The related Paranotothenia magellanica (Maori cod, Magellanic rockcod) is sometimes called "Maori chief" too.

The Maori chief, Notothenia angustata, is a cod icefish in the genus Notothenia

Notothenia

Notothenia is a genus of cod icefishes, ray-finned fish in the family Nototheniidae. They inhabit the cold Southern Ocean and other waters around Antarctica...

 found in the southern ocean between New Zealand

New Zealand

New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...

 and Chile

Chile

Chile ,officially the Republic of Chile , is a country in South America occupying a long, narrow coastal strip between the Andes mountains to the east and the Pacific Ocean to the west. It borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far...

 south to the Antarctic

Antarctic

The Antarctic is the region around the Earth's South Pole, opposite the Arctic region around the North Pole. The Antarctic comprises the continent of Antarctica and the ice shelves, waters and island territories in the Southern Ocean situated south of the Antarctic Convergence...

, at depths down to 100 m in rocky reef

Reef

In nautical terminology, a reef is a rock, sandbar, or other feature lying beneath the surface of the water ....

 areas. Its length is between 30 and 65 cm.

The Maori chief is a large bottom-living fish not too dissimilar to the Maori cod

Maori cod

Paranotothenia magellanica, the Maori cod, is also known as Magellanic rockcod, blue notothenia or orange throat notothen. "Maori chief" and "black cod", sometimes used for this species, usually refer to fishes from the related genus Notothenia. It is a cod icefish in the family Nototheniidae...

. It has a large mouth, a prominent bony ridge above each eye, a rounded caudal fin, and two lateral line

Lateral line

The lateral line is a sense organ in aquatic organisms , used to detect movement and vibration in the surrounding water. Lateral lines are usually visible as faint lines running lengthwise down each side, from the vicinity of the gill covers to the base of the tail...

s which overlap slightly. The first dorsal fin

Dorsal fin

A dorsal fin is a fin located on the backs of various unrelated marine and freshwater vertebrates, including most fishes, marine mammals , and the ichthyosaurs...

 is small with only six spines.

The Maori chief is dark grey or green above, mottled with blue-black, and is yellow on the belly. There are numerous small grey spots and streaks on the head suggesting the complex tattoos once worn by Māori chiefs, and the fins are grey with some darker mottling.

It eats a variety of invertebrate

Invertebrate

An invertebrate is an animal without a backbone. The group includes 97% of all animal species – all animals except those in the chordate subphylum Vertebrata .Invertebrates form a paraphyletic group...

s and small fishes, together with seaweed

Seaweed

Seaweed is a loose, colloquial term encompassing macroscopic, multicellular, benthic marine algae. The term includes some members of the red, brown and green algae...

.