fish
   Anabantiformes
   Anguilliformes
   Atheriniformes
   Characiformes
   Cichlidae
   Cypriniformes
   Cyprinodontiformes
   Gobiiformes
   Perciformes
   Siluriformes
     Diplomystidae
     Loricarioidei
       Astroblepidae
       Callichthyidae
         Callichthyinae
         Corydoradinae
           Aspidoras
           Brochis
           Corydoras
           Gastrodermus
             gracilis
             guapore
             hastatus
             napoensis
             nijsseni
             pygmaeus
             undulatus
           Hoplisoma
           Osteogaster
           Scleromystax
           cw
       Loricariidae
       Nematogenyidae
       Scoloplacidae
     Siluroidei
     Trichomycteridae
   more
   Synbranchiformes
inverts
plants
misc