5S2 



INDEX 



Amphibia, 513 

 Amptiibiolica, 420 

 Amphicctle, 454 

 Ampliicalias, 52S 

 Amphiiliscs, 205 

 Ampliigonv, i;o 

 Amphilina, 247 

 Ampliiniixis, 140 

 Ampliincura, 315 

 Ampliinuclei, 57 

 Amphioxus, 430 

 Amjihipoda, 3S3 

 Amphiporus, 25S 

 Amjthisbxna, 530 

 Amphistomum, 247 

 Amptiilritc. 276, 27S 

 Atn[)hiuma, 520 

 Amphiura, 20O 

 Amphorida\ 303 

 AmpuUic, 203, 2()2, 47S 



of Lorenzini, 500 

 AmpuUarida;, 3^4 

 Amyda, 527 

 Anabrus, 421 

 Anacanthini, 511 

 Anaconda, 531 

 Anaerobic organisms, 91 

 Anal lin, 462, 497 

 Anallantoidea, 41)0 

 Analogy, 10, 00 

 Analytic species, 141 

 Anamnia, 490 

 Anaptomorphida?, 573 

 Anas, 543 

 Anaspides, 3S2 

 Anaxial animals, 123 

 Anelasma, 373 

 Angiostoma, 531 

 AnguiUida^, 510 

 AnguiUula, 265 

 Anguis, 530 

 Angulare, 549 

 Animalcula, 170 

 Animal organs, go, no 



pole, 133, 142 

 Animals and Plants, i^q 

 Anisom)'aria, 323 

 Anisopofla, 3.S6 

 Ankylostoma, 266 

 Anlage, iii (preface) 

 Annelida, shi) 

 Annulata, 530 

 Anodonta, 324 

 Anolis, q2g 

 Anomodontia, 526 



Anopheles, 190, 430 

 Anoploccphala, 255 

 Anser, 543 

 Anseriformcs, 543 

 Antealer, 593 



spiny, 559 

 Antcdon, 302 

 Antenna", 352 

 AntennuUe, 377 

 Anthcomor|>ha, 225 

 Anthomcdus;e, 217 

 Anthozoa, 224 

 Anthropina, 574 

 Anthropoidea, 574 

 Antilocapra, 569 

 Antilope, 569 

 Antimere, 126 

 Anlipathes, 231 

 Antlers, 569 

 Ant-lion, 422 

 Ants, 417, 426 



white, 419 

 Antrostomus, 544 

 Anura, 520 

 Anurida, 419 

 Aorta, 4S3 

 Aphaniptcra, 431 

 Apes, 573 

 Aphidie, 430 

 Apiaria\ 426 

 Apis, 426 

 Aplacentalia, 558 

 Aplacophora, 316 

 Aplysia, 334 

 Aplysina, 203 

 Apoda, 30S, 374, 519 

 Apodidie, 366 

 Apoph\'sis, 454 

 Aporosa, 231 

 Appcndicularia, 443 

 Appendix, \crmiforni, 554 

 Aprophora, 428 

 Aplenodyles, 543 

 Aptcra, 430 

 Apteria, 534 

 Aptcrygola, 41S 

 Apteryx, 342 

 Apus, 366 

 A[>\Teme, 73 

 Aqueduct, 470 

 Aquila, 544 

 Ara( hnida, 381) 

 Araihnoid membrane, 473 

 Araneina, 3115 

 Arbacia, 50s 



ArccUa, 179 

 Archa?opter\'x, 25, 541 

 Archegony, 127 

 Archencephalon, 46S 

 Archenteron, 94, 146 

 Archianellida, 2 78 

 Archiccele, 145 

 Archigetes, 247, 253 

 Archiptera, 419 

 Archipter\-gium, 464 

 Architeuthis, 347 

 Arcida", ^21, 

 Arcifera, 520 

 Arciferous, 513 

 Arctogaa, 163 

 Arctotherium, 565 

 Arcyria, iSi 

 Ardea, 544 

 Arenicolida;, 2 78 

 Areola? mamma\ 540 

 Areolar connective tissue, 



76 

 Argas, 397 

 Argina, 323 

 Argiope, 291, 306 

 Argonautidoe, 347 

 Argulus, 370 

 Arion, 336 

 Arista, 431 



Aristotle's lantern, 305 

 Armadillidium, 386 

 Armadillos. 5O3 

 Armata, 281 

 Army worm, 433 

 Artemia, 3(10 

 Arterial arihcs, 484 

 Arterial blood, 102 

 Arteries, loi 

 Arthrodira, 513 

 Arthrogastrida, 391 

 Anhropoda, 349 

 Arthrostraca, 383 

 Articulare, 461 

 Articular process, 45^ 

 Articulata, 302, 349 

 Artificial parthenogenesis, 



137 

 selection, 35 

 Artiodactyla, 56S 

 Arvicola, 566 

 Ascalabotir, 529 

 Ascarida', 266 

 Ascaris, 264, 266 

 Ascidia'formes, 443 

 Ascidians, 443 



