Knife gaper  (Champsodon machaeratus)

Taxonomy of Fishes

• Osteichthyes - Bony fishes->

  • Actinistia - Lobe-finned fishes->
  • Actinopteri - Ray-finned fishes->

    • Perciformes - Perches->
    • Cypriniformes - Carps->
    • Esociformes - Pikes->
    • Salmoniformes - Salmons and Trouts->
    • Siluriformes - Catfishes->
    • Scorpaeniformes - Mail-cheeked fishes->
    • Gasterosteiformes - Sticklebacks->
    • Gadiformes - Cods->
    • Anguilliformes - Eels and morays->
    • Clupeiformes - Herrings->
    • Syngnathiformes - Pipefishes and Seahorses->
    • Gobiiformes - Gobies->
    • Mugiliformes - Mullets->
    • Carangiformes - Jacks->
    • Beloniformes - Needlefishes->
    • Labriformes - Wrasses->
    • Scombriformes - Mackerels->
    • Mulliformes - Goatfishes->
    • Pleuronectiformes - Flatfishes->
    • Aulopiformes - Grinners->
    • Blenniiformes - Blennies->
    • Cyprinodontiformes - Toothcarps->
    • Osmeriformes - Smelts->
    • Centrarchiformes - Basses and sunfishes->
    • Cichliformes - Cichlids->
    • Characiformes - Characins->
    • Osteoglossiformes - Bony tongues->
    • Elopiformes - Tarpons and tenpounders->
    • Anabantiformes - Gouramies and snakeheads->
    • Gymnotiformes - South American knifefish->
    • Istiophoriformes - Barracudas->
    • Albuliformes - Bonefishes->
    • Lepidogalaxiiformes - Salamanderfishes->
    • Lophiiformes - Anglerfishes->
    • Spariformes - Breams and porgies->
    • Trachiniformes - Weeverfishes->
    • Moroniformes - Temperate basses->
    • Acanthuriformes - Surgeonfishes->
    • Zeiformes - Dories->
    • Tetraodontiformes - Puffers and filefishes->
    • Holocentriformes - Squirrelfishes->
    • Dactylopteriformes - Flying gurnards->
    • Lampriformes - Lamprids->
    • Galaxiiformes - Southern smelts->
    • Batrachoidiformes - Toadfishes->
    • Hiodontiformes - Mooneyes->
    • Percopsiformes - Trout-perches->
    • Callionymiformes - Dragonets->
    • Atheriniformes - Silversides->
    • Notacanthiformes - Spiny eels->
    • Saccopharyngiformes - Swallowers and Gulpers->
    • Alepocephaliformes - Slickheads and tubeshoulders->
    • Gonorynchiformes - Milkfishes->
    • Argentiniformes - Marine smelts->
    • Stomiiformes - Lightfishes and dragonfishes->
    • Ateleopodiformes - Jellynose fishes->
    • Myctophiformes - Lanternfishes->
    • Stylephoriformes - Tube-eyes->
    • Polymixiiformes - Beardfishes->
    • Beryciformes - Sawbellies->
    • Trachichthyiformes - Rughies->
    • Ophidiiformes - Cusk-eels->
    • Kurtiformes - Nurseryfishes & Cardinalfishes->
    • Synbranchiformes - Swamp eels->
    • Gobiesociformes - Clingfishes->
    • Acropomatiformes - Oceanic basses->

      • Lateolabracidae - Asian seabasses->
      • Synagropidae - Splitfin ocean-basses->
      • Polyprionidae - Wreckfishes->
      • Acropomatidae - Lanternbellies, temperate ocean-basses->
      • Banjosidae - Banjofishes->
      • Bathyclupeidae - Deepsea herring->
      • Champsodontidae - Crocodile toothfishes->

        • Champsodon - Champsodon->

          • Blackfin gaper (Champsodon atridorsalis)
          • Gaper (Champsodon capensis)
          • Champsodon fimbriatus (Champsodon fimbriatus)
          • Gunther’s sabre-gills (Champsodon guentheri)
          • Gaper (Champsodon longipinnis)
          • Knife gaper (Champsodon machaeratus)
          • Gaper (Champsodon nudivittis)
          • Champsodon omanensis (Champsodon omanensis)
          • Sheath gaper (Champsodon pantolepis)
          • Arrow gaper (Champsodon sagittus)
          • Champsodon sechellensis (Champsodon sechellensis)
          • Snyder's gaper (Champsodon snyderi)
          • Greedy gaper (Champsodon vorax)
      • Creediidae - Sandburrowers->
      • Dinolestidae - Long-finned pike->
      • Epigonidae - Deepwater cardinalfishes->
      • Hemerocoetidae - Indo-Pacific duckbills->
      • Howellidae - Oceanic basslets->
      • Leptoscopidae - Southern sandfishes->
      • Malakichthyidae - Temperate ocean-basses->
      • Ostracoberycidae - Shellskin alfonsinos->
      • Pempheridae - Sweepers->
      • Pentacerotidae - Armorheads->
      • Scombropidae - Gnomefishes->
      • Stereolepididae - Giant seabasses->
      • Symphysanodontidae - Slopefishes->
  • Cladistii - Bichirs->
  • Dipnoi - Lungfishes->
  • Chondrostei - Sturgeons and Paddlefishes->
  • Holostei - Gars and Bowfins->
• Chondrichthyes - Cartilaginous fishes->
• Agnatha - Jawless fishes->