Lampriformes

Regalecidae - Oarfish are large, greatly elongated, pelagic Lampriform comprising the small family Regalecidae.

Trachipteridae - The ribbonfish are any lampriform in the family Trachipteridae.

Lophotidae - Crestfishes are lampriform fishes in the family Lophotidae.

Lampridae - Opah are large, colorful, deep-bodied pelagic Lampriform fish comprising the small family Lampridae .

Veliferidae - Sailfin moonfishes are a small family, Veliferidae, of lampriform fishes.

Radiicephalidae - The Tapertail, Radiicephalus elongatus, is a species of marine fish found in the central and eastern Atlantic and eastern Pacific.

Stylephoridae - It is found in deep subtropical and tropical waters around the world, living at depths during the day and making nightly vertical migrations to feed on plankton.