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