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The rudderfish, Centrolophus niger (also known as Bermuda chub), is a medusafish
Medusafish

Medusafishes are a family, Centrolophidae, of perciform fishes. They are found in temperate and tropical waters throughout the world.Young Icichthys lockingtoni are abundant in the coastal waters of the north Pacific, where they are often found in association with jellyfish, which provides them with protection from predators and o...
, the only member of the genus Centrolophus. It is found in all tropical and temperate oceans of the world, at depths of 50 to 1,000 m
Metre

The metre or meter is a Unit of measurement of length. It is the SI base unit of length in the metric system and in the International System of Units , used around the world for general and scientific purposes....
. Its length is from 60 to 150 cm.

The rudderfish is a moderately elongate blunt-headed fish with long low dorsal
Dorsal fin

A wikt:dorsal fin is a fin located on the backs of some fish, whales, dolphins, and porpoises, as well as the ichthyosaurs. Its main purpose is to stabilize the animal against rolling and assist in sudden turns....
 and anal fins and small pectoral and pelvic fins.






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The rudderfish, Centrolophus niger (also known as Bermuda chub), is a medusafish
Medusafish

Medusafishes are a family, Centrolophidae, of perciform fishes. They are found in temperate and tropical waters throughout the world.Young Icichthys lockingtoni are abundant in the coastal waters of the north Pacific, where they are often found in association with jellyfish, which provides them with protection from predators and o...
, the only member of the genus Centrolophus. It is found in all tropical and temperate oceans of the world, at depths of 50 to 1,000 m
Metre

The metre or meter is a Unit of measurement of length. It is the SI base unit of length in the metric system and in the International System of Units , used around the world for general and scientific purposes....
. Its length is from 60 to 150 cm.

The rudderfish is a moderately elongate blunt-headed fish with long low dorsal
Dorsal fin

A wikt:dorsal fin is a fin located on the backs of some fish, whales, dolphins, and porpoises, as well as the ichthyosaurs. Its main purpose is to stabilize the animal against rolling and assist in sudden turns....
 and anal fins and small pectoral and pelvic fins. The body is covered in small, soft, easily-shed scale
Scale (zoology)

In most biology nomenclature, a scale is a small rigid plate that grows out of an animal's skin to provide protection. In lepidopteran species, scales are plates on the surface of the insect wing, and provide coloration....
s.

Its colour is a uniform dusky brown or black, and the fish is a midwater-living species.