2. The small yellow croaker is a fish of the genus Pseudosciaenidae and Pseudosciaena. The body is elongated, the side is flat, and there are many rows of luminous particles in the belly of the body. The head is blunt and pointed, the mouth is large, the mouth is in an end position, inclined, the kiss is not prominent, the length of the maxilla is equal to that of the mandible, and the posterior edge of the maxilla reaches the posterior edge of the orbit; There are 5 rostral foramen, and the inner and outer marginal foramen are laterally split along the rostral lobe, and the rostral lobe is intact and not divided.