fish
inverts
   Arthropoda
     Arachnida
     crustacea
       altocrustacea
       argulus
       crabs
       crayfish
       fairy shrimp
       mutations
       ostrocoda
       shrimp
         About
         Macrobrachium
         Atya
         Arachnochium
         Atyaephyra
         Atyoida
         Atyopsis
         Australatya
         Caridina
           a
           b
           c
           d
           e
           f
           g
           h
           i
           j
           k
           l
           m
           n
             nanaoensis
             natalensis
             natarajani
             neglecta
             nguyeni
             nilotica
             norvestica
             novaecaledoniae
             nudirostris
           o
           p
           q
           r
           s
           sp
           t
           u
           v
           w
           x
           y
           z
         Halocaridina
         Leptopalaemon
         Micratya
         Neocaridina
         Paracaridina
         Troglocaris
     insecta
   bacteria
   cnidaria
   colonial
   gastropods
   molluscs
   protists
   worms
misc
plants