Skullfish

Skullfish are skeletal fish enemies in and.

Majora's Mask
In, Skullfish live in the seas around Great Bay, as well as in the water just outside of the Goron Village after defeating Goht. They spawn at certain intervals within the Bay and swim towards Link, biting him if he does not raise his defenses. Zora Link's electrical shield attack can be used to defeat them.

Twilight Princess
In, Skullfish appear in the Lakebed Temple, as well as several secret caves around Hyrule Field. They can be caught with the Fishing Rod, and will even drop a Heart when released, although they are forbidden fish and will not be recorded in the Fish Journal.

Etymology
The Japanese name of the Skullfish, "Sukaruguo," is a combination of Japanese transcript for "Skull," and (fish).