The Collaborative International Dictionary of English v.0.48:

Sailor \Sail"or\, n.
   One who follows the business of navigating ships or other
   vessels; one who understands the practical management of
   ships; one of the crew of a vessel; a mariner; a common
   seaman.
   [1913 Webster]

   Syn: Mariner; seaman; seafarer.
        [1913 Webster]

   Sailor's choice. (Zool.)
   (a) An excellent marine food fish (Diplodus rhomboides,
       syn. Lagodon rhomboides) of the Southern United States;
       -- called also porgy, squirrel fish, yellowtail,
       and salt-water bream.
   (b) A species of grunt (Orthopristis chrysopterus syn.
       Pomadasys chrysopterus), an excellent food fish common
       on the southern coasts of the United States; -- called
       also hogfish, and pigfish.
       [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Pinfish \Pin"fish`\, n. [So called from their sharp dorsal
   spines.] (Zool.)
   (a) The sailor's choice (Diplodus rhomboides syn. Lagodon
       rhomboides).
   (b) The salt-water bream (Diplodus Holbrooki).
       [1913 Webster]

   Note: Both are excellent food fishes, common on the coast of
         the United States south of Cape Hatteras. The name is
         also applied to other allied species.
         [1913 Webster]

WordNet (r) 3.0 (2006):

Lagodon rhomboides
    n 1: similar to sea bream; small spiny-finned fish found in bays
         along the southeastern coast of the United States [syn:
         pinfish, sailor's-choice, squirrelfish, Lagodon
         rhomboides]