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
       Erethistidae
       Heptapteridae
       Heteropneustidae
       Horabagridae
       Ictaluridae
       Hypsidoridae
       Kryptoglanidae
       Lacantuniidae
       Malapteruridae
       Mochokidae
       Olyridae
       Pangasiidae
       Parakysidae
       Pimelodidae
         Bagropsis
         Brachyplatystoma
           capapretum
           filamentosum
           juruense
             flash-zebra
           platynemum
           rousseauxii
           tigrinum
           vaillantii
         Calophysus
         Hemisorubim
         Hypophthalmus
         Phractocephalus
         Pimelodina
         Pimelodus
         Sorubimichthys
         Zungaro
       Plotosidae
       Pseudopimelodidae
       Schilbidae
       Siluridae
       Sisoridae
     Trichomycteridae
   Synbranchiformes
   more
inverts
plants
misc