2. Bamboo pod fish (scientific name: bamboo pod fish) is a kind of fish of the genus bamboo pod fish. The body is nearly cylindrical and slightly flat. Kissing skills. The fat eyelid is well developed, with the front reaching the front line and the back reaching the rear edge of the pupil, leaving a semicircular gap. There are a row of fine teeth on the upper and lower jaws, and there are teeth on the hoe, palate and tongue. The chest is completely squamous. The lateral line is almost straight from the starting point to the bottom of the starting point of the second dorsal fin, then obliquely to the bottom of the 7th-9th fin of the second dorsal fin, and straight from the tail stalk. The lateral line is completely covered with prismatic scales, which is tall and strong, which is an important feature of this genus. There is another lateral line on the back, which extends along the dorsal fin base to below the starting point of the second dorsal fin base. No fins. The back is blue-green or yellow-green, and the abdomen is silvery white. There is a black spot above the posterior edge of the gill cover. The dorsal fin is dark, the pectoral fin is light and the other fins are yellow.

Bamboo pod fish is a kind of warm water fish, which often lives in the middle layer and sometimes near the bottom. In long areas, it is often mixed with blue minnows. Small plankton, such as copepods and cladocera krill larvae, are the main bait in the larval and juvenile stages. From juvenile stage to adult stage, in addition to plankton, there are small fish and cephalopods, such as krill, mysid shrimp, crustacean larvae and sardine larvae. Only distributed in the coastal areas of China and the Pacific Northwest.