fish
   Anabantiformes
   Anguilliformes
   Atheriniformes
   Characiformes
   Cichlidae
   Cypriniformes
   Cyprinodontiformes
   Gobiiformes
   Perciformes
   Siluriformes
     Diplomystidae
     Loricarioidei
     Siluroidei
       Ailiidae
       Akysidae
       Amblycipitidae
       Amphiliidae
       Anchariidae
       Andinichthyidae
       Aspredinidae
       Auchenipteridae
       Austroglanididae
       Bachmanniidae
       Bagridae
       Candiru
       Cetopsidae
       Chacidae
       Clariidae
       Claroteidae
       Cranoglanididae
       Doradidae
       Ictaluridae
       Erethistidae
       Heptapteridae
       Heteropneustidae
       Horabagridae
       Hypsidoridae
       Kryptoglanidae
       Lacantuniidae
       Malapteruridae
       Mochokidae
       Olyridae
       Pangasiidae
       Parakysidae
       Pimelodidae
       Plotosidae
       Pseudopimelodidae
       Schilbidae
         Ailia
         Clupisoma
         Eutropiichthys
         Irvineia
         Laides
         Neotropius
         Parailia
         Pareutropius
           buffei
           debauwi
           longifilis
           mandevillei
         Platytropius
         Proeutropiichthys
         Pseudeutropius
         Schilbe
         Silonia
         Siluranodon
       Siluridae
       Sisoridae
     Trichomycteridae
   Synbranchiformes
   more
inverts
plants
misc