Unidentified eel species aboard a Xyrillian ship.

Eels are multiple species of elongated fish which inhabit Earth and other planets. On Earth, they can be found in both oceanic and freshwater environments. Some, such as the electric eels and lamprey eels; are not biologically related to "true eels", which are members of the order Anguilliformes.

The Colo Claw Fish, an eel

Many alien species resemble and/or are identified as eels.

Sapient eels:

Non-sapient eels:

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