The angular roughshark is a benthic shark that lives at depths between 60 and 600 m. They prefer coralline algal and muddy bottoms on continental shelves and upper slopes. It is a solitary species that swims slowly. It has a compresses body, triangular in cross section, with a broad and flattened head. The snout is flat and blunt. They have two relatively large dorsal fins that are sail-like with a spine, and no anal fin. Their color scheme is grey-brown dorsally with dark blotched on its head sides.
They feed on benthic organisms as worms, crustaceans, mollusks and small fish, and other shark eggs as well.
They are ovoviviparous, they produce young by means of eggs which are hatched within the body of the mother. Once the egg hatches, it remains inside the mother for a period of time and is nurtured from within.
Some fisherman say, they scour the bottom with the spine of their first dorsal fin and, belly up, they capture small invertebrates as they dig them up.