
EmperorsLethrinidae
Emperors (Lethrinidae) are deep-bodied, compressed marine fishes with a fusiform to oval shape, possessing a continuous dorsal fin and a forked caudal fin. Most species are drab grey, brown, or silver, often marked with spots, lines, or blotches, though some display reddish tints on their fins. Sizes range from 20 cm (7.9 in) to over 100 cm (39 in) in length, with many 🌊 Red Sea species commonly reaching 50-80 cm (20-31 in). The family name Lethrinidae derives from the Greek "lethros," referring to a habit of burying in sand.
These fishes inhabit diverse benthic environments, including shallow reef flats, seagrass beds, and deeper sandy or rubble bottoms, down to 100 m (330 ft). They are primarily carnivorous, preying on crustaceans, molluscs, echinoderms, worms, and small fishes, utilising strong jaws and conical or molariform teeth for crushing. Emperors are typically encountered solitarily or in small groups, often seen foraging over sandy areas adjacent to reefs.
- deep, compressed, oval body
- single continuous dorsal fin
- distinctly forked caudal fin
- body colouration usually grey, brown, or silver
- solitary or small groups foraging over sand flats
12 species in Emperors
Other oval-bodied groups
Similar silhouette underwater - worth a look if this was not your animal.
Last Update: August 3, 2026















