1) Any of various related fish 2) Menticirrhus undulatus 3) Whiting 
(from the article `Plata, Río de la`) ...deep and muddy waters), the pacu (a large river fish with a flat body, almost as high as it is long), the pejerrey (a marine fish, silver in ...
[n] - bluish-gray whiting of California coast
Menticirrhus undulatus noun bluish-grey whiting of California coast
a game fish, Menticirrhus undulatus, of the croaker family, inhabiting Pacific coastal waters of North America. · any of various related fish.