THE GENERA OF FISHES. PART IV 



Oligolplarchus, 454 

 Oloplotosus, 551 

 Omiodon, 440 

 Omochsetus, 477 

 Omosudis, 438 

 Onar, 431 

 Oncolepis, 478 

 Onigocia, 549 

 Onychostoma, 471 

 Ophiocephalops, 518 

 Ophiorrhinus, 478 

 Oplithalmolycus, 551 

 Ophthalmotilapia, 510 

 Opisthomyzon, 445 

 Opisthoproctus, 443 

 Opladelus, 573 

 Opostomias, 438 

 Opsigonus, 418, 469 

 OpsopcEa, 473 

 Optonurus, 437 

 Orcella, 473 

 Orcula, 489 

 Oreochromis, 446 

 Oreogobius, 485 

 Oreoleuciscus, 488 

 Orqueta, 567 

 Orthacodus, 449 

 Orthomyleus, 502 

 Orthopleurodus, 425 

 Orthopnias, 541 

 Orthosternarchus, 547 

 Orthrias, 505 

 Orthybodus, 480 

 Oryzias, 519 

 Osbeckia, 474 

 Oshiniia, 567 

 Osopsaron, 509 

 Osteochromis, 535 

 Osteogaster, 464 

 Ostichthys, 474 

 Ostophycephalus, 487 

 Osurus, 504 

 Otakia, 490 

 Othonias, 539 

 Othonophanes. 502 

 Othonops, 417 

 Otohime, 525 

 Otomitla, 454 

 Otopharynx, 572 

 Otoperca, 558 

 Otophidium, 433 



Otrynter, 472 

 Owstonia, 531 

 Oxybarbus, 463 

 Oxycottus, 481 

 Oxygadus, 570 

 Oxygeneum, 431 

 Oxyglanis, 484 

 Oxyzygonectes, 559 

 Oxyodon, 517 

 Oxyropsis,445 

 Ozorthe, 481 

 Ozymandias, 569 

 Pachycara, 541 

 Pachychilon, 421 

 Pachylebias, 496 

 Pachymylus, 460 

 Pachyosteus, 503 

 Pachystomias, 438 

 Pachyula, 483 

 Pagetopsis, 550 

 Pagrosomus, 461 

 Palseaspis, 427, 430 

 Palsecliimaera, 456 

 Palasochromis, 526. 537 

 Palaeomylus, 456 

 Palseospondylus, 453 

 Palseoniscinotus, 452 

 Palaeophichthys, 527 

 Palseosteus, 462 

 Pallasina, 469 

 Palometa, 479 

 Pampanoa, 517 

 Pamphoria, 550 

 Pamphorichthys, 550 

 Pampus, 513 

 Panaque, 446 

 Pantopholis, 431 

 Panturichthys. 549 

 Papyrocephalus, 570 

 Parabarbus, 535 

 Parablennius, 557 

 Paracentroscyllium. 444 

 Paraceratias, 531 

 Paracetopsis, 522 

 Parachela, 417 

 Paracirrhites, 426 

 Paraclinus, 443 

 Paracrossocheilus. 510 

 Paracymatodus. 558 

 Paradicrolene. 444 

 Paradoxichthvs. 419 



Parafundulus, 561 

 Paragambusia, 510 

 Paragobioides, 540 

 Paragonus, 564 

 Paragyrops, 560 

 Paraikichthys, 484 

 Parailia, 485 

 Parakuhlia, 549 

 Paralates, 425 

 Paraleucogobio, 521 

 Paralosa, 560 

 Paralichthodes, 498 

 Paramphilius, 526 

 Paramphioxus, 461 

 Paramyxine, 506 

 Paranotropis, 507 

 Parapelecus, 447 

 Parapercis, 430 

 Parapetenia. 515 

 Paraphago. 485 

 Paraphractura. 496 

 Parapygseus, 526 

 Pararasbora. 530 

 Pararhodeus. 521 

 Pararutilus, 542 

 Parasalanx, 530 

 Parascaphirhynchus, 512 

 Parascolopsis, 492 

 Parascombrops. 450 

 Parasphysenops, 542 

 Parastremma. 543 

 Parasudis, 540 

 Parateleopus, 544 

 Paratrachichthys, 488 

 Parathrissops Sauvage. 



456 

 Parathrissops Eastman 



553 

 Paratrigla. 540 

 Paraturisoma, 545 

 Parauchenoglanis. 538 

 Paravandellia. 545 

 Parazenopsis. 532 

 Parecbasis, 553 

 Parelops. 498 

 Parexostoma, 515 

 Parhaplodactylus. 425 

 Parhomaloptera. 500 

 Parhybodus. 580 

 Paricelinus, 445 

 Parioglossus, 545 



