The Alfonsino has a deep compressed body. It has a single short-based dorsal fin. The anal fin has a much longer base and originates below the middle of the dorsal fin. The caudal fin is forked. This species has very large eyes, a large oblique mouth and small ctenoid scales
The Alfonsino is red to pink sometimes shading to a silvery pink below.
It grows to 60 cm in length.
This species occurs in most temperate and tropical marine waters worldwide, with the exception of the north-eastern Pacific. It is found in depths from 180 m to 800 m.
In Australia it is known from off northern New South Wales to south-eastern Tasmania.
View a map of the collecting localities of specimens in the Australian Museum Fish Collection.
The Alfonsino has also been called Imperador, Longfin Beryx and Red Bream. In Australia the official marketing name is Imperador.
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