crabeater

noun3

1. •
   An Antarctic seal (Lobodon carcinophagus) that feeds on krill.

   • Although crabeaters often gather on the ice in large numbers, pupping takes place in small groups. — 2002
2. •
   A cobia or sergeant fish (Rachycentron canadum).
3. •
   A little bittern; a bird of species Ixobrychus minutus.