INDEX 



733 



Belo7iosiomiis, 503 



Beiiibias, 700 



Bembrops, 705 



Beneden, Van, 37, 39 



Benham, 113 



Bentenia, 6SJ 



BenOtodesmus^ 679 



Benthophihis, 6S9 



BcuthosauruSf 611 



Bervcidae, 655, 651, 652, 653, 703, 303, 



361, 389 

 Beryx, 656 ; B. affinis and B. vixilleri, 



coloration, 165 : B. splendens, 655 

 Betta, 669 ; B. piignax, 669 

 Bib, 649 

 Bibronia, 6S5 



Birkenia, 531. 149 ; B. eler/ans, 532 

 Birkeniidae, 5S1 

 Bitterliug, 584, 416 

 Black Bass, 657 

 Black-Fish, 610, 643 

 Blastocoele, 44, 49, 52, 130 

 Blastogeiietic acceleratiou, 84 

 Blastopore, 20, 130 

 Blastosphere, 20, 130 

 Blastozooid, 84, 93 

 Blastula, 56 

 Bleak, 583, 167 

 Bleekeria, 705 

 Blenuiidae, 709, 651, 702, 703, 704, 103, 



271, 302, 418 

 Blennius, 709, 710 

 Blepsias, 698 

 Blind Fishes, 394, 713 ; of Mammoth Cave, 



619 

 Blochius, 680 

 Blood, of Hemichordata, 15 ; of Tunicata, 



49 ; of Amphioxus, 124 ; of Fishes, 341 

 Blood-glands, 342 

 Blue Sliark, 448 

 Boar-Fish, 666 

 Boas, 548 n. 

 Bola, 582 



Boleophthcdrfius, 689 

 Boleosoma, 659 

 BoUenia, 75 ; B. pachyde'nnatina, B. 



tulerculata, dorsal tubercle, 79 

 BolteninaB, 75 

 Bombay-duck, 613 

 Bonnet Shark, 450 

 Bonnier and Perez, 95 

 Borgert, 99 



Bothriolepis, 534 ; B. canadensis, 534 

 Botia,, 582 

 Botryllidae, 88, 81, 82, 84, 110 ; vessels, 



42 ; neural gland, 52 n. ; reproductive 



organs, 56 ; ascidiozooid, 82 

 Boirylloides, 88 



Botrtjllus, 88, 36, 90 ; stigmata, 59 ; dia- 

 gram of budding, 90 ; B. schlossari, 80 ; 



B. violaceus, 89 

 Bottard, 669, 696 n. 



Boulenger, 459 n., 477 n., 481 n., 551 n., 

 584 n., 586 n., 593 n., 683 u. 



Boidengerella, 675 



Bourne, 19 



Boveri, 113, 126 



Bovichthys, 706 



Bow-Fin, i9Q = Amia, q.v. 



Bux; 664, 665, 264, 276 ; B. vulgaris, 

 rectal caecum, 254 



Brachionidiihys, 720 



Brachiopoda, 35 



Brachychalcinus, 575 



Brachymystax, 565 



Brama, 682 ; B. lomjipinnis, 682 n. ; B. 

 rail, 682 n. 



Bramidae, 682, 676 



Branchial bars, of Amphioxus, 120, 122 



Branchial cavity, of Tunicata, 43, 101 



Branchial clefts, 155, 277 f. 



Branchial sac, 43, 44, 45, 53 ; of Appendi- 

 culariaus, 67 ; of Thaliacea, 96, 104, 

 105 



Branchial septa, of Hemichordata, 12 ; of 

 Amphioxus, 120 



Bmnchiostoma, 137, 112, 138 ; distribu- 

 tion, 138 ; B. bdcheri, 137, 138 ; B. 

 cali/omiense, 137 ; B. capense, 137 ; 

 B. caribbaeum, 137 ; B. elongatum, 

 137, 138 ; B. indicum, 137; B. lanceo- 

 latum, 112, 114 u., 115, 137, 138 ; 

 transverse section, 118, 121 : nephri- 

 dium, 126 ; nervous system, 128, 129 ; 

 gonads, 129 ; B. nakagawae, 137, 138 ; 

 B. pelagicum, 129 n., 137, 138 — see also 

 Amphioxus 



Branchiostomatidae, 137, 112 



Brauer, 571 



Breathing sounds, 357 



Breathing-valves, 288 



Bregviacerns, 648 



Breitenstein ia, 588 



Brevooriia, 563 



Bridge, 555, 558 n. 



Bridge and Haddon, 574 n., 587 n., 590 n. 



Brill, 687 



Brooks, 39, 101 n., 105 



Brosmius, 648 



Brosmophycis, 712 



Brotula, 712, 713 



Brychaehis, 557 



Brycon, 575 ; B. falcatus, mouth, 577 



Bryconaefhiops, 575 



Bryconodon, 575 



Bryconops, 575 



Bucklandii/iti, 589 



Budding, in Pterobranchia, 24, 27 ; in 

 Tunicata, 71, 80, 81 f., 90, 97, 103 



Budgett, 482, 483 u., 514, 562, 658 



Bull-heads, 698 



Bullhead Sharks, 444 



Bimocephalichthys, 596 



Bunocephalus, 596 



