Noun | 1. | ![]() fish genus - any of various genus of fish family Lutjanidae, Lutjanidae - snappers Lutjanus blackfordi, red snapper - an esteemed food fish with pinkish red head and body; common in the Atlantic coastal waters of North America and the Gulf of Mexico gray snapper, grey snapper, Lutjanus griseus, mangrove snapper - found in shallow waters off the coast of Florida Lutjanus apodus, schoolmaster - food fish of warm Caribbean and Atlantic waters |