The body of Ankang fish is short and soft, without scales, slightly spindle-shaped, with a front cylinder and a flat back. Generally, it is 40-90cm long and weighs 300g-~8KG. Ankang fish has a super big mouth full of teeth and a rare flat body. Besides, its skin is still sticky. However, it is such an ugly guy who is still making contributions to satisfying people's "food". In Europe and North America, millions of people like to eat this delicious big fish, so it is often called "the poor man's oyster". This ankang fish lives on the Atlantic coast. It can be up to 0.90 cm long and weighs 65,438+00 kg! The head is big and flat, the tip of the snout is flat and flat, there is a big bone protrusion in the middle of the snout, and the eye area is wide and slightly concave.

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There are many cortical processes on the edge of the head and body. The mouth is large and wide, superior, inclined, with sharp teeth and black and white markings in the mouth. The mandible protrudes slightly, extending below the eyeball, with L ~ 2 rows of prostrate fangs.

There are villous pointed tooth bands on the maxilla, mandible and vomer. The tongue is wide and long, and the leading edge is round and free. The eyes are the same size, very prominent on the side, the upper edge is covered by eyelids, and the supraorbital protuberance is a bone ridge. Two pairs of nostrils, the front nostril is slightly tubular; The posterior edge of gill cover is spineless. [3]

The pectoral fin is wide and arm-shaped; The ventral fin is small, and the chest position is separated from each other; The trailing edge of the caudal fin is round. The first three spines of dorsal fin are separated. The first spine is located on the back of the snout and has a flap (also known as a cortical nail) at the top. There are some glowing bacteria in the racket, like a bright lamp hanging from a fishing rod. Scales are medium-sized, with scales on the head and gill cover and no lateral lines. Two dorsal fins, not connected; The tail is cylindrical and short. The gluteal fin has 8 ~ 1 1 fin.