The Collaborative International Dictionary of English v.0.48:

Margary's fluid \Mar"ga*ry's flu"id\ (-r[i^]z)).
   [Webster 1913 Suppl.] Margate fish \Mar"gate fish"\ (Zool.)
   A sparoid fish (Diabasis aurolineatus) of the Gulf of
   Mexico, esteemed as a food fish; -- called also red-mouth
   grunt.
   [1913 Webster] Margay