Knaacks cory  (Corydoras knaacki)

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->

      • Siluridae - Eurasian catfishes->
      • Ictaluridae - North American freshwater catfishes->
      • Pimelodidae - Long-whiskered catfishes->
      • Pangasiidae - Shark catfishes->
      • Astroblepidae - Naked sucker-mouth catfishes->
      • Clariidae - Airbreathing catfishes->
      • Ariidae - Sea catfishes->
      • Plotosidae - Eeltail catfishes->
      • Doradidae - Thorny catfishes->
      • Auchenipteridae - Driftwood catfishes->
      • Bagridae - Naked catfishes->
      • Callichthyidae - Armored catfishes->

        • Hoplosternum - Weaponchest armored catfishes->
        • Aspidoras - Aspidoras->
        • Callichthys - Callichthys->
        • Corydoras - Corydoras->

          • Acre corydoras (Corydoras acrensis)
          • Blacktop corydoras (Corydoras acutus)
          • Adolf’s catfish (Corydoras adolfoi)
          • Bronze corydoras (Corydoras aeneus)
          • Agassiz's corydoras (Corydoras agassizii)
          • White stripe cory (Corydoras albolineatus)
          • Amanda Jane's cory (Corydoras amandajanea)
          • Amapa corydoras (Corydoras amapaensis)
          • Spotted corydoras (Corydoras ambiacus)
          • Mystery cory (Corydoras amphibelus)
          • Arinos cory (Corydoras apiaka)
          • Zebratail cory (Corydoras approuaguensis)
          • Araguaia cory (Corydoras araguaiaensis)
          • Skunk corydoras (Corydoras arcuatus)
          • Hump cory (Corydoras areio)
          • Sail cory (Corydoras armatus)
          • Fairy catfish (Corydoras atropersonatus)
          • Goldhead cory (Corydoras aurofrenatus)
          • Pink corydoras (Corydoras axelrodi)
          • Road cory (Corydoras baderi)
          • Speckled xingu cory (Corydoras benattii)
          • Two-tone cory (Corydoras bicolor)
          • Twostripe corydoras (Corydoras bifasciatus)
          • White striped cory (Corydoras bilineatus)
          • Spotback corydoras (Corydoras blochi)
          • Caura cory (Corydoras boehlkei)
          • Boeseman's catfish (Corydoras boesemani)
          • Blackstripe corydoras (Corydoras bondi)
          • Avanavero cory (Corydoras breei)
          • Spotted collar cory (Corydoras brevirostris)
          • Britski’s catfish (Corydoras britskii)
          • Burgess' cory (Corydoras burgessi)
          • Carla's cory (Corydoras carlae)
          • Tailspot corydoras (Corydoras caudimaculatus)
          • Deer faced cory (Corydoras cervinus)
          • Barredtail corydoras (Corydoras cochui)
          • Slate cory (Corydoras concolor)
          • Schoolmate cory (Corydoras condiscipulus)
          • Lake cory (Corydoras copei)
          • Chop stick cory (Corydoras coppenamensis)
          • Hermit cory (Corydoras coriatae)
          • Blackwater cory (Corydoras crimmeni)
          • Santa cruz cory (Corydoras cruziensis)
          • Yellow head cory (Corydoras crypticus)
          • Sands' cory (Corydoras davidsandsi)
          • False blochi catfish (Corydoras delphax)
          • Sparano cory (Corydoras difluviatilis)
          • Variable cory (Corydoras diphyes)
          • Broad stripe cory (Corydoras duplicareus)
          • Olive cory (Corydoras ehrhardti)
          • Elegant corydoras (Corydoras elegans)
          • Two point cory (Corydoras ellisae)
          • Saddle corydoras (Corydoras ephippifer)
          • Horsemans cory (Corydoras eques)
          • Orocue cory (Corydoras esperanzae)
          • Evelyn's cory (Corydoras evelynae)
          • Guarana cory (Corydoras eversi)
          • Filament cory (Corydoras filamentosus)
          • Yellow cory (Corydoras flaveolus)
          • Fowler's cory (Corydoras fowleri)
          • Fuller's cory (Corydoras fulleri)
          • Bahia cory (Corydoras garbei)
          • Wolf cory (Corydoras geoffroy)
          • Bolivian cory (Corydoras geryi)
          • Gladys' cory (Corydoras gladysae)
          • Leticia cory (Corydoras gomezi)
          • Palespotted corydoras (Corydoras gossei)
          • Shy cory (Corydoras gracilis)
          • Gray corydoras (Corydoras griseus)
          • Dragon fin cory (Corydoras gryphus)
          • Guapore corydoras (Corydoras guapore)
          • Light cory (Corydoras guianensis)
          • Salt and Pepper catfish (Corydoras habrosus)
          • Mosaic corydoras (Corydoras haraldschultzi)
          • Dwarf corydoras (Corydoras hastatus)
          • White cory (Corydoras heteromorphus)
          • Imitator cory (Corydoras imitator)
          • Icana cory (Corydoras incolicana)
          • Brazil long nose cory (Corydoras isbrueckeri)
          • Leopard corydoras (Corydoras julii)
          • Kane's cory (Corydoras kanei)
          • Knaacks cory (Corydoras knaacki)
          • Lacerda's cory (Corydoras lacerdai)
          • Crying cory (Corydoras lacrimostigmata)
          • Lambert's cory (Corydoras lamberti)
          • Wide cory (Corydoras latus)
          • Leopard cory (Corydoras leopardus)
          • False spotted catfish (Corydoras leucomelas)
          • Long-finned cory (Corydoras longipinnis)
          • Loreto cory (Corydoras loretoensis)
          • Dirty bandit cory (Corydoras loxozonus)
          • Nose stribed cory (Corydoras lymnades)
          • Dotted corydoras (Corydoras maculifer)
          • Marmore cory (Corydoras mamore)
          • Bluespotted corydoras (Corydoras melanistius)
          • Green gold catfish (Corydoras melanotaenia)
          • Bandit corydoras (Corydoras melini)
          • Masked corydoras (Corydoras metae)
          • Andes cory (Corydoras micracanthus)
          • Peppered Argentina cory (Corydoras microcephalus)
          • Many spotted cory (Corydoras multimaculatus)
          • Hognosed brochis (Corydoras multiradiatus)
          • Little corydoras (Corydoras nanus)
          • Rio Napo cory (Corydoras napoensis)
          • Long nosed arched cory (Corydoras narcissus)
          • Blue corydoras (Corydoras nattereri)
          • Rio negro cory (Corydoras negro)
          • Nijssen's cory (Corydoras nijsseni)
          • Meander cory (Corydoras noelkempffi)
          • Flag tailed panda cory (Corydoras oiapoquensis)
          • Ornate cory (Corydoras ornatus)
          • Rabbit cory (Corydoras orphnopterus)
          • Loreto panda cory (Corydoras ortegai)
          • Bonehead cory (Corydoras osteocarus)
          • Long nosed smudge spot cory (Corydoras ourastigma)
          • Sharpnosed cory (Corydoras oxyrhynchus)
          • Peppered corydoras (Corydoras paleatus)
          • Panda corydoras (Corydoras panda)
          • Pantanal cory (Corydoras pantanalensis)
          • Paragua cory (Corydoras paragua)
          • Two line cory (Corydoras parallelus)
          • Pastaza corydoras (Corydoras pastazensis)
          • Cuddly cory (Corydoras paucerna)
          • Petracini's cory (Corydoras petracinii)
          • Mario's cory (Corydoras pinheiroi)
          • Fine spotted cory (Corydoras polystictus)
          • Potaro cory (Corydoras potaroensis)
          • Pretty corydoras (Corydoras pulcher)
          • Spotfin corydoras (Corydoras punctatus)
          • Pygmy corydoras (Corydoras pygmaeus)
          • Rust corydoras (Corydoras rabauti)
          • Reticulated corydoras (Corydoras reticulatus)
          • Bumblebee cory (Corydoras reynoldsi)
          • Bannertail catfish (Corydoras robineae)
          • Robust cory (Corydoras robustus)
          • Gojo cory (Corydoras sanchesi)
          • Saramacca cory (Corydoras saramaccensis)
          • Sarare cory (Corydoras sarareensis)
          • Schwartz’s catfish (Corydoras schwartzi)
          • Peru black cory (Corydoras semiaquilus)
          • Northern kongnose cory (Corydoras septentrionalis)
          • Sawtooth cory (Corydoras serratus)
          • Seuss' cory (Corydoras seussi)
          • Smudge spot cory (Corydoras similis)
          • Olga cory (Corydoras simulatus)
          • Nail cory (Corydoras sipaliwini)
          • False network catfish (Corydoras sodalis)
          • Club cory (Corydoras solox)
          • Millennium cory (Corydoras spectabilis)
          • Pinkthroat corydoras (Corydoras spilurus)
          • Emerald catfish (Corydoras splendens)
          • Paraná corydoras (Corydoras steindachneri)
          • Huangana cory (Corydoras stenocephalus)
          • Sterba's cory (Corydoras sterbai)
          • Suriname cory (Corydoras surinamensis)
          • Sychr’s catfish (Corydoras sychri)
          • Longsnout corydoras (Corydoras treitlii)
          • Threestripe corydoras (Corydoras trilineatus)
          • Bumblebee cory (Corydoras tukano)
          • Catfish (Corydoras undulatus)
          • Urucu cory (Corydoras urucu)
          • Sangama cory (Corydoras virginiae)
          • Stripy cory (Corydoras vittatus)
          • Twosaddle corydoras (Corydoras weitzmani)
          • Xingu corydoras (Corydoras xinguensis)
          • Black band catfish (Corydoras zygatus)
        • Dianema - Dianema->
        • Lepthoplosternum - Lepthoplosternum->
        • Megalechis - Megalechis->
        • Scleromystax - Scleromystax->
      • Sisoridae - Asian adhesive catfishes->
      • Malapteruridae - Electric catfishes->
      • Schilbeidae - Schilbid catfishes->
      • Loricariidae - Armoured suckermouth catfishes->
      • Heptapteridae - Three-barbeled catfishes->
      • Ailiidae - Asian schilbeids->
      • Akysidae - Stream catfishes->
      • Amblycipitidae - Torrent catfishes->
      • Amphiliidae - Loach catfishes->
      • Anchariidae - Vaonas->
      • Aspredinidae - Banjo catfishes->
      • Austroglanididae - Austroglanids->
      • Cetopsidae - Whale catfishes->
      • Chacidae - Squarehead or angler catfish->
      • Claroteidae - Claroteid catfishes->
      • Cranoglanididae - Armorhead catfishes->
      • Diplomystidae - Velvet catfishes->
      • Erethistidae - South Asian river catfishes->
      • Heteropneustidae - Airsac catfishes->
      • Horabagridae - Imperial catfishes->
      • Kryptoglanidae - Indian cave catfishes->
      • Lacantuniidae - Chiapas catfishes->
      • Mochokidae - Squeakers or upside-down catfishes->
      • Nematogenyidae - Mountain catfishes->
      • Olyridae - Longtail catfishes->
      • Parakysidae - Parakysid catfishes->
      • Phreatobiidae - Cistern catfishes->
      • Pseudopimelodidae - Bumblebee catfishes, dwarf marbled catfishes->
      • Scoloplacidae - Spiny dwarf catfishes->
      • Trichomycteridae - Pencil or parasitic 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->
  • Cladistii - Bichirs->
  • Dipnoi - Lungfishes->
  • Chondrostei - Sturgeons and Paddlefishes->
  • Holostei - Gars and Bowfins->
• Chondrichthyes - Cartilaginous fishes->
• Agnatha - Jawless fishes->