Head-and-taillight tetra  (Hemigrammus ocellifer)

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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->
      • Ctenoluciidae - Pike-characids->
      • Bryconidae - Brycon characins->
      • Cynodontidae - Dogtooth characins->
      • Alestidae - African tetras->
      • Characidae - Characins->

        • Brycon - Brycon->
        • Markiana - Markiana->
        • Acanthocharax - Acanthocharax->
        • Acestrocephalus - Acestrocephalus->
        • Acinocheirodon - Acinocheirodon->
        • Acrobrycon - Acrobrycon->
        • Andromakhe - Andromakhe->
        • Axelrodia - Axelrodia->
        • Amazonspinther - Amazonspinther->
        • Aphyocharacidium - Aphyocharacidium->
        • Aphyocharax - Aphyocharax->
        • Aphyocheirodon - Aphyocheirodon->
        • Aphyodite - Aphyodite->
        • Argopleura - Argopleura->
        • Astyanacinus - Astyanacinus->
        • Astyanax - Astyanax->
        • Atopomesus - Atopomesus->
        • Attonitus - Attonitus->
        • Aulixidens - Aulixidens->
        • Bario - Bario->
        • Boehlkea - Boehlkea->
        • Brachychalcinus - Brachychalcinus->
        • Brittanichthys - Brittanichthys->
        • Bryconacidnus - Bryconacidnus->
        • Bryconadenos - Bryconadenos->
        • Bryconamericus - Bryconamericus->
        • Bryconella - Bryconella->
        • Bryconexodon - Bryconexodon->
        • Caiapobrycon - Caiapobrycon->
        • Carlana - Carlana->
        • Ceratobranchia - Ceratobranchia->
        • Charax - Charax->
        • Cheirodon - Cheirodon->
        • Cheirodontops - Cheirodontops->
        • Chrysobrycon - Chrysobrycon->
        • Compsura - Compsura->
        • Coptobrycon - Coptobrycon->
        • Corynopoma - Corynopoma->
        • Creagrutus - Creagrutus->
        • Ctenobrycon - Ctenobrycon->
        • Ctenocheirodon - Ctenocheirodon->
        • Cyanogaster - Cyanogaster->
        • Cynopotamus - Cynopotamus->
        • Dectobrycon - Dectobrycon->
        • Deuterodon - Deuterodon->
        • Diapoma - Diapoma->
        • Ectrepopterus - Ectrepopterus->
        • Eretmobrycon - Eretmobrycon->
        • Erythrocharax - Erythrocharax->
        • Exodon - Exodon->
        • Galeocharax - Galeocharax->
        • Genycharax - Genycharax->
        • Gephyrocharax - Gephyrocharax->
        • Glandulocauda - Glandulocauda->
        • Grundulus - Grundulus->
        • Gymnocharacinus - Gymnocharacinus->
        • Gymnocorymbus - Gymnocorymbus->
        • Gymnotichthys - Gymnotichthys->
        • Hasemania - Hasemania->
        • Hemibrycon - Hemibrycon->
        • Hemigrammus - Hemigrammus->

          • Hemigrammus aereus (Hemigrammus aereus)
          • Hemigrammus analis (Hemigrammus analis)
          • Hemigrammus arua (Hemigrammus arua)
          • Hemigrammus ataktos (Hemigrammus ataktos)
          • Hemigrammus barrigonae (Hemigrammus barrigonae)
          • Hemigrammus bellottii (Hemigrammus bellottii)
          • Hemigrammus boesemani (Hemigrammus boesemani)
          • Hemigrammus brevis (Hemigrammus brevis)
          • Hemigrammus changae (Hemigrammus changae)
          • Hemigrammus coeruleus (Hemigrammus coeruleus)
          • Hemigrammus cupreus (Hemigrammus cupreus)
          • Hemigrammus cylindricus (Hemigrammus cylindricus)
          • Hemigrammus diagonicus (Hemigrammus diagonicus)
          • Hemigrammus durbinae (Hemigrammus durbinae)
          • Hemigrammus elegans (Hemigrammus elegans)
          • Glowlight tetra (Hemigrammus erythrozonus)
          • Head-and-tail-light fish (Hemigrammus falsus)
          • Hemigrammus filamentosus (Hemigrammus filamentosus)
          • Hemigrammus geisleri (Hemigrammus geisleri)
          • Hemigrammus gracilis (Hemigrammus gracilis)
          • Hemigrammus guyanensis (Hemigrammus guyanensis)
          • Hemigrammus haraldi (Hemigrammus haraldi)
          • January tetra (Hemigrammus hyanuary)
          • Hemigrammus iota (Hemigrammus iota)
          • Hemigrammus levis (Hemigrammus levis)
          • Hemigrammus luelingi (Hemigrammus luelingi)
          • Hemigrammus lunatus (Hemigrammus lunatus)
          • Hemigrammus machadoi (Hemigrammus machadoi)
          • Hemigrammus mahnerti (Hemigrammus mahnerti)
          • Hemigrammus marginatus (Hemigrammus marginatus)
          • Hemigrammus matei (Hemigrammus matei)
          • Hemigrammus megaceps (Hemigrammus megaceps)
          • Hemigrammus melanochrous (Hemigrammus melanochrous)
          • Hemigrammus micropterus (Hemigrammus micropterus)
          • Hemigrammus microstomus (Hemigrammus microstomus)
          • Hemigrammus mimus (Hemigrammus mimus)
          • Hemigrammus neptunus (Hemigrammus neptunus)
          • Hemigrammus newboldi (Hemigrammus newboldi)
          • Head-and-taillight tetra (Hemigrammus ocellifer)
          • Hemigrammus ora (Hemigrammus ora)
          • Hemigrammus orthus (Hemigrammus orthus)
          • Hemigrammus parana (Hemigrammus parana)
          • Hemigrammus pretoensis (Hemigrammus pretoensis)
          • Garnet tetra (Hemigrammus pulcher)
          • Hemigrammus rodwayi (Hemigrammus rodwayi)
          • Hemigrammus rubrostriatus (Hemigrammus rubrostriatus)
          • Hemigrammus schmardae (Hemigrammus schmardae)
          • Hemigrammus silimoni (Hemigrammus silimoni)
          • Hemigrammus skolioplatus (Hemigrammus skolioplatus)
          • Hemigrammus stictus (Hemigrammus stictus)
          • Hemigrammus taphorni (Hemigrammus taphorni)
          • Hemigrammus tocantinsi (Hemigrammus tocantinsi)
          • Hemigrammus tridens (Hemigrammus tridens)
          • Hemigrammus ulreyi (Hemigrammus ulreyi)
          • Featherfin tetra (Hemigrammus unilineatus)
          • Hemigrammus vorderwinkleri (Hemigrammus vorderwinkleri)
          • Hemigrammus yinyang (Hemigrammus yinyang)
        • Hyphessobrycon - Hyphessobrycon->
        • Hypobrycon - Hypobrycon->
        • Heterocheirodon - Heterocheirodon->
        • Hollandichthys - Hollandichthys->
        • Hysteronotus - Hysteronotus->
        • Inpaichthys - Inpaichthys->
        • Iotabrycon - Iotabrycon->
        • Jupiaba - Jupiaba->
        • Knodus - Knodus->
        • Kolpotocheirodon - Kolpotocheirodon->
        • Landonia - Landonia->
        • Lepidocharax - Lepidocharax->
        • Leptagoniates - Leptagoniates->
        • Leptobrycon - Leptobrycon->
        • Lophiobrycon - Lophiobrycon->
        • Macropsobrycon - Macropsobrycon->
        • Makunaima - Makunaima->
        • Microgenys - Microgenys->
        • Microschemobrycon - Microschemobrycon->
        • Mimagoniates - Mimagoniates->
        • Mixobrycon - Mixobrycon->
        • Moenkhausia - Moenkhausia->
        • Monotocheirodon - Monotocheirodon->
        • Oxybrycon - Oxybrycon->
        • Nanocheirodon - Nanocheirodon->
        • Nematobrycon - Nematobrycon->
        • Nematocharax - Nematocharax->
        • Odontostilbe - Odontostilbe->
        • Odontostoechus - Odontostoechus->
        • Oligobrycon - Oligobrycon->
        • Oligosarcus - Oligosarcus->
        • Orthospinus - Orthospinus->
        • Othonocheirodus - Othonocheirodus->
        • Paracheirodon - Paracheirodon->
        • Paragoniates - Paragoniates->
        • Parapristella - Parapristella->
        • Parastremma - Parastremma->
        • Parecbasis - Parecbasis->
        • Petitella - Petitella->
        • Phallobrycon - Phallobrycon->
        • Phenacobrycon - Phenacobrycon->
        • Phenacogaster - Phenacogaster->
        • Phenagoniates - Phenagoniates->
        • Phycocharax - Phycocharax->
        • Poptella - Poptella->
        • Rhinobrycon - Rhinobrycon->
        • Rhinopetitia - Rhinopetitia->
        • Piabarchus - Piabarchus->
        • Piabina - Piabina->
        • Planaltina - Planaltina->
        • Priocharax - Priocharax->
        • Prionobrama - Prionobrama->
        • Pristella - Pristella->
        • Prodontocharax - Prodontocharax->
        • Protocheirodon - Protocheirodon->
        • Psalidodon - Psalidodon->
        • Psellogrammus - Psellogrammus->
        • Pseudochalceus - Pseudochalceus->
        • Pseudocheirodon - Pseudocheirodon->
        • Pseudocorynopoma - Pseudocorynopoma->
        • Pterobrycon - Pterobrycon->
        • Ptychocharax - Ptychocharax->
        • Rachoviscus - Rachoviscus->
        • Rhoadsia - Rhoadsia->
        • Roeboexodon - Roeboexodon->
        • Roeboides - Roeboides->
        • Saccoderma - Saccoderma->
        • Schultzites - Schultzites->
        • Scissor - Scissor->
        • Scopaeocharax - Scopaeocharax->
        • Serrabrycon - Serrabrycon->
        • Serrapinnus - Serrapinnus->
        • Spintherobolus - Spintherobolus->
        • Stethaprion - Stethaprion->
        • Stichonodon - Stichonodon->
        • Stygichthys - Stygichthys->
        • Tetragonopterus - Tetragonopterus->
        • Thayeria - Thayeria->
        • Thrissobrycon - Thrissobrycon->
        • Trochilocharax - Trochilocharax->
        • Tucanoichthys - Tucanoichthys->
        • Tyttobrycon - Tyttobrycon->
        • Tyttocharax - Tyttocharax->
        • Varicharax - Varicharax->
        • Xenagoniates - Xenagoniates->
        • Xenurobrycon - Xenurobrycon->
      • 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->