fish
inverts
   Annelida
   Arthropoda
     Arachnida
     crustacea
       altocrustacea
       argulus
       crabs
       crayfish
       fairy shrimp
       mutations
       ostrocoda
       clams
       Malacostraca
         About
         Decapoda
           Atyidae
           Desmocarididae
             Desmocaris
               trispinosa
           Palaemonidae
           Penaeidae
     insecta
   Bacteria
   Cnidaria
   Mollusca
   Porifera
   Protozoa
   Rotifera
misc
plants