Smooth-hound
（重定向自Smoothhound）
Mustelus also known as the smooth-hounds is a genus of sharks in the family Triakidae. The name of the genus comes from the Latin word mustela, meaning weasel.
A smooth-hound can grow up to 159 cm (5 ft. 3 in.) long and weigh more than 13 kg (29 lb).