Related Clues:

• Bluejacket's hail
• ''Stop,'' on the water
• Yachter's greeting
• Fish with a prehensile tail
• Order on the water
• Seagoing shout
• Sailor's ''Hi!''
• Captain's call
• ''Halt, salt!''
• "Hey!" to a mate
• Sinbad's ''Stop!''
• Main call
• Ship-to-shore call?
• Greeting on the seas
• Check from a deck?