The Chinese trumpetfish, Aulostomus chinensis, is a demersal marine fish belonging to the family Aulostomidae. It is a medium-sized fish which grows up to 80 cm in length. Its body is elongated and compressed laterally, with a long, tubular snout which has a small barbel at its inferior extremity. The protusible mouth can be extended forward to catch prey. The body coloration can be uniform or mottled in a range of grey, brown, or dark green. Some fish are uniformly bright yellow. This species is found in tropical and subtropical waters from the Indian Ocean and the Pacific Ocean, but not in the Red Sea. It lives in clear and calm waters in rocky and coral reefs from the surface to 120 m depth.