Humpback smooth-hound Humpback smooth-hound The humpback smooth-hound ("Mustelus whitneyi") is a houndshark of the family Triakidae. It is found on the continental shelves of the tropical southeast Pacific, from Peru to southern Chile, between latitudes 3° S and 54° S, at depths between . Its conservation status is considered to be "vulnerable" by the IUCN. The humpback smooth-hound is a small shark growing to a length of up to . It has a sturdy body with a moderately long, broad, sharply angled snout and large eyes, set widely apart. The mouth is fairly long and the upper lip furrows are longer than
Speckled smooth-hound peduncle is short and the lower lobe of the tail fin is narrow and slightly curved. The maximum length is about with maturity being reached by males at about and females at about . Adults are grey or greyish-brown above and paler below, liberally speckled with white spots. Juveniles have dark bars. The speckled smooth-hound is found off the Pacific coast of South America, including the Galapagos Islands and the Juan Fernández Islands. Its range extends from the Isla Lobos de Tierra in Peru to the southern tip of Chile. It is a demersal fish and swims close to the