Small-scaled pacu  (Piaractus mesopotamicus)

Taxonomy of Fishes

• Osteichthyes - Bony fishes->

  • Coelacanthi - Lobe-finned fishes->
  • Teleostei - 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->

      • Serrasalmidae - Piranhas and pacus->

        • Pygocentrus - Pygocentrus->
        • Serrasalmus - Serrasalmus->
        • Colossoma - Pacus->
        • Piaractus - Piaractus->

          • Small-scaled pacu (Piaractus mesopotamicus)
          • Red-bellied pacu (Piaractus brachypomus)
        • Acnodon - Acnodon->
        • Catoprion - Catoprion->
        • Metynnis - Metynnis->
        • Mylesinus - Mylesinus->
        • Myleus - Myleus->
        • Myloplus - Myloplus->
        • Mylossoma - Mylossoma->
        • Ossubtus - Ossubtus->
        • Pristobrycon - Pristobrycon->
        • Pygopristis - Pygopristis->
        • Tometes - Tometes->
        • Utiaritichthys - Utiaritichthys->
      • Ctenoluciidae - Pike-characids->
      • Bryconidae - Brycon characins->
      • Cynodontidae - Dogtooth characins->
      • Alestidae - African tetras->
      • Characidae - Characins->
      • Erythrinidae - Trahiras->
      • Anostomidae - Anostomids->
      • Chalceidae - Tucanfishes->
      • Acestrorhynchidae - Smallscale pike characins->
      • Prochilodontidae - flannel-mouthed characins->
      • Triportheidae - Triportheidae->
      • Chilodontidae - Headstanders->
      • Citharinidae - Lutefishes->
      • Crenuchidae - South American darters->
      • Curimatidae - Toothless characins->
      • Distichodontidae - Distichodus->
      • Gasteropelecidae - Freshwater hatchetfishes->
      • Hemiodontidae - Halftooths->
      • Hepsetidae - African pikes->
      • Iguanodectidae - Lizard bite tetras->
      • Lebiasinidae - Pencilfishes->
      • Parodontidae - Scrapetooths->
      • Tarumaniidae - Muck fishes->
    • 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->
  • Cladistii - Bichirs->
  • Dipneusti - Lungfishes->
  • Chondrostei - Sturgeons->
  • Holostei - Gars and Bowfins->
• Chondrichthyes - Cartilaginous fishes->
• Agnatha - Jawless fishes->