Starry smooth-hound


The starry smooth-hound is a houndshark of the family Triakidae. It is found on the continental shelves of the northeast Atlantic, between latitudes 61 and 16° N, from the surface to a depth of.

Description

The starry smooth-hound grows to a length of about. It is grey or greyish-brown with a scattering of small white spots on its dorsal surface and white on its ventral surface. It is a long, lean fish with a somewhat rounded snout and rows of shallowly projecting teeth. The two dorsal fins are of similar shape, but the hindmost one is a little smaller than the foremost. A notch occurs in the upper lobe of the caudal fin and the lower lobe is of medium size.

Distribution and habitat

This species of houndshark is found in the eastern Atlantic Ocean and the Mediterranean Sea. Its range extends from off southern Norway, Scotland, and the North Sea southwards to Algeria, Morocco, and off the Western Sahara. It is found in the whole of the Mediterranean, but not in the Black Sea. It is found on the continental shelf and around islands at depths to at least and prefers places where the seabed is sand or gravel.
This species of houndshark was found in the Thames River of London in 2021, and Plymouth National Marine Park in April 2022

Biology

The starry smooth-hound mostly feeds on crustaceans, such as crabs, lobsters, and slipper lobsters, and molluscs. It matures at a length around. It is an ovoviviparous fish, retaining its eggs in its oviduct, where the young are nourished by the egg yolk and the oviduct's secretions. Seven to 15 young are in a litter, and they are about long at birth.

Status

The IUCN Red List of Threatened Species lists the starry smooth-hound as "near threatened" globally. In the Mediterranean Sea, it is less common and is targeted for human consumption along with the closely related common smooth-hound. Numbers in the Mediterranean have dwindled and in this region it qualifies as "Vulnerable" status as it not plentiful.