INDEX 



References to Figures in Clarendon type. 



Acalephae, 101-106 



Acanthia, 242 



Acanthias, 294 



Acanthobdella, 157 



Achromatin, 3 



Aciculum, 145 



Acineta, 75 



Acinetaria, 74 



Acipenser, 371 



" Acquired " characters, 194 



Actinophrys, 30 



Actinopoda, 28 



Actinopterygian, 365 



Actinosphaerium, 28-30, 29 



Actinozoa, 115 



Adamsia, 112 



Afferent nerves, 97 



Agglutination, 5 



Air-bladder, 355-358, 366, 367, 376 



Air-capillaries, 431 



Air-sacs, 430 



Agriculture, amoebae in, 17 



Ague, 5o 



Albumen, 456 



Alcyonaria, no 



AUyoniwm, ro6-iio, 107, 108 



Alimentary canal, 85, 129 



AUantois, 409, 466, 467 



Alternation of generations, 24, 99 



Ambulacrum, 282 



Amia, 371 



Ammocoetes, 396 (foot-note) 



Amnion, 419, 461, 463 



Amoeba, 1-18, 2, 6, 8, 10 



Amoebaea, 18 



Amoebic dysentery, 15 



Amoebocytes, 86 



Amoeboid movement, 3, r2 



Amoebula, 55 



Amphicoelous, 316 



Amphioxus, 392 



development, 449 

 Ampulla, 286 

 Anabolism, 13 

 Anadromous, 362 



Analogy, 143 



Anatomy, 11 



Ancylostoma, 200, 201, 202 



Annelida, 158 



Annulus, 153 



Anodonta, 269 



Anopheles, 59, 247 



Antenna, 226 



Antennule, 226 



Anthomedusa, roo 



Ants, 244, 245 



Anus, 131 



Aphides, 241 



Aphrodita, 147 



Appendages (arthropoda), 216-230 



Aptera, 241 



Arcella, 18 



Archenteron, ro4 



Archinephric duct, 307 



Archinephros, 307 



Archipterygium, 379 



Arenicola, 148 



Aristotle's lantern, 285 



Arteries, 322, 425, 433, 442, 465 



Arthropoda, 209 



Ascaris, lyii-igy, 179, 199 



Ascon, 118, 119 



Asexual reproduction, 24 



Association, 54 



Astacus, 224 



Asterias, 282 



Astroides, irs 



Atrium, 394 



Auditory capsule, 3r7 



ossicles, 445 

 Aulostoma, 157 

 Aurelia, 101-106, 102, 104 

 Auto-infection, 58 

 Autolytus, 147 

 Autostylic skull, 349 



Babesia, 64 

 Barnacles, 265 

 Basal granule, 35, 43 

 plate, 296 



477 



