682 



SPECIAL INDEX. 



Evolution of structures: 



fins, pi. xxx, 456, 457, 458, 



460, 461, 464, 466, 471, 472, 



484, 486, 496 

 pectoral and pelvic girdles, 



pi. xxx, 461, 467, 468. 471, 



484-486, 496 

 scales, pi. xxx, 456, 457, 460, 



463, 465, 466, 472, 496 

 skull and jaws, pi. xxx, 457, 



460, 462, 464, 468, 472, 496 

 swimbladder, pi. xxx, 457, 467, 



468, 484 

 vertebral column, pi. xxx, 457, 



460, 461, 464, 466, 496 

 Exocoetidas, 492 



Fierasferidae, 483 

 Plying fishes, 491 



Gadidas, 498 

 Galaxiidas, 489 

 Ganoidei, 444, 448, 462 

 Gasterosteus, 495 

 Ginglymodi, 448, 466 

 Gonorhynchidae, 471 

 Gymnarchidas, 470 

 Gymnonoti, 474 



Halecomorphi, 448, 466 

 Halosaurus, 483 

 Haplistia, 448, 459 

 Haplomi, 451, 484, 487 

 Hemibranchii, 493 

 Heterocerci, 448, 462 

 Heterognathi, 449, 473 

 Heteromi, 482-484 

 Holocephali, 447 

 Holoptychidse, 448, 459 

 "Holostean" Ganoids, 461, 464 

 Hyodontidae, 449, 470 

 Hypostomides, 505 



Ichthyology, in America, 438; in 



England, 438, 439, 440 

 Ichthyotomi, 445 

 Icosteidae, 503, 504 

 Infraclass, 443, 444 

 Iniomi, 451, 484, 485, 487 

 Isospondyli, 444, 449, 467 



Lamnoidea, 446 

 Lamprididas, 500 

 Lepidosteoidei, 444, 448, 464 

 Leptolepididae, 449, 466 

 Lophobranchii, 493 

 Lyomeri, 482 



Macruridae, 499 

 Malacopteroidei, 444, 449, 467 

 Mastacambelidae, 505 

 Masticura, 446 

 Mesichthyes, 444, 451, 484 

 Mesoganoidei, 448, 465 

 Moray s, 479 

 Mormyridae, 449, 470 

 Mugilidae, 497 



Nematognathi, 438, 475 

 Nomeidae, 502-504 

 Nomeiformes, 502 

 Notacanthus, 483 

 Notopteridas, 449, 470 



Oligopleuridas, 449, 466 



Opahs, 500 



Opisthomi, 505 



"Order," content of term, 442 



Ostariophysi, 440, 444, 449, 467, 



473 ; 

 Osteoglossidae, 449, 469 

 Osteolepidas, 448, 456, 458, 459 



Palasoniscidse, 462, 463 



Pegasidae, 505 



Percesoces, 485, 494, 497 



Percomorphi, 502 



Percopsidae, 451, 485 (sand-rollers), 



490 

 Pholidophoridae, 448, 465, 466 

 Phractolasmus, 470. 

 Phylogeny and classification, 441 

 Phylogeny of the Actinopterous 



Fishes, pi. xxix 

 Physoclistous fishes, 484, 492 

 Physostomous fishes, 467, 484, 492 

 Plagiostomi, 445 

 Plectospondyli, 477, 478 

 Pleuracanthides, 445 

 Pleuropterygii, 445 

 Pceciliidae, 488 

 Polynemidas, 498 

 Polyodontidae, 448, 462 

 Polypteridas, 448, 457-459 

 Prosarthri, 446 

 Protospondyli, 448, 465 

 Pycnodonti, 448, 465 



Remoras, sucking disc of, 441 

 Rhinae, 446 

 Rhinobati, 446 

 Rhizodontidae, 448, 459 



Salmonidae, 471 



Salmopercae, 451, 485, 490, 491 



