What To Look For:
An elongated, eel-like shark with six pairs of gill slits
and a single dorsal fin. The body is dark chocolate-brown,
although in some specimens the underside is pale brown. The
teeth are small and sharp, and it lives on the sea floor,
at depths of between 100 and 1500m.
Males to 1 m; females to 1.4 m.
A patchy distribution worldwide, preferring deep waters on
the outher edge of the continental shelf. Offshore on the
upper slope near the bottom, at 260 m depth; elsewhere, from
120-1280 m; occasionally caugth at the surface or close
Small sharks and bony fish.
Live-bearer, with 8-12 young (50 cm) born every two years.
Danger To Humans:
Not known to be dangerous. Bites fibre-optic cables in the
mid-Atlantic. Fished elsewhere.