amoebulae, 17. 



Ampharete, 486. 



Amphianthus, 187. 



Amphibdella, 236. 



Amphibleptnla, 95. 



Amphiblestrum, 565. 



Amphibola, 361, 375, 

 414, 415. 



Ampbichaeta, 509. 



Amphichoerus, 219. 



Ampbieodon, 131. 



Amphicora, 491. 



INDEX. 



Amphicorinidae, 490. 

 Amphicoryne, 14. 

 Amphicteis, 486. 

 Ampbictene, 486. 

 Ampbidisc, 92. 

 Amphidiscophora, 92. 

 Amphiglena, 466. 

 Amphihelia, 195. 

 Amphilaphis, 182. 

 Ampbilectus, 96. 

 Amphileptus, 45, 46. 

 Ampbilina, 255, 256. 

 Amphiiiema, 131. 

 Amphilonche, 23. 

 Ampbimonadina, 31. 

 Ampliineura, 352. 

 Amphinoma, 480. 

 Amphipeplea, 415. 

 Ampbiporns, 271. 

 Ampliiporus splendens, 



268. 



Ampliiptyches, 255, 256. 

 Ampbiroa, 149. 

 Amphisia, 49. 

 Ampbisolenia, 35. 

 Amphisphyra, 406. 

 Amphistegina, 15. 

 Amphistomum, 225, 238. 

 Atnphitretus, 446. 

 Amphitrite, 485. 

 Amphitrocha, 475. 

 Ampbius, 97. 

 Amphizonella, 11. 

 Ampboriscns, 90. 

 Ampullaria, :>74. 378, 



380, 395, 396, 399. 

 Anabacia, 196. 

 Anaehaeta, 495, 509. 

 Anacropora, 197. 

 Anaitis, 479. 

 Anal cirri, 49. 

 Anamixilla, 90. 

 Anarthropora, 566. 

 Anatina, 349. 

 Anatinacea, 340, 342, 



349. 



Anatinacea, 328. 

 Ancillaria, 386, 397. 

 Ancistrum, 47. 

 Ancorina. 94. 

 Ancula, 410, 412. 

 Ancylus, 375, 416. 

 Ancyracanthus, 289. 

 Ancyromonas, 30. 

 Andvakiadae. 188. 

 Anemonia, 187. 

 Angela. 156. 

 Anguillula, 281, 291. 

 Anguillulidae. 282. 

 Anguinella, 567. 

 Anisoceras, 480. 



Anisonemina, 31. 

 Anisopleura, 392. 

 Annadrilns, 511. 

 Annelida, 447. 

 Anocelis, 221. 

 Anodonta, 329, 342, 343, 



347. 



Anomalina, 14. 

 Anomia, 321, 330, 331, 



336, 345. 

 Anomiacea, 345. 

 Anoniiidae. 328. 341. 

 Anomocladidae, 95. 

 Anonynms.211,217,223. 

 Anoplia, 95. 

 Anoplocephala, 261. 

 Anoplodinm, 220. 

 Anoplosyllis. 476. 

 Anoplophrya, 47. 

 Antenna Rotifers, 300. 

 Antennularia, 133. 

 Antens, 511. 

 Antbastra, 94. 

 Antbelia, 178. 

 Antbemipbyllia, 194. 

 Anthemodes, 153. 

 Antbeomorpbc, 187. 

 Antliobothriinn. 259. 

 Anthocotyle, 235. 

 Anthogorgia, 182. 

 Antboloba, 187. 

 Anthomastus. 179. 

 Antbomednsae. 130. 

 Anthophysa, 30, 153. 

 Antboplenra, 187. 

 Anthopodium, 178. 

 Anthoptilum. 181. 

 Antbotbela. 182. 

 Antliozoa, 168. 

 Antipatbaria, 190. 

 Antipatbella, 190. 

 Antipathes, 190. 

 Antismdix of Nautilus, 



422. 



Aperture of shell, 361. 

 Apex of shell, 325, 361. 

 Aphanipathes, 190 

 Apbanostomum, 219. 

 Aphodus, 78. 

 Aphrocallistes, 93. 

 Aphrodite 459,465,478. 

 Aphrothoraca, 19. 

 Apiosoma, 63. 

 Aplacopbora, 352. 

 Aplu.strum, 406. 

 Aplysia, 362, 371, 385, 



404, 407. 

 Aplysiella, 407. 

 Aplysilla, 93. 

 Aplysina, 98. 

 Aplysinopsis, 98. 



