INDEX.

Abdominal Cavity, 123
Abdominal fins, 42
Abramis, 602
Abrostomus, 596
Acanthaphritis, 466
Acanthias, 331
Acanthicus, 576
Acanthobrama, 604
Acanthoclinus, 498
Acanthodes, 355
Acanthodini, 355
Acantholabrus, 528
Acanthonus, 547
Acanthophthalmus, 606
Acanthopsis, 606
Acanthopterygiau, 41
Acanthopterygii, 374
Acanthorhodeus, 601
Acanthurus, 438, 439
Acanus, 421
Acara, 536
Acclimatisation, 185
Acentronura, 683
Acerina, 378
Acestra, 579
Achilognathus, 601
Acipenser, 361
Acipenseridæ, 360
Acrochilus, 601
Acrochordonichthys, 567
Acrodus, 330
Acrogaster, 421
Acrognathus, 631
Acrolepis, 370
Acronuridæ, 438
Acronurus, 439
Acropoma, 395
Acyprinoid division, 218
Adipose eyelid, 113
Adipose fin, 42
Aegæonichthys, 476
Aellopos, 325
Aelurichthys, 569
Aesopia, 558
Aëtobatis, 345
African region, 227
Agassiz, 20, 31, 32
Ageniosus, 572
Agnus, 463
Agoniates, 610
Agonostoma, 504
Agonus, 480
Agrammus, 491
Agriopus, 416
Ailia, 566
Aipichthys, 441
Air-bladder, 142
Akysis, 567
Albacore, 458
Albinism, 183
Alborella, 604
Albula, 660
Albulichthys, 596
Alburnus, 603
Alepocephalus, 664
Alestes, 608
Ale-wife, 659
Alisphenoid, 56, 88
Allice Shad, 659
Alopecias, 322
Ambassis, 393
Amblyopsis, 618
Amblyopus, 489
Amblypharyngodon, 598
Amblypterus, 370
Amblyrhynchichthys, 596
Amia, 372
Amioidei, 370
Amiurus, 567
Ammocoetes, 693
Ammodytes, 550
Ammopleurops, 559
Ammotretis, 557
Amphioxus, 696
Amphipnous, 668
Amphiprion, 525
Amphisile, 509
Amphistium, 442
Anabas, 516
Anableps, 617
Anacanthini, 537
Anacanthus, 684
Anacyrtus, 611
Anal fin, 40, 42
Anampses, 529
Anapterus, 582
Anarrhichas, 492
Anastomus, 608
Anchovy, 656
Ancistrodon, 319
Ancylodon, 430
Anema, 463
Anenchelum, 433
Angel-fish, 334
Angler, 470
Anguilla, 671
Angular bone, 54, 91
Anomalops, 449
Anoplogaster, 422
Antarctic ocean, 289
Antennarius, 473
Anthias, 380
Anticitharus, 556
Antigonia, 449
Aphanopus, 434
Aphareus, 390
Aphoristia, 559
Aphredoderus, 396
Aphritis, 466
Aphyocharax, 610
Aphyocypris, 598
Aphyonus, 548
Apionichthys, 559
Apistus, 415
Aploactis, 417
Apocryptes, 487
Apodichthys, 496
Apogon, 394
Apophyses, 51
Appendices pyloricæ, 131
Aprion, 397
Apsilus, 397
Apua, 606
Arapaima, 654
Archæus, 442
Archipterygium, 74
Arctic ocean, 261
Arctic zone, 241
Argentina, 650
Arges, 575
Argyropelecus, 628
Argyriosus, 443
Aristotle, 1
Arius, 569
Arnoglossus, 556
Arrhamphus, 621
Arripis, 393
Artedi, 9
Artedius, 480
Arthropterus, 342
Articulary bone, 54, 90
Articulated rays, 40
Asima, 405
Aspidoparia, 602
Aspidophoroides, 480
Aspidorhynchidæ, 369
Aspius, 603
Aspredo, 580
Aspro, 379
Astracanthus, 314
Astrape, 340
Astrolepis, 354
Astronesthes, 629
Astrophysus, 572
Astroplebus, 575
Astroptychius, 314
Ateleopus, 553
Atherina, 500
Atherinichthys, 501
Atlantic, tropical, 278
Atlantic, northern, 262
Atopochilus, 570
Atopomycterus, 689
Atypichthys, 402
Auchenaspis, 354
Auchenipterus, 572
Auchenoglanis, 569
Aulacocephalus, 383
Aulolepis, 631
Aulichthys, 508
Auliscops, 507, 508
Aulopus, 587
Aulopyge, 596
Aulorhynchus, 508
Aulostoma, 507, 508
Ausonia, 455
Ausonius, 3
Autochthont, 214
Autostylic skull, 71
Auxis, 459
Avola, 604

Badis, 418
Baer, 32
Bagarius, 570
Bagrichthys, 567
Bagroides, 567
Bagropsis, 568
Bagrus, 567
Baird, 29
Bakker, 32
Balfour, 32, 33
Balistes, 684
Ballan Wrasse, 527
Band-fish, 490
Barbel, 594
Barbels, 37
Barbichthys, 596
Barbus, 594
Barilius, 602
Barracuda, 437, 499
Barramunda, 357
Barynotus, 596
Basibranchial, 58
Basihyal, 58
Basioccipital, 56, 87
Basisphenoid, 56, 57, 89
Basking shark, 322
Bass, 376
Bastard Dorey, 388
Bathydraco, 465
Bathygadus, 552
Bathylagus, 650
Bathynectes, 547
Bathyophis, 629
Bathypterois, 583
Bathysaurus, 582
Bathythrissa, 668
Bathytroctes, 664
Batoidei, 335
Batrachocephalus, 570
Batrachus, 467
Bayad, 567
Bdellostoma, 695
Becker, 408
Bellows-fish, 509
Belodontichthys, 566
Belon, 3
Belone, 620
Belonesox, 617
Belonostomus, 369
Bembras, 480
Benedenius, 370
Benthophilus, 489
Berycidæ, 420
Berycopsis, 421
Beryx, 422
Betta, 518
Bib, 541
Bichir, 364
Bitterling, 601
Black Bass, 393
Black-fish, 452, 527
Black Head, 596
Black Horses, 589
Black Sea-bream, 406
Blanchard, 28
Bleak, 604
Bleeker, 30
Bleekeria, 550
Blenniidæ, 492
Blenniops, 496
Blennius, 493
Blennodesmus, 538
Blennophis, 498
Blenny, 492
Blepsias, 480
Blind fish, 618
Bloch, 13
Blood-corpuscles, 150
Blue-fish, 447
Boar-fish, 388, 449
Bocage, 28
Bocourt, 31
Bola, 602
Boleophthalmus, 487
Boleosoma, 379
Bolty, 535
Bombay-duck, 584
Bonaparte, 28
Bonelli, 7
Bonito, 458
Bony Pike, 367
Borer, 694
Botia, 605
Bovichthys, 465
Bow-fin, 372
Box, 406
Brachionichthys, 474
Brachymystax, 646
Brachypleura, 556
Brackish water fishes, 250
Brain, 97
Brama, 454
Branched rays, 40
Branchiæ, 136
Branchial arches, 58
Branchiostegals, 39, 58, 91
Branchiostoma, 696
Bream, 602
Bregmaceros, 545
Brill, 555
British district, 263
Brontes, 575
Brook-trout, 646
Brosmius, 546
Brotula, 546
Brotulophis, 549
Brünnich, 13
Brycon, 610
Bryconæthiops, 610
Bryconops, 610
Bryttus, 396
Buccal cavity, 123
Bulbus aortæ, 152
Bull-head, 476
Bull-trout, 644
Bulti, 535
Buffaloe, 589
Bummaloh, 584
Bungia, 596
Bunocephalichthys, 580
Bunocephalus, 580
Bunocottus, 480
Burbot, 544
Bursa entiana, 128
Burton Skate, 341
Butter-fish, 496, 533
Bynni, 594
Bythites, 549

Cachius, 604
Cænotropus, 607
Cæsio, 390
Calamoichthys, 364
Californian district, 271
Calamostoma, 680
Callanthias, 381
Callichrous, 566
Callichthys, 575
Callionymus, 489
Callipteryx, 462
Callomystax, 573
Callophysus, 569
Callorhynchus, 350
Callyodon, 532
Camper, 16
Campostoma, 596
Cantharina, 405
Cantharus, 405
Cantor, 30
Capelin, 647
Capello, 28
Cape of Good Hope, 283
Capitodus, 405
Capoëta, 593
Capros, 449
Carangidæ, 440
Carangopsis, 442
Caranx, 442
Carapus, 667
Carassius, 591
Carboniferous fishes, 196
Carcharias, 316
Carchariidæ, 316
Carcharodon, 320
Carcharopsis, 319
Cardlike teeth, 126
Caribe, 613
Carmoot, 563
Carp, 589
Carpals, 59
Carpiodes, 589
Cartilage-bones, 87
Castelnau, 31
Cataphracti, 480
Cat-fishes, 568
Catla, 592
Catopra, 418
Catoprion, 613
Catostomus, 589
Caturidæ, 371
Caudal fin, 40
Cebidichthys, 498
Central American district, 279
Centrarchus, 396
Centridermichthys, 477
Centrina, 331
Centriscus, 509
Centrolabrus, 528
Ceutrolepis, 370
Centrolophus, 452
Centromochlus, 572
Centronotus, 496
Centrophorus, 331
Centropogon, 417
Centropomus, 379
Ceutropristis, 380
Centroscyllium, 332
Centrum, 51
Cephalacanthus, 482
Cephalaspis, 353
Cephaloptera, 347
Cephenoplosus, 368
Cepola, 490
Ceratias, 472
Ceratichthys, 596
Ceratobranchial, 58
Ceratodus, 357
Ceratohyal, 58
Ceratoptera, 347
Cerebellum, 97
Cestracion, 330
Cestraciontidæ, 328
Cetengraulis, 656
Cetopsis, 572
Chaca, 564
Chad, 408
Chænichthys, 466
Chætobranchus, 537
Chætodon, 398
Chætopterus, 390
Chætostomus, 576
Chalceus, 610
Chalcinopsis, 610
Chalcinus, 610
Champsodon, 464
Channa, 513
Chanodichthys, 604
Chanos, 662
Characinidæ, 606
Characodon, 615
Charr, 645
Chasmodes, 494
Chatoëssus, 657
Chauliodus, 628
Chaunax, 474
Cheilio, 530
Chela, 604
Chelmo, 399
Chiasmodus, 546
Chilian district, 288
Chilinus, 528
Chilobranchus, 669
Chilodactylus, 411
Chilodipterus, 395
Chilomycterus, 689
Chilorhinus, 674
Chiloscyllium, 326, 327
Chimæra, 349
Chimæridæ, 348
Chimarrhichthys, 466
Chiracanthus, 355
Chirocentrites, 656
Chirocentrodon, 660
Chirocentrus, 663
Chirodon, 609
Chirodus, 370
Chirolepis, 370
Chironemus, 411
Chirus, 491
Chlorophthalmus, 587
Chœrops, 530
Chologaster, 618
Chomatodus, 329
Chondropterygii, 313
Chondrostei, 360
Chondrosteus, 363
Chondrostoma, 600
Chorda dorsalis, 63
Chorinemus, 446
Chorismodactylus, 417
Chorisochismus, 512
Chromatophors, 183
Chromides, 534
Chromis, 535
Chrysichthys, 567
Chrysophrys, 409
Chub, 596, 599, 600
Cichla, 536
Cichlops, 466
Circulation, organs of, 150
Cirrhilabrus, 530
Cirrhina, 596
Cirrhites, 411
Cirrhitidæ, 410
Cirrostomi, 696
Citharichthys, 556
Citharinus, 607
Citharus, 556
Cladacanthus, 314
Cladodus, 328
Clarias, 563
Clarotes, 567
Claspers, 167
Clavicula, 59, 92
Clepticus, 530
Climbing Perch, 516
Clinus, 495
Cloudy Bay cod, 549
Clupea, 658
Clupeichthys, 660
Clupeoides, 660
Cnidoglanis, 564
Coal-fish, 541
Cobitis, 605
Coccia, 628
Coccosteus, 351
Cochlognathus, 596
Cochliodus, 329
Cock-and-hen Paddle, 484
Cod-fishes, 539
Cœcal stomach, 130
Coelacanthidæ, 365
Coelodus, 367
Coelogaster, 656
Coelonotus, 681
Coelorhynchus, 433
Coffer-fish, 686
Coilia, 657
Collichthys, 430
Commerson, 13
Conger, 673
Congrogadina, 550
Congromuræna, 674
Conodon, 386
Conodonts, 193
Conodus, 368
Conorhynchus, 569
Conus arteriosus, 151
Cook, 527
Copidoglanis, 564
Coracoid, 59, 92
Coral-fishes, 397, 525
Corax, 317
Coregonus, 647
Coridodax, 533
Coris, 530
Cork-wing, 527
Cornide, 13
Corpora quadrigemina, 103
Corpora restiformia, 99
Corpora striata, 100
Corvina, 430
Corvo, 429
Corynopoma, 607
Coryphæna, 452
Coryphænoides, 552
Cosmolepis, 370
Cosmoptychius, 370
Cossyphus, 528
Costa, 28
Cottoperca, 466
Cottus, 476
Cotylis, 512
Couch, 27
Couchia, 544
Craig-fluke, 557
Creagrutus, 610
Cremnobates, 495
Crenicichla, 537
Crenidens, 406
Crenilabrus, 527
Crenuchus, 612
Crepidogaster, 513
Cretaceous fishes, 199
Cricacanthus, 314
Cristiceps, 495
Crossochilus, 596
Crossognathus, 656
Crossorhinus, 328
Crossostoma, 604
Crucian carp, 591
Crura cerebri, 98
Cryptacanthodes, 496
Cryptopterus, 566
Ctenododipteridæ, 359
Ctenodus, 359
Ctenoid scales, 46
Ctenolabrus, 527
Ctenopharyngodon, 601
Ctenopoma, 516
Ctenoptychius, 329
Cubiceps, 456
Culter, 604
Curimatus, 607
Cut-lips, 596
Cuvier, 17
Cyathaspis, 354
Cybium, 459
Cyclobatis, 340
Cycloid scales, 46
Cyclopoma, 375
Cyclopterus, 484
Cycloptychius, 370
Cyclostomata, 691
Cyclurus, 588
Cyema, 670
Cymolutes, 530
Cynodon, 611
Cynoglossus, 558
Cynolebias, 615
Cyprinidæ, 587
Cyprinion, 598
Cyprinodon, 614
Cyprinoid division, 217
Cyprinus, 589
Cyttidæ, 450
Cyttus, 451

Dab, 557
Dace, 599, 600
Dactylopterus, 481
Dactyloscopus, 498
Dangila, 596
Danio, 602
Dascyllus, 525
Datnioides, 397
Daurade, 409
Day, 30
Deal-fish, 522
Decodon, 530
Deep-sea fishes, 296
Dekay, 29
Dendrodus, 365
Dentary, 54, 91
Dentex, 389
Dercetis, 666
Dermal spines, 53
Dermoskeleton, 85
Devil-fishes, 344
Devonian fishes, 193, 194
Diagramma, 386
Diana, 455
Dibranchus, 475
Dicerobatis, 347
Dicotylichthys, 689
Dicrotus, 437
Dictyosoma, 498
Didymaspis, 354
Digestion, organs of, 121
Dimeracanthus, 314
Dinematichthys, 549
Dinichthys, 352
Diodon, 689
Dioecious, 157
Diplocrepis, 513
Diplomystax, 569
Diplophos, 629
Diploprion, 383
Diplopterus, 365
Dipnoi, 355
Dipterodon, 406
Dipterus, 359
Diptychus, 595
Diretmus, 449
Discoboli, 483
Discognathus, 593
Discopyge, 340
Distichodus, 612
Ditrema, 534
Dog-fishes, 325, 619
Doliichthys, 487
Dolphins, 453
Domesticated fishes, 185
Domine, 436
Donovan, 17
Doras, 572
Doratonotus, 530
Dorsal fin, 40
Dorsch, 540
Dory, 450
Doryichthys, 681
Doydixodon, 406
Dragonet, 489
Drepane, 402
Drepanephorus, 331
Drum, 427
Ductor, 442
Ductus choledochus, 133
Ductus cysticus, 133
Duhamel, 13
Dules, 384
Duméril, 33
Dussumieria, 662
Duverney, 7
Duymæria, 530

Eagle-Rays, 344
Ear, 116
Echeneis, 460
Echinorhinus, 333
Echiostoma, 629
Ectopterygoid, 90
Edaphodon, 349
Eel, 671
Eel-pout, 544
Egertonia, 526
Elacate, 460
Elasmodus, 349
Elasmognathus, 349
Electric Eel, 667
Electric organs, 94
Electric Rays, 339
Electric Sheath-fish, 574
Eleotris, 488
Elonichthys, 370
Elopichthys, 604
Elops, 661
Embiotocidæ, 533
Encheliophis, 549
Enchelycore, 677
Enchodus, 433
Endoskeleton, 85
Engraulis, 656
Enneodon, 687
Enoplosus, 380
Entopterygoid, 55, 90
Epalzeorhynchus, 596
Ephippus, 402
Epibranchial, 59
Epibulus, 528
Epicoracoid, 59
Epididymis, 167
Epigionichthys, 696
Epihyal, 58
Epinnula, 436
Epioticum, 88
Epiphysis, 98
Epitympanic, 55
Equatorial zone, 218, 272
Eques, 431
Equula, 449
Eremophilus, 581
Erethistes, 580
Ericymba, 596
Erythrichthys, 391
Erythrinus, 607
Escholar, 437
Esox, 624
Etelis, 397
Etheostomatidæ, 379
Ethmoid, 57, 89
Etroplus, 534
Etrumeus, 662
Euanemus, 572
Euctenogobius, 487
Euglyptosternum, 571
Eugnathus, 368
Eulachon, 647
Eulepidotus, 368
Euoxymetopon, 434
Euprotomicrus, 334
Europo-Asiatic region, 243
Eurynotus, 370
Eurypholis, 666
Eurysomus, 370
Eustira, 604
Eutropiichthys, 566
Eutropius, 566
Evorthodus, 487
Exoccipital, 56, 87
Exocoetus, 621
Exoglossum, 596
Exostoma, 580
Eye, 36, 111

Fabricius, 13
Fall-fish, 600
Fierasfer, 549
Fighting-fish, 519
File-fishes, 684
Fins, 40
Fishing-Frog, 470
Fistularia, 507, 508
Fitzroyia, 615
Flat-fishes, 553
Flounder, 557
Flute-mouth, 507
Flying-fish, 621
Flying Gurnard, 482
Forskal, 13
Forster, 13
Freshwater-fishes, 208
Freshwater-Herring, 645
Fries and Ekström, 27
Frog-fish, 470
Frontal bone, 57, 89
Frost-fish, 436
Fuegian sub-region, 248
Fundulus, 615

Gadiculus, 541
Gadidæ, 539
Gadopsis, 537
Gadus, 539
Galapagoes district, 280
Galaxias, 624
Galeichthys, 569
Galeocerdo, 317
Galeoides, 425
Galeus, 318
Gallo, 451
Gambusia, 616
Ganodus, 349
Ganoidei, 350
Ganoid scales, 47
Gar-pike, 367, 620
Gaspereau, 659
Gastrochisma, 455
Gastrocnemus, 452
Gastromyzon, 604
Gastropelecus, 610
Gastrosteus, 505
Gastrotokeus, 682
Gazza, 450
Gegenbaur, 32
Gempylus, 437
Genidens, 569
Genyoroge, 384
Genypterus, 549
Geoffroy, 33
Geophagus, 537
Geotria, 693
Gerres, 388
Gillaroo, 645
Gill-cover, 38
Gill-opening, 38
Gill-rakers, 59, 139
Gills, 136
Gilthead, 409
Ginglymostoma, 326
Girardinus, 618
Girella, 406
Glanidium, 572
Glanis, 566
Glaucosoma, 384
Globe-fish, 687
Glossohyal, 58
Glottis, 149
Glut, 673
Glutinous hag, 694
Glyphidodon, 525
Glyptauchen, 415
Glyptolæmus, 365
Glyptolepis, 365
Glyptopomus, 365
Glyptosternum, 572
Gmelin, 13
Gobiesocidæ, 510
Gobiesox, 513
Gobio, 595
Gobiodon, 487
Gobiosoma, 487
Gobius, 486
Goby, 486
Gold-fish, 591
Gold-Sinny, 527
Gomphodus, 319
Gomphosus, 530
Gonatodus, 370
Goniognathus, 452
Gonorhynchus, 652
Gonostoma, 629
Gourami, 517
Grammistes, 382
Granular teeth, 126
Graphiurus, 365
Grayling, 649
Greenland Shark, 333
Grey Mullet, 501
Grig, 673
Gronow, 12
Growler, 393
Growth of Fishes, 170
Grystes, 392
Gudgeon, 596
Gular plates, 80
Güldenstedt, 13
Gunellichthys, 498
Gunnel-fish, 496
Günther, 27, 30
Gurnard, 479
Gwyniad, 649
Gymnachirus, 558
Gymnarchus, 626
Gymnelis, 538
Gymnocrotaphus, 406
Gymnocypris, 595
Gymnomuræna, 677
Gynmoscopelus, 585
Gymnotus, 667
Gyracanthus, 314
Gyrodus, 367
Gyropristis, 314
Gyroptychius, 365

Haddock, 540
Hadot, 540
Hæmal arches, 86
Hæmal spine, 52
Hæmapophyses, 51
Hæmulon, 386
Hag-fish, 694
Hair-tail, 436
Hake, 542
Halargyreus, 541
Halec, 656
Halecidæ, 656
Half-beak, 621
Halidesmus, 549
Halieutæa, 475
Halieutichthys, 475
Haliophis, 550
Haller, 16
Haloporphyrus, 543
Halosauridæ, 665
Hamilton, 17
Hammerhead, 318
Hapalogenys, 386
Haplochilus, 615
Haplochiton, 651
Haplodactylina, 406
Hapuku, 392
Harpagifer, 467
Harpodon, 583
Harttia, 580
Hasse, 32
Hasselquist, 13
Hausen, 361
Head, 36
Heart, 150
Heckel, 28
Hector, 32
Heliastes, 525
Helicophagus, 566
Heliodus, 359
Helmichthys, 180
Helogenes, 567
Helotes, 385
Hemerocœtes, 491
Hemichromis, 535
Hemiculter, 604
Hemigaleus, 319
Hemigymnus, 530
Hemilepidotus, 480
Hemiodus, 607
Hemipimelodus, 569
Hemipristis, 317
Hemirhamphus, 621
Hemirhombus, 556
Hemirhynchus, 437
Hemisaurida, 582
Hemisilurus, 566
Hemisorubim, 568
Hemithyrsites, 434
Hemitrichas, 656
Hemitripterus, 417
Heniochus, 399
Heptanchus, 325
Heptapterus, 581
Hermaphroditism, 157
Heros, 536
Herring, 658
Heteracanth, 41
Heterobranchus, 563
Heterocercy, 80
Heteroconger, 674
Heterognathodon, 389
Heterolepidotidæ, 491
Heteropygii, 618
Heterostichus, 498
Heterotis, 655
Hexanchus, 325
Hexapsephus, 588
Himantolophus, 472
Hippocampus, 683
Hippoglossoides, 555
Hippoglossus, 555
Histiophorus, 431
Histiopterus, 387
Holacanthus, 400
Holibut, 555
Hollardia, 684
Holocentrum, 423
Holocephala, 348
Holophagus, 365
Holoptychidæ, 365
Holosteus, 619
Homacanth, 41
Homaloptera, 604
Hombron et Jacquinot, 27
Homelyn Ray, 341
Homocanthus, 314
Homocercy, 83
Homoeolepis, 366
Homonotus, 421
Hopladelus, 568
Hoplichthys, 478
Hoplognathus, 410
Hoplopleuridæ, 665
Hoplopteryx, 421
Hoplopygus, 365
Hoplostethus, 421
Hoplunnis, 674
Horse-mackerel, 442
Hounds, 319
Huchen, 645
Humeral arch, 59
Hunds-fish, 619
Hunter, 16
Huro, 393
Hutton, 32
Huxley, 33
Hybernation, 188
Hybodontidæ, 328
Hybognathus, 596
Hyborhynchus, 596
Hybridism, 178
Hydrocyon, 611
Hygrogonus, 536
Hyodon, 653
Hyoid arch, 58
Hyomandibular, 55, 89
Hyoprorus, 674
Hyoptopoma, 578
Hyostylic skull, 74
Hypamia, 372
Hyperoglyphe, 387
Hyperopisus, 625
Hypnos, 340
Hypobranchial, 58
Hypomessus, 647
Hypophthalmichthys, 602
Hypophthalmus, 566
Hypophysis, 98
Hypotympanic, 55
Hypsinotus, 402
Hypsodon, 500
Hypural, 53, 84
Hyrtl, 32
Hysterocarpus, 534
Hystricodon, 611

Icelus, 477
Ichthyborus, 612
Ichthyocampus, 681
Ichthyodorulites, 194
Ichthyomyzon, 693
Id, 599
Ikan sumpit, 403
Impregnation, artificial, 186
Indian region, 220
Indo-Pacific ocean, 278
Infraorbital, 54
Infundibulum, 98
Interhæmals, 53
Intermaxillary, 53
Interneurals, 53
Interoperculum, 38, 55, 91
Intestine, 127
Ipnops, 585
Ischyodus, 349
Ischyrocephalus, 666
Isistius, 334
Isthmus, 39, 58
Isurus, 457

Japanese District, 270
Jenyns, 27
Jenynsia, 616
John Dory, 451
Jugular fins, 42
Julis, 529

Kabeljau, 540
Kalm, 13
Kamtschatkan district, 269
Karausche, 591
Karpfen, 589
Kathetostoma, 463
Kaup, 33
Kelb el bahr, 611
Kelb el moyeh, 611
Kelp-fish, 533
Keris, 440
Ketengus, 569
Kidney, 155
King of the herrings, 522
Klein, 12
Klipvisch, 549
Klunzinger, 30
Kner, 27, 28
Kneria, 606
Kokopu, 625
Kölliker, 32
Kovalevsky, 33
Kröyer, 27
Kurtus, 425

Labberdan, 540
Labeo, 593
Labials, 64, 69
Labrax, 376
Labrichthys, 530
Labridæ, 525
Labroides, 530
Labrus, 526
Labyrinthici, 514
Lachnolæmus, 528
Lachs, 644
Lacépède, 15
Lactarius, 450
Ladislavia, 596
Læmargus, 333
Læmonema, 543
Læops, 557
Lais, 566
Laminæ branchiales, 136
Lamna, 320
Lamnidæ, 319
Lampern, 692
Lampris, 454
Lamprey, 692
Lancelet, 696
Lanioperca, 397
Larimus, 431
Lateral line, 48
Lates, 377
Latilus, 466
Latris, 412
Latrunculus, 486
Launce, 550
Leather-carp, 591
Lebiasina, 607
Lemon-sole, 558
Lentipes, 487
Lepadogaster, 513
Lepidoblennius, 498
Lepidocephalichthys, 606
Lepidocephalus, 606
Lepidocottus, 476
Lepidopsetta, 556
Lepidopus, 435
Lepidosiren, 355
Lepidosteidæ, 367
Lepidotrigla, 479
Lepidotus, 368
Lepidozygus, 525
Leporinus, 608
Lepracanthus, 314
Leptacanthus, 314
Leptobarbus, 597
Leptocarcharias, 319
Leptocardii, 696
Leptocephali, 179
Leptoichthys, 681
Leptojulis, 529
Leptolepidæ, 371
Leptopterygius, 513
Leptoscopus, 463
Leptosomus, 656
Leptotrachelus, 666
Lesson, 26
Lethrinus, 407
Leucaspius, 604
Leuciscus, 598
Leucosomus, 600
Liacanthus, 314
Liachirus, 558
Liassic fishes, 198
Lichia, 446
Ligamentum longitudinale, 72
Limnurgus, 615
Ling, 544, 549
Linnæus, 10
Liocassis, 567
Liopsetta, 556
Lioscorpius, 415
Liparis, 485
Liposarcus, 576
Liver, 132
Loach, 604
Lobotes, 387
Lonchurus, 431
Lophiogobius, 487
Lophiosilurus, 569
Lophiostomus, 368
Lophius, 470
Lophobranchii, 678
Lophonectes, 556
Loricaria, 578
Lota, 544
Lotella, 543
Loxodon, 319
Lucania, 615
Lucifuga, 547
Luciocephalidæ, 519
Luciogobius, 489
Lucioperca, 378
Luciosoma, 598
Luciotrutta, 646
Lump-sucker, 484
Lütken, 32
Lycodes, 537

Mackerel, 456, 457
Mackerel Midge, 544
Macrodon, 607
Macrolepis, 421
Macrones, 567
Macropoma, 365
Macropus, 517
Macrosemius, 368
Macruridæ, 557
Macruronus, 552
Macrurus, 552
Mæna, 390
Mahaseer, 594
Malacanthus, 467
Malacocephalus, 552
Malacopterus, 528
Malacopterygian, 41
Malacosteus, 629
Malapterurus, 574
Mallotus, 647
Malpighi, 7
Malpighian corpuscle, 155
Malthe, 475
Mandible, 54
Margrav, 7
Marine fishes, 254
Mary sole, 555
Maskinonge, 624
Mastacembelus, 498
Mastoid, 57, 88
Maurolicus, 628
Maynea, 538
Maxillary, 53, 90
Meagre, 427
Meckel’s cartilage, 54
Meda, 601
Mediterranean district, 264
Medulla oblongata, 98
Megalichthys, 365
Megalobrycon, 610
Megalops, 661
Meidinger, 13
Melamphaes, 423
Melanocetus, 473
Melanonus, 541
Membrane-bones, 75, 84
Mendosoma, 412
Mene, 455
Menhaden, 659
Merluccius, 542
Mesencephalon, 97
Mesoarium, 158
Mesodon, 367
Mesogaster, 500
Mesolepis, 370
Mesonauta, 536
Mesoprion, 384
Mesops, 537
Mesopterygium, 70
Mesotympanic, 55
Mesturus, 367
Metacarpals, 59
Metamorphosis, 170
Metapterygium, 70
Metapterygoid, 55, 90
Metencephalon, 97
Micracanthus, 519
Microconodus, 370
Microdesmus, 538
Microdon, 367
Micropogon, 428
Micropteryx, 443
Micropus, 416
Microstoma, 650
Miller’s-thumb, 476
Minnow, 596, 599
Minous, 417
Misgurnus, 604
Mishcup, 408
Mitchell, 17
Mixogamous, 177
Mollienesia, 617
Molva, 544
Monacanthus, 684
Monk-fish, 334
Monocentris, 421
Monocirrhus, 418
Monopterus, 669
Moon-eye, 653
Mora, 541
Mordacia, 693
Moringua, 675
Mormyrops, 626
Mormyrus, 625
Mossbanker, 659
Motella, 544
Mouth, 37, 123
Moxostoma, 589
Mud-fish, 372, 619
Mugil, 501
Müller, H., 33
Müller, J., 22, 32, 33
Müller, O. F., 13
Müller, W., 33
Mullidæ, 403
Mulloides, 404
Mullus, 404
Munro, 16
Muræna, 675
Murænesox, 674
Murænichthys, 674
Murænolepis, 545
Murray-Cod, 392
Muscles, 93
Muskellunge, 624
Mustelus, 318
Mylesinus, 613
Myletes, 613
Myliobatis, 344
Mylocyprinus, 588
Myloleucus, 601
Mylopharodon, 601
Myology, 93
Myriacanthus, 314
Myriodon, 383
Myriolepis, 370
Myripristis, 423
Myroconger, 677
Myrophis, 674
Myrus, 674
Mystacoleucus, 598
Myxine, 695
Myxodes, 498
Myxus, 504

Nandus, 418
Nannœthiops, 610
Nannobrachium, 587
Nannocampus, 681
Nannocharax, 608
Nannostomus, 607
Narcine, 340
Naseus, 438, 440
Nauclerus, 446
Naucrates, 444
Nautichthys, 480
Nealotus, 434
Nearctic region, 246
Nebris, 431
Nebrius, 326
Neetroplus, 536
Nefasch, 612
Nemacanthus, 314
Nemachilus, 605
Nemadactylus, 412
Nematogenys, 581
Nematops, 557
Nematoptychius, 370
Nemichthys, 670
Nemophis, 498
Nemopteryx, 434, 539
Neochanna, 624
Neoclinus, 498
Neoconger, 674
Neophrynichthys, 469
Neotropical region, 233
Nerfling, 599
Nerophis, 681
Nerves, 103
Nesiarchus, 434
Nettastoma, 674
Neural arches, 85
Neural spine, 52
Neurapophyses, 51
Neurology, 96
Neuroskeleton, 85
New Zealand sub-region, 248
Nictitating membrane, 113
Nilsson, 27
Niphon, 397
Nomeidæ, 455
Nomeus, 456
Nonnat, 501
Nordmann, 28
North American district, 266
North American region, 246
North Atlantic, 262
Northern temperate zone, 262
Northern zone, 240
North Pacific, 268
Nostrils, 37, 109
Notacanthus, 523
Notidanus, 325
Notochord, 63
Notoglanis, 569
Notograptus, 498
Notopterus, 665
Notothenia, 466
Noturus, 568
Novacula, 529
Nummopalatus, 526
Nuria, 598
Nutrition, organs of, 121

Oar-Fish, 522
Oblata, 406
Occipital, 56
Ochetobius, 602
Odax, 532
Odontaspis, 321
Odonteus, 525
Odontostomus, 587
Oil-sardine, 660
Old Red Sandstone, 194
Old wife, 406
Olfactory lobes, 97
Olfactory organ, 109
Oligorus, 392
Oligosarcus, 611
Olistherops, 533
Ombre, 429
Ombre chevalier, 645
Omentum, 132
Onchus, 314
Oncorhynchus, 646
Oneirodes, 473
Oolithic fishes, 199
Opercular gill, 138
Operculum, 38, 54, 91
Ophichthys, 674
Ophidiidæ, 546
Ophidium, 549
Ophiocephalidæ, 513
Ophiodon, 491
Ophiopsis, 368
Opisthognathus, 466
Opisthopteryx, 656
Opisthoticum, 88
Opsariichthys, 602
Optic lobes, 97
Oracanthus, 314
Orbitosphenoid, 57, 88
Oreinus, 595
Oreonectes, 606
Orestias, 615
Orfe, 599
Orthacanthus, 334
Orthagoriscus, 690
Orthodon, 601
Orthostomus, 489
Osbeck, 13
Osmeroides, 582, 631
Osmerus, 646
Os operculare, 91
Osphromenus, 517
Osteobrama, 604
Osteochilus, 596
Osteogeniosus, 569
Osteoglossum, 654
Osteolepis, 365
Ostracion, 686
Os transversum, 56
Otolith, 116
Otolithus, 430
Oulachon, 647
Ovaries, 158, 166
Ovum, 158, 159, 167
Owen, 33
Oxuderces, 489
Oxyconger, 674
Oxydoras, 572
Oxygnathus, 370
Oxymetopon, 489
Oxyrhina, 320
Oxytes, 319

Pachycormus, 368
Pachymetopon, 406
Pachyurus, 430
Pagellus, 408
Pagrus, 408
Paired fins, 42
Palæarctic region, 243
Palæichthyes, 312
Palæogadus, 539
Palæoniscidæ, 369
Palæorhynchus, 437
Palæeoscyllium, 326
Palæospinax, 330
Palatine, 56, 90
Palatine arch, 55
Palimphyes, 457
Pallas, 13
Pammelas, 447
Pancreas, 133
Pangasius, 566
Pantodon, 653
Papilla urogenitalis, 156
Paracanthobrama, 598
Paradiplomystax, 569
Paradise-fish, 517
Paragoniates, 610
Paralepis, 585
Paralichthys, 556
Paramisgurnus, 606
Paramyrus, 674
Paraperca, 375
Paraphoxinus, 601
Parapophyses, 51
Parascopelus, 582
Parascyllium, 326
Parasphenoid, 56, 89
Pardachirus, 558
Paretroplus, 535
Parietals, 57, 89
Pariodon, 581
Parker, 32
Parma, 525
Parnell, 27
Paroccipital, 56, 88
Parodon, 607
Parophrys, 557
Paropsis, 450
Parra, 13
Parr-marks, 631
Parrot-wrasses, 530
Patæcus, 497
Patagonian district, 289
Peal, 644
Pectoral arch, 92
Pectoral fins, 42
Pediculati, 469
Pegasus, 482
Pelagic fishes, 292
Pelamys, 459
Pelargorhynchus, 666
Pelecus, 604
Pelerin, 322
Pellona, 660
Pellonula, 660
Pelor, 417
Pelotrophus, 604
Peltorhamphus, 557
Pempheris, 425
Pennant, 13
Pentaceros, 397
Pentanemus, 425
Pentapus, 390
Pentaroge, 417
Perca, 375
Percalabrax, 378
Perch, 375
Percichthys, 376
Percidæ, 375
Percilia, 397
Percis, 464
Percophis, 466
Percopsis, 651
Periophthalmus, 487
Peristethus, 481
Permian fishes, 197
Peruvian district, 280
Pesce Rey, 501
Petalopteryx, 480
Petenia, 536
Peters, 31
Petrodus, 329
Petromyzon, 692
Petrosal, 56
Petroscirtes, 494
Phaneropleuridæ, 360
Pharyngeal bones, 58
Pharyngognathi, 523
Pholidichthys, 498
Pholidophorus, 368
Photichthys, 629
Phractocephalus, 568
Phrynorhombus, 555
Phycis, 543
Phyllodus, 526
Phyllopteryx, 682
Physiculus, 543
Physostomi, 559
Piabuca, 610
Piabucina, 610
Pickerell, 624
Pike, 624
Pike-perch, 378
Pilchard, 660
Pileoma, 379
Pilot-fish, 444
Pimelepterus, 410
Pimelodus, 568
Pimephales, 596
Pinguipes, 466
Pipe-fishes, 680
Piramutana, 568
Piratinga, 568
Pirinampus, 569
Piso, 7
Pituitary gland, 98
Placodermi, 351
Placoid scales, 48
Plagiostomata, 313
Plagiotremus, 498
Plagusia, 559
Plagyodus, 586
Plaice, 557
Pla-kat, 519
Platax, 448
Platinx, 656
Platycephalus, 477
Platycornus, 421
Platyglossus, 529
Platynematichthys, 566
Platypoecilus, 618
Platyptera, 489
Platyrhina, 342
Platysomidæ, 370
Platystethus, 450
Platystoma, 568
Platystomatichthys, 568
Platytroctes, 664
Playfair, 29
Plecoglossus, 646
Plecostomus, 576
Plectropoma, 382
Plesiops, 418
Pleurapophyses, 52
Pleurolepidæ, 366
Pleuronectes, 557
Pleuronectidæ, 553
Pleuropholis, 368
Plinthophorus, 666
Plionemus, 442
Plotosus, 563
Podabrus, 480
Podocys, 421
Poecilia, 617
Poeciloconger, 674
Poecilopsetta, 557
Poey, F., 31
Pogonias, 427
Poisonous fishes, 189
Poisson bleu, 650
Pollack, 541
Pollan, 649
Polyacanthus, 516
Polycaulus, 480
Polycentrus, 418
Polyipnus, 628
Polymixia, 423
Polynemus, 425
Polyodontidæ, 362
Polyprion, 382
Polypteroidei, 363
Polypterus, 364
Polyrhizodus, 330
Pomacanthus, 401
Pomacentrus, 525
Pomatomus, 395
Pomotis, 396
Pompilus, 444
Pope, 378
Porbeagle, 320
Porgy, 408
Porichthys, 468
Portheus, 500
Porthmeus, 446
Port Jackson Shark, 330
Porus abdominalis, 123
Porus genitalis, 123, 158
Postclavicula, 59, 92
Postfrontal bone, 57, 89
Post-pliocene fishes, 201
Post-temporal, 59, 92
Pout, 541
Powen, 649
Præoperculum, 38, 54, 90
Præorbital, 54
Prefrontal, 57, 89
Premaxillary, 53, 90
Premnas, 525
Preñadillas, 575
Pretympanic, 55
Priacanthus, 395
Pride, 693
Prionotus, 479
Prionurus, 440
Pristacanthus, 314
Pristidæ, 336
Pristigaster, 660
Pristiophorus, 335
Pristipoma, 385
Pristis, 337
Pristiurus, 326
Prochilodus, 607
Prooticum, 88
Propterus, 368
Propterygium, 70
Prosencephalon, 97
Prosopodasys, 417
Protamia, 372
Protocampus, 681
Protopterus, 356
Protosphyræna, 500
Prototroctes, 652
Prussian carp, 591
Psaliodus, 349
Psammobatis, 342
Psammodiscus, 557
Psammodus, 329
Psammoperca, 378
Psenes, 456
Psephurus, 363
Psettichthys, 556
Psettodes, 554
Psettus, 447
Pseudecheneis, 580
Pseudeutropius, 566
Pseudobagrus, 567
Pseudoberyx, 421
Pseudoblennius, 498
Pseudobranchiæ, 140
Pseudochalceus, 610
Pseudochilinus, 530
Pseudochromis, 466
Pseudodax, 530
Pseudoeleginus, 462
Pseudogobio, 596
Pseudojulis, 529
Pseudolabuca, 604
Pseudoperilampus, 601
Pseudophycis, 542
Pseudoplesiops, 466
Pseudorasbora, 596
Pseudorhombus, 556
Pseudoscarus, 532
Pseudosyngnathus, 680
Pseudovomer, 442
Pseudoxiphophorus, 617
Psilorhynchus, 604
Psychrolutes, 469
Pteraclis, 455
Pteragogus, 530
Pteraspis, 354
Pterichthys, 351
Pteroplatea, 344
Pteridium, 549
Pterois, 415
Pterophyllum, 537
Pteropsarion, 602
Pterygocephalus, 492
Pterygoid, 56
Pterygoplichthys, 576
Ptychacanthus, 314
Ptychobarbus, 595
Ptychodus, 330
Ptycholepis, 368
Ptyonotus, 480
Pycnodontidæ, 366
Pygopterus, 370
Pyloric appendages, 131
Pyrrhulina, 607

Quadrate Bone, 55, 89
Quoy et Gaimard, 26

Radius, 59
Raja, 340
Raniceps, 544
Rasbora, 597
Rasborichthys, 604
Rathke, 32
Ray, 8
Rays of fins, 40
Rays, 335, 341
Red bodies, 147
Red-dace, 599
Red-eye, 599
Red-fin, 599
Red-horse, 589
Red mullet, 404
Regalecus, 522
Reproduction of lost parts, 188
Reproduction, organs of, 157
Respiration, organs of, 135
Rete mirabile, 147
Retropinna, 647
Retzius, 32
Rhabdolepis, 370
Rhacolepis, 421
Rhadinichthys, 370
Rhamphichthys, 666
Rhamphocottus, 480
Rhamphosus, 507
Rhina, 334
Rhinelepis, 576
Rhinellus, 656
Rhinichthys, 596
Rhinobatus, 338
Rhinodon, 323
Rhinodoras, 572
Rhinoglanis, 573
Rhinonus, 549
Rhinoptera, 346
Rhizodus, 365
Rhodeus, 601
Rhomboidichthys, 556
Rhombosolea, 557
Rhombus, 555
Rhynchichthys, 424
Rhynchobatus, 337
Rhynchobdella, 498
Rhynchodus, 349
Rhypticus, 383
Rhytiodus, 608
Rib, 52
Ribbon-fishes, 520
Richardson, 27, 28
Risso, 17
Rita, 567
Rivulus, 615
Roach, 599, 600
Rock-cook, 528
Rockling, 544
Rohteichthys, 597
Rondelet, 5
Rosenthal, 32
Rough Dab, 555
Rudd, 599
Rüppell, 29
Russel, 16

Saccarius, 474
Saccobranchus, 565
Saccodon, 607
Saccopharynx, 670
Sælbling, 645
Sail-fish, 589
Sail-fluke, 555
Salanx, 650
Salarias, 494
Salivary glands, 124
Salminus, 611
Salmo, 631
Salmon, 644
Salmon-trout, 644
Salvelini, 645
Salviani, 5
Samaris, 556
Sand-eel, 550
Sand-piper, 693
Sandy Ray, 341
Sar, 406
Saragu, 406
Sarcodaces, 611
Sardine, 660
Sargina, 406
Sargo, 406
Sargodon, 405
Sargus, 406
Satanoperca, 537
Saurenchelys, 674
Saurichthys, 365
Saurida, 582
Sauridæ, 368
Saurocephalus, 500
Saurodipteridæ, 355
Saurodontidæ, 500
Saurorhamphus, 666
Saurus, 582
Saury, 620
Saw-fishes, 337
Scabbard-fish, 435
Scald-fish, 556
Scales, 45
Scaphaspis, 354
Scaphirhynchus, 362
Scapula, 59, 92
Scapular arch, 59
Scarichthys, 531
Scarus, 526, 530
Scatharus, 406
Scatophagus, 401
Schacra, 602
Schal, 573
Schedophilus, 455
Schell-fisch, 540
Schelly, 649
Schilbe, 566
Schilbichthys, 566
Schizopygopsis, 595
Schizothorax, 595
Schlegel, 29
Schneider, 15
Schultze, 33
Sciades, 568
Sciæna, 429
Sciænidæ, 426
Scissor, 610
Sclerodermi, 684
Sclerognathus, 589
Scolopsis, 389
Scomber, 457
Scombresox, 620
Scombridæ, 456
Scombroclupea, 656
Scombrops, 395
Scopelidæ, 582
Scopelosaurus, 587
Scopelus, 584
Scorpæna, 444
Scorpænichthys, 480
Scorpænidæ, 412
Scorpis, 402
Scup, 408
Scylliodus, 326
Scyllium, 325
Scymnus, 332
Sea-bat, 448
Sea-bream, 405, 408
Sea-cat, 493
Sea-devil, 344, 470
Sea-hedgehog, 687
Sea-horses, 682
Sea-perch, 381
Sea-serpents, 521
Sea-trout, 644
Sea-wolf, 493
Seba, 9
Sebastes, 413
Secondary sexual characters, 176
Seingo, 378
Selache, 322
Selachoidei, 314
Semicossyphus, 530
Semionotus, 368
Semiophorus, 441, 442
Semiplotus, 598
Seriola, 444
Seriolella, 444, 450
Seriolichthys, 444
Serranus, 381
Serrasalmo, 613
Setiform teeth, 126
Sewin, 644
Sexual characters, 176
Shad, 659
Shagreen, 315
Shagreen Skate, 341
Sharks, 314
Shark’s fins, 315
Sheep’s head, 406
Shiner, 599, 603
Shore-fishes, 257
Sicyases, 513
Sicydium, 487
Siebold, 28
Sillago, 464
Silondia, 566
Siluranodon, 566
Silurian fishes, 193
Silurichthys, 566
Siluridæ, 559
Siluris, 565
Siniperca, 376
Sinus rhomboidalis, 99
Siphagonus, 481
Siphonal stomach, 130
Siphonognathus, 533
Siphonostoma, 680
Sirembo, 549
Sirenidæ, 355
Sisor, 580
Skate, 341
Skeleton of—
Amia, 82
Amphioxus, 63
Chondropterygians, 66
Chondrostei, 74
Cyclostomes, 64
Dipnoi, 71
Ganoids, 71
Lepidosteus, 80
Polypterus, 77
Teleostei, 83
Skin, 45
Skip-jack, 447
Skipper, 620
Skull, 51, 85
Skulpin, 489
Smaris, 390
Smear-dab, 557
Smelt, 647
Smerdis, 375
Smiliogaster, 604
Snapper, 408
Snock, 437
Snout, 37
Solander, 13
Sole, 557
Solea, 557
Solenognathus, 682
Solenorhynchus, 678
Solenostoma, 678
Soleotalpa, 559
Sonnerat, 13
Soricidens, 405
Sorubim, 568
South Australian district, 283
Southern temperate zone, 281
Southern zone, 248
Spaniodon, 656
Sparidæ, 405
Sparnodus, 405
Sparoid scales, 46
Spathobatis, 338
Spathodactylus, 656
Spatularia, 362
Spawn-eater, 599
Spear-fish, 589
Sphærodon, 408
Sphærodontidæ, 368
Sphenacanthus, 314
Sphenocephalus, 421
Sphenodus, 319
Sphenoid, 57
Sphenoideum anterius, 89
Sphyræna, 499
Sphyrænodus, 500
Spiegel-Karpfen, 591
Spinacidæ, 330
Spinal chord, 96
Spinal column, 51
Spinax, 332
Spines of fins, 40
Spiracles, 138
Spiral valve, 128
Spirobranchus, 516
Splanchnoskeleton, 85
Spleen, 133
Splenial, 54, 91
Sprat, 659
Spratelloides, 662
Squaliobarbus, 602
Squaloraja, 335
Squamipinnes, 397
Squamosal, 88, 89
Stannius, 32, 33
Stare-gazer, 462
Starry Ray, 341
Stegophilus, 581
Stegostoma, 326
Steindachner, 28
Steller, 13
Stenostoma, 421
Sterlet, 361
Sternarchus, 666
Sternoptyx, 627
Sternopygus, 667
Stethojulis, 529
Stichæopsis, 498
Stichæus, 495
Sticharium, 498
Stickleback, 505
Stigmatophora, 681
Sting Rays, 342
Stock-fish, 540, 542
Stomach, 127
Stomias, 629
Stone-bass, 382
Stone-lugger, 596
Stone-roller, 589
Stone Toter, 596
Storer, 29
Strepsodus, 365
Strinsia, 541
Stromateus, 452
Strophodus, 330
Sturgeons, 361
Stygogenes, 575
Stylodontidæ, 368
Stylohyal, 58
Stylophorus, 522
Suboperculum, 38, 55, 91
Suborbital, 91
Sucker, 588
Sucking-fish, 460
Sudis, 586
Sun-fishes, 396, 454, 690
Supraclavicula, 59, 92
Supraoccipital, 56, 87
Supraorbital, 89
Suprascapula, 59
Supratemporal, 91
Surgeon, 439
Suspensorium of mandible, 55
Swammerdam, 7
Sword-fish, 431
Symbranchus, 669
Sympathic nerves, 108
Symphorus, 390
Symphysis, 54
Symphysodon, 537
Symplectic, 55, 89
Sympterygia, 342
Synagris, 390
Synanceia, 416
Synaphobranchus, 671
Synaptura, 558
Syngnathus, 680
Synodontis, 573

Taenianotus, 417
Taeniura, 343
Taractes, 454
Tasmanian sub-region, 248
Taste, organ of, 119
Taurinichthys, 526
Tautoga, 527
Teeth, 121, 124
Teleostei, 373
Telescope-fish, 592
Tellia, 615
Temera, 340
Temnodon, 446
Tenacity of life, 186
Tench, 600
Tephraeops, 406
Tephritis, 555
Tertiary fishes, 200
Testicles, 162, 167
Tetragonolepis, 368
Tetragonopterus, 609
Tetragonurus, 501
Tetranematichthys, 572
Tetraroge, 417
Tetrodon, 688
Teuthididæ, 418
Teuthis, 419
Thalassophryne, 468
Thalassorhinus, 319
Thaleichthys, 647
Thaumas, 334
Thectodus, 330
Therapon, 385
Tholichthys, 172
Thoracic fins, 42
Thornback, 341
Thrissonotus, 370
Thrissopater, 656
Thrissops, 371
Thunberg, 13
Thymallus, 649
Thynnichthys, 595
Thynnus, 457
Thyrsites, 436
Thysanopsetta, 556
Tiger-shark, 327
Tilurus, 180
Tinca, 599
Tongue, 124
Tope, 318
Top-knot, 555
Torgoch, 645
Torpedinidæ, 338
Torpedo, 339
Torsk, 546
Touch, organ of, 120
Toxabramis, 604
Toxotes, 403
Trachelochismus, 513
Trachelyopterus, 572
Trachichthys, 422
Trachinidæ, 462
Trachinops, 418
Trachinopsis, 462
Trachinus, 463
Trachurus, 442
Trachynotus, 447
Trachypterus, 522
Transverse line, 50
Triacanthodes, 684
Triacanthus, 684
Triacis, 319
Triænodon, 319
Triænophorichthys, 487
Triassic fishes, 197
Trichiurichthys, 434
Trichiuridæ, 433
Trichiurus, 436
Trichocyclus, 689
Trichodiodon, 689
Trichodon, 466
Trichogaster, 518
Trichomycterus, 581
Trichonotus, 490
Trichopleura, 417
Trifurcated Hake, 545
Trigla, 478
Triglops, 480
Trigorhina, 338
Triodon, 687
Tripterodon, 406
Tripterygium, 495
Tristichopterus, 365
Tristychius, 314
Trochocopus, 530
Tropical American region, 233
Trout, 644
Trubu, 660
Trumpeter, 412
Trumpet-fish, 509
Trunk, 39
Trygon, 343
Trygonidæ, 342
Trygonorhina, 338
Trypauchen, 489
Tunny, 458
Turbinal, 57, 91
Turbot, 555
Twaite Shad, 659
Tyellina, 326
Tylognathus, 596
Typhlichthys, 618
Typhlonus, 548

Uaru, 536
Ulna, 59
Umbra, 429, 619
Umbrina, 428
Umbrine, 429
Undina, 365
Upeneichthys, 404
Upeneoides, 404
Upeneus, 404
Upokororo, 652
Uraleptus, 543
Uranoscopus, 462
Urinary organs, 155
Urocampus, 681
Urocentrus, 498
Uroconger, 674
Urogymnus, 343
Urohyal, 58, 91
Urolophus, 343
Uronectes, 538
Uronemus, 360
Urosphen, 507
Urosthenes, 370
Useful fishes, 189

Vaillant, 31
Valenciennes, 18
Vandellia, 581
Velifer, 397
Vendace, 649
Ventral fins, 42
Vertebral column, 51
Vertical fins, 40
Villiform teeth, 126
Viviparous Blenny, 497
Vogt, 32
Vomer (bone), 56, 89
Vomer (gen.), 441
Vulsus, 489

Wallago, 566
Wardichthys, 370
Weever, 464
Wels, 565
Whiff, 555
White-bait, 658
White-fish, 599, 648
Whiting, 541
Whiting-pout, 541
Willughby, 8
Wrasses, 525

Xenocephalus, 553
Xenocharax, 612
Xenocypris, 598
Xenodermichthys, 664
Xenomystus, 576
Xenopterus, 688
Xiphias, 431
Xiphidion, 496
Xiphiidæ, 431
Xiphochilus, 530
Xiphopterus, 434
Xiphorhampus, 611
Xiphostoma, 611

Yarrell, 27
Yellow-tail, 444

Zanchus, 449
Zaniolepis, 491
Zärthe, 603
Zebra-Shark, 327
Zeus, 451
Zoarces, 497
Zope, 603
Zuzuki, 378
Zygaena, 318
Zygapophyses, 52
Zygobatis, 346