The Collaborative International Dictionary of English v.0.48:

Gilthead \Gilt"head`\, n. (Zool.)
   A marine fish. The name is applied to two species:
   (a) The Pagrus auratus (syn. Chrysophrys auratus), a
       valuable food fish common in the Mediterranean (so named
       from its golden-colored head); -- called also giltpoll.
   (b) The Crenilabrus melops, of the British coasts; --
       called also golden maid, conner, sea partridge.
       [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Conner \Con"ner\, n. [Cf. Cunner.] (Zool.)
   A marine European fish (Crenilabrus melops); also, the
   related American cunner. See Cunner.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Cunner \Cun"ner\ (k[u^]n"n[~e]r), n. [Cf. Conner.] (Zool.)
   (a) A small edible fish of the Atlantic coast (Ctenolabrus
       adspersus); -- called also chogset, burgall, blue
       perch, and bait stealer. [Written also conner.]
   (b) A small shellfish; the limpet or patella.
       [1913 Webster]