INDEX 
VOL. VI. 
-♦- 
Abraxas, 116. 
Acanthechinus, 277. 
Acanthiidac, 190. 
Acanthocephali, 448. 
Acanthocercus, 284. 
Acanthocinus, 154. 
Acanthocystis, 560. 
Acanthodoris, 354, 355. 
Acanthosoma, 188. 
Acari, 241. 
A carina, 242. 
Accra, 362. 
Achseta, 444. 
Achatina, 348. 
Achatinellidae, 348. 
Acherontia, 96. 
Acineta, 568. 
Acmaea, 397. 
Acmaeidse, 397. 
Acridiidse, 179. 
Acrocinus, 154. 
Actaca, 256. 
Acteeon, 361. 
Actinia, 500, 501. 
Actinocrinus, 301. 
Actinometra, 300. 
Actinomma, 562. 
Actinophrys, 560. 
Admete, 372. 
^Egirus, 355. 
AEolidia, 356, 358. 
yEolidiidac, 358. 
yEptasia, 500. 
AEquipalpa, 162. 
AEschnidse, 168. 
AEtheria, 410. 
sEthcriidse,, 410. 
A galena, 229. 
Agalenidee, 229. 
Agaristidee, 111. 
Agate-Snail, 348. 
Agassizocrinus, 299 
Agclecrinus, 295. 
Agrionidse, 169. 
Agriotes, 144. 
Albertia, 446. 
Alcyonium, 512. 
Alder-Flies, 163. 
Alipes, 207. 
Allurus, 439. 
Allolobophora, 439. 
Alphcidse, 270. 
Amaltliea, 390. 
Amaurobiidee, 230. 
Amaurobius, 230. 
Amber-Snails, 348. 
Amblypygi, 219. 
Amoeba, 552. 
Ammonites, 340. 
Ammonoidea, 340. 
Amphiora, 308. 
Amphibola, 352. 
Amphibolidse, 364. 
Amphicora, 438. 
Amphineura, 398. 
Amphipoda, 277. 
Amphithoe, 278. 
Amphitretus, 331. 
Ampullaria, 389. 
Ampullariidae, 3S9. 
Anatina, 418. 
Anartiostigma, 205. 
Anatinacea, 417. 
Ancilla, 373. 
Ancistroteuthis, 337. 
Ancula, 355. 
Ancylus, 350. 
Andania, 277. 
Andrena, 42. 
Andrenidse, 42. 
Anemonia, 500. 
Anguillula, 449. 
Animalcules, 553. 
Annelida, 432. 
Anobium, 146. 
Anodonta, 411. 
Anoviia, 404. 
Anomiidse, 404. 
Anomura, 261. 
Anoplodium, 470. 
Antedon, 299, 301. 
Antheraea, 93. 
Anthobranchiata, 354. 
Anthocotyle, 466. 
Antliomyinsc, 71. 
Anthonomus, 150. 
Anthophora, 44. 
Anthozoa, 495. 
Anthrax, 60. 
Anthrenus, 140. 
Anthribidse, 152. 
Antipatharia, 510. 
Antipathes, 510. 
Ant-Lions, 165. 
Ants, 27. 
Apatura, 87. 
Aphaniptera, 75. 
Aphidse, 196. 
Aphis, 196. 
Aphodius, 142. 
Aphrodite, 433. 
Aphrophora, 195. 
Apidas, 45. 
Apiocrinus, 298. 
Apion, 149. 
Apis, 45. 
Aplacopliora, 399. 
Aplysia, 363. 
Aplysiidse, 363. 
Apodcrus, 150. 
Apodidw, 285. 
Aporia, 92. 
Aporrhaiidse, 385. 
Aporrhais, 385. 
Apus, 285. 
Arachnida, 204, 213. 
Arachnocystis, 297. 
Aradus, 190. 
Aranese, 220. 
Araschnia, 86. 
Arbelidse, 103. 
Area, 405. 
Arcclla, 553. 
Architeuthis, 334. 
Arcidae, 404. 
Arctia, 111. 
Arctiidae, 111. 
Arcturidae, 273. 
Arenia, 436. 
Arenicola, 435. 
Argiopidae, 231. 
Argonanta, 331. 
Arguhis, 283. 
Argynnis, 84. 
Argyroneta, 229. 
Argyronetidae, 229- 
Arion, 345. 
Arionidae, 345. 
Aristocystis, 296. 
Ark-Shells, 404. 
Armadillidium, 276. 
Aromia, 153. 
Army-Worm, 55. 
Arrow-Worms, 456. 
Artemia, 286. 
Arthrolycosa, 221. 
Arthropoda, 3. 
Artiostigma, 205. 
Aryas, 244. 
Ascaris, 452. 
Ascetta, 546. 
Asellota, 275. 
Asellus, 275. 
Asilidse, 59. 
Asilus, 60. 
