What are names of scaleless fish?

Eels:

* European Eel (Anguilla anguilla): Found in Europe and North Africa.

* American Eel (Anguilla rostrata): Found in North America.

* Conger Eel (Conger conger): Found in the Atlantic Ocean.

Catfish:

* Channel Catfish (Ictalurus punctatus): Found in North America.

* Blue Catfish (Ictalurus furcatus): Found in North America.

* African Catfish (Clarias gariepinus): Found in Africa.

Other Scaleless Fish:

* Hagfish: These are primitive fish with slime glands instead of scales.

* Lampreys: Similar to hagfish, these are parasitic fish with a circular mouth and sharp teeth.

* Knifefish (Gymnotiformes): Found in South America, these fish have elongated bodies and are known for their bioluminescent abilities.

* Naked Carp (Gymnocypris przewalskii): A unique fish found in China, known for its scaleless body and the absence of a dorsal fin.

Important Note: Many fish have reduced scales or scales that are difficult to see. It's important to note that the term "scaleless" is a bit of a simplification. Some fish may have very small, embedded scales that are not easily visible.