title: Agamyxis
text: # Agamyxis
  
  Agamyxis is a genus of thorny catfishes.
  
  ## Species
  
  There are currently two recognized species in this genus:
  
  * Agamyxis albomaculatus (W. K. H. Peters, 1877) (Spiny cat-fish)
  * Agamyxis pectinifrons (Cope, 1870) (Spotted Raphael catfish, Spotted doradid, Whitebarred catfish)
  
  ## Distribution
  
  This genus is found in tropical South America.
  
  ## Description
  
  Both species reach about 15 centimetres (6 in) SL. These species both appear very similar; A. albomaculatus might be slimmer, have more spots and a different pattern on its caudal fin.
  
  ## Ecology
  
  These catfish are able to make sounds by grinding their pectoral fin bones against their shoulder bones. They can live for 17 years.
  
  ## In the aquarium
  
  Both species in this genus are popular in the aquarium trade.
  
  