sheatfish

/ˈʃiːtˌfɪʃ/
noun
  1. A large freshwater catfish found in Europe and Asia, also called the wels catfish.
    • The sheatfish can grow to be over ten feet long.
    • A giant sheatfish lurked in the deep river pools.
    • Fishermen in the Danube often catch sheatfish weighing hundreds of pounds.