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,
Slender smooth-hound may also receive secondary nutrition in the form of histotroph ("uterine milk") produced by the mother. When the embryo is long, it emerges from the capsule, which by that time has become translucent and gelatinous. Embryos long have well-developed external gill filaments. The external yolk sac is entirely absorbed when the embryo is long and close to being born. Males and females reach sexual maturity at approximately long. Harmless to humans and of no economic value, the slender smooth-hound is occasionally caught incidentally in bottom trawls and on bottom longlines. Much of its northern range lies in little-fished waters, and