It is found in deep water south of New Caledonia, and over the Norfolk Ridge.

The bighead spurdog has only been recorded from the waters south of New Caledonia, and from seamounts on the Norfolk Ridge in the northern Tasman Sea.

In the month-long NORFANZ Expedition of 2003 which was examining the biodiversity of the seamounts and slopes of the Norfolk Ridge, 117 specimens averaging 1kg (2.2lb), were collected from four locations.

The Norfolk Ridge is a long submarine ridge running between New Caledonia and New Zealand, about 1300 km off the east-coast of Australia.

Little is known about the Norfolk Ridge; however, it generally lies about 2000 m below sea level and consists of Late Cretaceous continental crust.

This marine species occurs off Norfolk Ridge, New Caledonia.

It forms the highest point on the Norfolk Ridge, part of the submerged continent Zealandia.

It's the largest of a cluster of three islands emer-ging from the Norfolk Ridge, which stretches from New Zealand to New Caledonia, the closest landfall, almost 700km north.

The major submerged parts of Zealandia are the Lord Howe Rise, Challenger Plateau, Campbell Plateau, Norfolk Ridge, and the Chatham Rise.

The false lanternshark, Etmopterus pseudosqualiolus, is a shark of the family Etmopteridae found in the western Pacific from the Norfolk Ridge and Lord Howe Ridge off New Caledonia.