乐生活Summarize what we call eels.
1. Anguilla, eel, snake eel, Kangji eel, etc. This is a real eel, which belongs to Anguilla, and there is a stage of narrow-headed larvae in its development. Eels are very low bony fish, probably separated from other fishes in the Triassic.
2. Blind eel: The lowest class of fish, belonging to the class Eel, Eel, with mouth opening from left to right and mucous glands on the surface of the body, can secrete large amounts of mucus. All blind eels are cold-water marine fishes, which generally feed on rot, but there are also records of new blind eels predating red knife fish.
3. Seven-gill eel/octopus eel: A close relative of blind eel, Cylindric Eel, as scaleless and jawless as blind eel, but the mouth is funnel-shaped, and the adult mouth is sucker. There are seven branchial foramens at the back of the head leading to the body. The larvae are called "sand cryptozoa", which are filtered, semi-parasitic in vitro or not eaten by adults.
4. Electric eels: Naked-backed fishes, living in America, are close relatives of Lipid carp and catfish. They have no dorsal fins and long buttock fins.
5. Wolf eel: The official name is wolf eel. It belongs to the wolf eel family, the cold-water sea fish, which belongs to the suborder of Perciformes Duffreys.
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1. Anguilla Anguilla
2. Gorgasia preclara
3. Eptatretus Burgeri
4. Ichthyomyzon unicuspis, a species of lamprey
5. Apteronotus albifrons
6. Anarrhichthys felis
