Common smooth-hound shark but in males, the pelvic fins are modified to form claspers. Like other smooth hounds, the common smooth hound will aggregate in large numbers, like a pack of dogs. This is why they are called hounds. Common smooth-hound The common smooth-hound ("Mustelus mustelus") is a houndshark of the family Triakidae. It is found in the eastern Atlantic Ocean from the British Isles to South Africa, and in the Mediterranean Sea, Madeira, and the Canary Islands at depths ranging from 5 m to 625 m (although they usually stay at depths between 5-50m). While they can grow to 200 cm,
Spotless smooth-hound continental shelf and in semi-enclosed areas of sea at depths down to and possibly as deep as . It is found near the seabed, often over sandy substrates and is thought to feed on crustaceans and other benthic invertebrates. The spotless smooth-hound is viviparous. Males become sexually mature at a length of between and females at . Litter size varies between about five and sixteen pups which are nourished by yolk sac placentas. The gestation period is about ten months and the pups measure about at birth. Maximum recorded age is nine years. The spotless smooth-hound is used for human