738 



INDEX 



Dareste, 721 



Darters, 659 



Dascyllus, 672 



Dasyatis sahina, 4^4- 



Dasyscopelus, 611 



Ijatnioides, 658 



Dawydoff, 16 n. 



Day, 569 n., 593 n. 



Deal-Fisli, 715 



Delhez, 551 



Deltodiis, JfJiS 



Deltoptychius, 445 



Demersal, 408 



Bendrodoa, 76 



Dentex, 664 



Dentition, 247 f. ; dentinal tissues, 249 ; 

 fixation of teeth, 249 ; succession and 

 replacement, 250 ; shape, 251 ; sexual 

 difterenoes, 251 ; pharyngeal teeth, 251 ; 

 Cyclostomata, 247 ; Petromyzon, 248 ; 

 Fishes, 248 f. ; ScylUum, 249 ; Cnr- 

 chccHas, 250 



Dercetidae, fc'5, 622 



Dercetis, 62S 



DerepodicMhys, 71^ 



Derichthys, 601 



Dermal denticles, 183 f. ; structure and 

 development, 183, 184, 185 



Diagramma^ 664 



Bibraiichus, 7S0 



Uicerohatis, 4^5 



Dicrotus, 679 



Dideninidae, 86, 82, 110 



Ijidemnmii, 87 



Didymas^ns, 330 



DinicUhys, 537, 149 



Dinohstes, 659 



Dinoperca, 659 



Diodon, 7S6. 163, 354, 361 ; scales, 191 ; 

 teeth, 251 ; D. geometricus, 726 ; B. 

 hystrix, 364 



Diodontidae, 7SG, 722 



Diphycercal, 159 



Diplacauthidae, 44^ 



DiplacayLthopoma, 71t, 713 



Diplacanth us, 44i 



Dlplesium, 659 



Diplocrepiis, 709 



Diplomystes, 588, 587 



Diploviystus, 563 



Diplophos, 571 



Diplophysa, 582 



Dipjlnpterxis, 477 



Diploso-ma, 87 ; section, 8i 



Diplosoniatidae, 87, 110 



Biplosovioides lacazii, larva, 78 



Diplospondylic, 198 



Bijjliints, 481, 161 



Dipneusti — see Dipnoi 



Dipnoi (Dipneusti), 505 f., 149 ; distribu- 

 tion, 512 



JJipterodot), 665 



iJipterus, 506, 519 ; I), val&nciennesl, 

 506 



iJiptychus, 582 



Disartete, 636 u. 



Discocephali, 691 f., 051, 652 



Discognathus, 582 



Diseopyye, 464 



TJistaplia, 85 ; D. magnilarva, larva, 78 



Distichodontinae, 676 



THsHchodua, 576 ; D. niloticus, mouth, 

 577 



Distoma, 85 



Distomatidae, 55, 81, 82, 83, 86, 110; 

 reproductive organs, 56 ; ascidiozooid, 

 82 ; transverse section, 86 



Bitrema, 670 ; 1). temminclii, 670 



Dog-Fishes, 446 



Doldiinia, 96, 100; D. mirabilis, 100 



Dolichoglossus, 17, 5, 13 ; D. kmmlevskii, 

 6, 7, 9, 20 ; D. otagoensis, 11 



Dolichfli-hynchus, 137 ; D. indicus, 137 



Doliolidae, 96, 39, 110 



Doliolum, 96, 37 ; structure, 96 ; life- 

 history, 97, 98 ; occurrence, 99 ; bud- 

 ding, 97 ; polymorphism, 98 ; Z>. 

 natiomdis, 99 ; D. tritanis, 96, 99 



Dollo, 618 



Dolnjnchthys, 719 



Dolphins, 681 



Doradinae, 588 



Dorado, 578 



Doras, 588, 590, 592, 363 ; intestinal 

 respiration, 292 ; stridulation, 357 ; 

 elastic-spring-apparatus, 359 ; D. macu- 

 latus, air-bladder, 303 ; nature of 

 sounds, 362 



Dorsal lamina, 45, 47, 52, 101, 105 



Dorsal pore, 18, 19, 31 



Dorsal tubercle, 52, 79 



DoryicUhys, 6S4, 635 



Douniea, 588 



Doydixodon, 664 



Draconetta, 706 



Dragonet, 707 



Drasche, 38 



Drepanaspidae, 525, 530 



Drepanaspis gemiindenensis, 526, 530, 

 526, 626 



Drepane, 668 



Drepanidae, 668, 654 



Drum, 663, 304, 362 



Dnctiyr, 677 



Dufosse, 355 



Dussumieria, 563, 563 



Dybowski, 697 n. 



Dysichthys, 596 



Dysomma, 603 



Dysommatopsis, 60S 



Eagle Rays, 465 



Echeneididae, 691 



Echeneis, 691 ; cephalic sucker, 161 



