title: Bostrychus aruensis
text: # Bostrychus aruensis
  
  Bostrychus aruensis, the island gudgeon, is a species of fish in the family Eleotridae, an endemic fish of the Aru Islands, Indonesia, where it occurs in both fresh and brackish waters. It grows up to 18 centimetres (7.1 in) SL.
  
  