662 



INDEX. 



Biology, 4, 57 

 Bipalium, 271 

 Bipinnaria, 332 

 Biradial symmetry, 136 

 Bird lice, 479 

 Birds, 603 



Birds of paradise, 50, 616 

 Birgus, 432, 436 

 Bison, 642 

 Bittacus, 483 

 Bivium, 334 

 Black bass, 577 

 Black fish, 646 

 Black flies, 493 

 Black snake, 601 

 Bladder, urinary, 552 

 Bladder worm, 278, 284 

 Blarina, 637 

 Blastoderm, 153 

 Blastodermic vesicle, 155 

 Blastoidea, 342 

 Blastomeres, 151 

 Blastopore, 156 

 Blastostyle, 242 

 Blastula, 151, 155 

 Blatta, 480 

 Blattidse, 480 

 Blind fish, 576 

 Blissus, 489 

 Blister beetle, 484 

 Blood, 88, in 

 Blood corpuscles, 88 

 Bloodvessels, no, ill 

 Blow flies, 493 

 Blue birds, 6iC 

 Boa, 60 1 

 Bobolink, 616 

 Body cavity, 109 

 Bojanus, organ of, 363 

 Bolina, 264 

 Bombycina, 495 

 Bombyx, 495 

 Bonasa, 614 

 Bone, 86 



Bonellia, 317, 318 

 Book lice, 479 

 Bopyridse, 442 

 Bopyrus, 442 



Bos, 642 

 Bosmina, 417 

 Botall's duct, 550 

 Bot flies, 493 

 Bothriocephalidae, 287 

 Bothriocephalus, 281, 283, 287 

 Bothrops, 60 1 

 Botryllus, 510 

 Bougainvillea, 144, 241 

 Bovidae, 642 

 Bow fin, 574 

 Box turtle, 596 

 Brachialia, 340 

 Brachiolaria, 332 

 Brachiopoda, 325 

 Brachycera, 493 

 Brachyura, 437 

 Braconidse, 486 

 Bradypus, 636 

 Brain coral, 261 

 Branchial arch, 524 

 Branchial chamber, 352, 506 

 Branchial clefts, 501 

 Branchial heart, 391 

 Branchial tree, 348 

 Branchiata, 408 

 Branchiomerism, 523 

 Branchiopoda, 416 

 Branchiostegal membrame, 56 

 Branchiostegal rays, 562 

 Branchiostegite, 431 

 Branchipidae, 416 

 Branchipus, 416 

 Branchiura, 422 

 Braula, 493 

 Breast bone, 518 

 Brevilinguia, 599 

 Brissus, 346 

 Bristles, 311 

 Bristles, tactile, 126 

 Bristle tails, 477 

 Brittle stars, 337 

 Bronchiole, 548 

 Bronchus. 547 

 Bryozoa, 321 

 Bubalus, 642 

 Bubo, 617 

 Buccal cavity, 106 



