f>4S 



COMPARATIVE ANATOMY 



Amphitrite, 182 



Anachceta, 1S1 



Analges, 510 



Anceidce, 295 



Anchorella, 291 



Anchylostoma, ISO 



Androctonus, 509 



Anemonia, 71 



Anguilhda aceti, 178 



Anilocra, 295 ; pleopoda, 324 



Anisopoda, 293 



Anisospore, 20 



Annulata (Annelida), 180; diagram of 

 pharynx, 202, 203 ; section, 237 



Anomura, 29S 



Anonymus, 133 



Antennata, 438-508 



Anthea cereus, 50 



Anthemodes, 70 



Anthomedusce, 68 



Anthopliora, 492 



Anthozoa, 70 



Antipatharia, 71 



Aphaniptera, 441 



Aphunonettra, 1S1 



Aphidce, 440 



Aphis pelargonii, tracheal system, 481 



Aphroditea, 182 



Aphrophora, 441 



Apidce, 443 



Apis melifica, anatomy, 462, 463 ; sexual 

 organs, 487 



Aplysina, 62 



Apoda, 292 



Apolemia, 70 



Apneustic tracheal system, 481 



Apseudes, 293 ; auditory hair, 356 ; thor- 

 acic limbs, 318 



Apseudes Latreillii nervous system, 346 



Apterygota, 439 



Apus, 288 ; section, 315 ; larvae, 383 

 ,, longicaudatus, trunk feet, 316 

 ,, lucasanus, mandibles, 311 



Arachnoidea, 509-543 



Araneidce, 510 ; book-leaf tracheae, 530 ; 

 sexual organs, 533 



Arcella, 4 



vulgaris, 3 



Archceostraca, 293 



Archenteron, 37 



Archiannelida, 1S1 



Archigetes, 134 



Arenicolidce, 182 



Argas, 510 



Argiope, 185 ; larva, 273 



Argulidce, 291 



Argulus, 291 



Corregoni nervous system, 346 

 foliaceus, 291 



Argyroneta, 510 



Ariciidai, 182 



Arthrobranchise, 328 



Arthropoda, 287-545 



Arthrostraca, 293; thoracic limbs, 318 



Articulata, 287 



Asaphus, 415 



Ascandra, 60 



Ascaridce, 180 ; section, 194 



Ascaris lumbricoides, 180 ; genital appara- 

 tus, 255 

 ,, nigrovenosa, 179 



Ascones, 62 



A sell idee, 295 ; thoracic limbs, 318 



A sellus aquations, enteric canal, 340; geni- 

 tal apparatus, 374 ; nervous system, 346 



A si I idee, 443 



Aspidiotus, 440 



Aspidogaster, 143 



Asplancha, 185 



Astacidce, 298 



Astacus fluviatilis, 298, 298, 299 ; 2d 

 antenna?, 310 ; autennules, 308 ; anterior 

 maxillae, 312 ; cephalo-thorax, 326 ; for- 

 ceps, 335 ; gills, 327 ; mandibles, 311 ; 

 muscles, 334 ; nervous system, 346 ; 

 ontogeny, 399-406 ; pleopoda, 324 ; pos- 

 terior maxillae, 313 ; sections, 338, 365 ; 

 segments, 333 ; sexual organs, 375 ; 

 thoracic feet, 323 



Asterias glacialis, eggs, 31, 33 



Aster ope, 182 



Astrcea, 71 



Astr aides, 71 



A tax, 510 



A tractonema, 200 



Atractosoma, 438 



Attus, 510 



Atypus, 510 



Aulactinium, 7 



,, adinastrum, 1 



Aulosphcera, 7 



Aulostomiim, 181 



Auralia, 70 



Aurelia aurita, 72 ; development of, 130 



Auronecta, 70 



Aurophore, 70 



Autolytus, 182 



Avicularia, 510 



Aviciilaria, 267 



Axolotl, 119 



Axopodia, 14 



BACILLUS, 439 



Baetis binoculatus, segment, 483 



Balanidce, 292 



Balanoglossus, 119 



Balantidium, 9 



Balanus, 292 



Hameri, 303 



,, perforatus, trunk feet, 316 



tintinabidum, 304 

 Bdellidce, 510 

 Belinurus, 417 

 Beroidce, 72 

 Bibionidce, 443 

 Biogenesis, 118 



