Red-toothed snapper (scientific name: Odontamblyopus rubicundus) is a kind of fish belonging to swim bladder family and swim bladder genus. The external teeth of both jaws are sharply curved and sparsely arranged, and exposed when closed; Small internal teeth, 1-2 rows. The eyes are small, buried under the skin, and the body is bare and scaleless. The dorsal fin and caudal fin are connected to the anal fin. They mainly live in shallow sea areas with sediment or silt as the bottom material, with a water depth of 2-20m, and mud caves with a hole depth of 20-30m.