fish
   Anabantiformes
   Anguilliformes
   Atheriniformes
   Characiformes
   Cichlidae
   Cypriniformes
   Cyprinodontiformes
   Gobiiformes
   Perciformes
   Siluriformes
     Diplomystidae
     Loricarioidei
       Astroblepidae
       Callichthyidae
       Loricariidae
         L
         Delturinae
         Hypoptopomatinae
         Hypostominae
           Acanthicus
           Ancistrus
           Aphanotorulus
           Araichthys
           Baryancistrus
           Chaetostoma
           Dekeyseria
           Guyanancistrus
           Hypancistrus
           Hypostomus
           Lasiancistrus
           Leporacanthicus
           Lithoxini
           Panaqolus
           Panaque
           Parancistrus
           Peckoltia
           Pseudacanthicus
             L-79
             leopardus
             major
             pitanga
           Pseudancistrus
           Pseudolithoxus
           Scobinancistrus
           Spectracanthicus
         Lithogeneinae
         Loricariinae
         Neoplecostominae
         Otothyrinae
         sp Rio Paraguay
       Nematogenyidae
       Scoloplacidae
     Siluroidei
     Trichomycteridae
   Synbranchiformes
   more
inverts
plants
misc