fish
   Anabantiformes
   Anguilliformes
   Atheriniformes
   Characiformes
   Cichlidae
   Cypriniformes
   Cyprinodontiformes
   Gobiiformes
   Perciformes
   Siluriformes
     Diplomystidae
     Loricarioidei
       Astroblepidae
       Callichthyidae
       Loricariidae
         L
         Delturinae
         Hypoptopomatinae
         Hypostominae
         Lithogeneinae
         Loricariinae
         Neoplecostominae
         Otothyrinae
           Corumbataia
           Epactionotus
           Eurycheilichthys
           Hisonotus
             aky
             charrua
           Microlepidogaster
           Otothyris
           Otothyropsis
           Parotocinclus
           Pseudotothyris
           Rhinolekos
           Schizolecis
         sp Rio Paraguay
       Nematogenyidae
       Scoloplacidae
     Siluroidei
     Trichomycteridae
   Synbranchiformes
   more
inverts
plants
misc