fish
   Anabantiformes
   Anguilliformes
   Atheriniformes
   Characiformes
     Alestoidea
     Anostomoidea
     Characoidea
       Acestrorhynchidae
       Bryconidae
       Chalceidae
       Characidae
         Aphyocharacinae
         Aphyoditeinae
         Brachychalcinus
         Characinae
         Cheirodontinae
         Exodontinae
         Gymnocharacinae
         Jupiaba
         Stethaprioninae
         Stevardiinae
         Tetragonopterinae
           Deuterodon
             aphos
             burgerai
             giton
             hamatilis
             hastatus
             heterostomus
             iguape
             intermedius
             janeiroensis
             langei
             longirostris
             luetkenii
             mutator
             oyakawai
             pedri
             pelecus
             ribeirae
             rosae
             sazimai
             singularis
             stigmaturus
             supparis
             taeniatus
           Tetragonopterus
         misc
       Crenuchidae
       Ctenoluciidae
       Gasteropelecidae
       Hepsetidae
       Iguanodectidae
       Lebiasinidae
       Parodontidae
       Triportheidae
     Citharinoidei
     Curimatoidea
     Erythrinoidea
   Cichlidae
   Cypriniformes
   Cyprinodontiformes
   Gobiiformes
   Perciformes
   Siluriformes
   Synbranchiformes
   more
inverts
plants
misc