INDEX. 



Abdominalta, 260. 

 Abiognesis, 38. 

 Abiological sciences, 9. 

 Acanthobde'.la, 1S9. 

 Acanthocephala, 55?, 5TT. 

 Acanthoteuthis, 465. 

 Acarina. 329. 

 Achetidse, 378. 

 Achtheres, 241. 

 Acineta mystacina, 94. 

 Acinet£e, 89. 93, 94, 99-101. 

 AcrididiB, 37S. 

 Actinia, 5:3, 140, 141, 151. 



holsatica, 139. 



Actinidae, 140,141, 145. 



Actinophrys, 83, 80, 93. 



Actinosphaerium Kichhom i, S3, 85. 



Actinozoa, 55, 110, 137, 14u, 1 19, 150. 



Actinula, 132. 



uEglnidae, 136. 



^thalium septicum, 13, 



jfitiology, 16, 37. 



Agamogenesis, 31, 34, 383. 



Aglaophenia (Plumularidae), 120. 



Air-breathing Arthropoda, 320. 



Alaurina, 157. 



Albertia, 170. 



Alcippe lampas, 201. 



Alcyonium, 143. 



Alectoromorph.T, 69. 



Alarae, 14, 20, 32. 97. 



Alimentary apparatus, 56. 



Allantoic, 67. 



Alternation of generations, 36, 6T. 



Ambulacral vessels, 54. 



Ametabola. 361. 



Amtnonitidae. 459. 



Ammothea pycnogonoides, 332. 



Amnion, 67. 



Amoeba radiosa, 8^). 



sphaerococcus. 86. 



Amcebse, 13, S6, 103. 

 Amouroucium prolifernm, 526. 

 Amphibia, 53, 59, 64, 70, 86. 

 Amphidiscus, 108. 



Amphidotus cordatus, 491. 

 Amphioxus, 57, 59. 

 Amphipoda, 313. 

 Amphithoe, 311. 

 AmpuUaria, 60. 

 Anatomy. 16, 17. 

 Anenterbus invertebrates, 577. 

 Anguillula brevispinus, 545. 



scandens, 550. 



Animals, characters, 44: morphology, 4T; 



physiology, 54 ; natural orders, 562. 

 Anisonema, 90. 

 Annelida, 50, 51, 66. 164. 171, 193, 206, 20T, 



212, 219, 416, 575. 580, 5b6. 

 Annuloid series, 5S0. 

 Annulose differentiation, 59. 

 Anodonta, 407. 408, 412, 416. 417. 

 Anoraia. 411, 417. 

 Anomura. 293, 294. 

 Anthophysa, 90. 

 Antinoptirys Eichhornii, 13. 

 Antipatbidae, 14.\ 146. 

 Aphis, 36. .37. 3S0-884. 



pelargonii. 364. 



Aphroditidas, 210. 



Apoda, 260. 



Aporosa. 146, 147, 150, 153. 



Appendages, 20. 



Appendicularia, 53, 510-518, 576. 



flabellum, 511. 



Aprocta, 158. 



Aptychus, 459, 460. 



Apus, 220, 223, 226. 242-245. 



cancriformis, 243. 



glaciali<5. 245, 



Arachnida. 59, 221, 224, 320, 573. 



Araneina, 326. 



Area. 417. 



Arcella, 86. 



Arcti?ca, 334. 



Argonauta argo, 461, 462. 



Argulus, 241. 



" Aristotle's lantern," 492. 



Arthrojastra, 320. 



Arthropoda. 21, 32, 36. 52. 53, 57, 64, 66, 198, 



206, 219-225, 320, 573, 574, 580, 586. 

 Artlirozoic series, 580, 



