Fish royal
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
These were the whale and the sfurgeon, which, when thrown ashore or caught near thi coast of England, became the property of the king by virtue of his prerogative and in recompense for his protecting the shore from pirates and robbers.
Brown; 1 Bl. Comm. 290. Arnold v. Mundy, 6 N. J. Law, 86, 10 Am. Dec 356.