1. The black hairy fish is scientifically known as the Spotted Fish, and is a member of the family Perciformes of the Order Perciformes of the Orthopterygian fin-fish family. Also known as melon-snap minnow, commonly known as black hair, vegetable hair, black hair, coarse scales, for one of the species of the family Orthopoda Perciformes Rudderfish. Distributed in the tropical and subtropical waters of the world's oceans. Depth: The depth of the habitat of the class from the intertidal zone to tens of meters are available, the water depth of 1 ~ 30 meters.

2. Characteristics: The fish is oval in shape, purple-black in color, with small black spots on the scales on the side of the body, and many dark spots scattered at the base of the fins, in addition to no other obvious markings on the body. The head is small and the kiss is obtuse, the caudal fin is forked, and the ends of the upper and lower lobes are slightly obtuse. The dorsal fin has 14-15 hard spines and 12-15 soft bars; the anal fin has 3 hard spines and 11-13 soft bars. The number of lateral line scales is 50-56. Body length up to 50 centimeters.