What does "prehistoric creature" zombie fish look like? Where does it live? What kinds do you have?

Zombie fish, also known as eight-eye eel, Qixingzi, etc., is an ancient animal of the order Coleoptera and Seven Gill Eel, which does not belong to the same class of fish and is not a fish. So, what does the "prehistoric creature" zombie fish look like? Where does it live? What kinds do you have?

What does the "prehistoric creature" zombie fish look like?

The zombie fish looks like an ordinary eel, with a slender, eel-shaped body, bare and scaleless skin, and a long dorsal fin on its back that extends back to the end of the tail and forms a caudal fin around the tail. there are no other fins on its body. There are 2 dorsal fins with well-developed oral funnel and no moustache. Lampreys have only one nostril, located between the top of the head and the eyes. Developed eyes, pineal eyes, photosensitive. There are seven Gill holes on each side of the body behind the eyes, which is why it is called lamprey. The inner ear has two semicircular canals. The end of the nasal pouch is the caecum. Hermaphroditic, the development has to go through a long larval stage, menstrual metamorphosis into an adult. Adult semi-parasitic life is harmful to the fishery.

Second, where does it live?

Zombie fish are found in Arctic waters, including the Bering Sea, the coast of Korea, the North Pacific Ocean off the coast of Japan and the freshwater waters of Canada, Mongolia and the northeast of the mainland. High society in Europe has regarded it as a delicacy since the Middle Ages.

What are the species of zombie fish?

1. American stream lampreys: American stream lampreys are non-parasitic lampreys, mainly living in streams in the northeastern United States. They use mouth plates to remove stones from the riverbed to build a nest for their eggs. Adult American stream lampreys survive for about a month and do not eat.

2. Sea eel: sea eel, which comes from the Atlantic Ocean, is attached to larger fish in addition to nesting with mouth plates, and then uses its tongue to dig holes in other fish and suck its blood. It will live on this fish for about two years. Then it migrates to the stream to complete spawning.

3. Japanese seven-Gill eel: Japanese lampreys have no lateral teeth, two dorsal fin bases are connected, the total adult length can reach 400 million 500 mm, each end of the upper lip plate has one tooth, three pairs of medial teeth, all have two teeth head, lower lip plate teeth six plates, with tooth tongue. Distributed in Heilongjiang, Tumen, Korea, Japan and other places.

4. Northeast lampreys: northeast lampreys have lateral teeth and there is a significant distance between the two dorsal fins. Distributed in the Yalu River, the eastern mountain tributaries of the Liao River, the Prince River, the Hun River, the Biliu River of the Liaodong Peninsula, the Tonghua Hun River of Jilin Province, the Jiamusi section of the Songhua River, North Korea, the Russian far East and other places.

5. Arctic lampreys: arctic lampreys are about 30 centimeters long and live in fresh water. Their mouths are cylindrical and have no upper or lower jaws. Their mouth is very similar to the eyes of human eyes, but they are full of sharp teeth and live by sucking the blood of other fish. Its appearance inspired many monster shapes in movies.