fish
   Anabantiformes
   Anguilliformes
   Atheriniformes
   Characiformes
     Alestoidea
     Anostomoidea
     Characoidea
     Citharinoidei
     Curimatoidea
       Chilodontidae
       Curimatidae
       Cynodontidae
       Hemiodontidae
       Prochilodontidae
       Serrasalmidae
         Colossomatinae
         Serrasalminae
           Catoprion
           Metynnis
           Myleus
           Pygocentrus
           Pygopristis
           Serrasalmus
             altispinis
             altuvei
             auriventris
             brandtii
             careospinus
             compressus
             eigenmanni
             elongatus
             geryi
             gibbus
             gouldingi
             hastatus
             hollandi
             humeralis
             irritans
             maculatus
             manueli
             marginatus
             medinai
             nalseni
             neveriensis
             nigricans
             nigricauda
             odyssei
             rhombeus
             sanchezi
             serrulatus
             species 2
             spilopleura
         Myleinae
     Erythrinoidea
   Cichlidae
   Cypriniformes
   Cyprinodontiformes
   Gobiiformes
   Perciformes
   Siluriformes
   Synbranchiformes
   more
inverts
plants
misc