Gulf smooth-hound Gulf smooth-hound The Gulf smooth-hound ("Mustelus sinusmexicanus") is a houndshark of the family Triakidae, found on the continental shelves of the tropical western central Atlantic. The reproduction of this houndshark is placental viviparous. The Gulf smooth-hound shark is a type of shark that comes from the Triakidae family. It has a long slender body, a plain grey/brown dorsum, pale/white ventrum and a large and rounded dorsal fin. The fins have a pale to white trailing margin fading towards adulthood. The caudal fin is deeply notched; its teeth are flat and pale. This type of shark can be found in the
Humpback smooth-hound 45°S. Its depth range is between but it is most common between . It is found near the seabed, often on rocky shores, where it feeds on small fish and crustaceans such as crabs and mantis shrimps. It is viviparous and the females bear litters of five to ten young which are about long when born. The humpback smooth-hound is fished for human consumption in Chile but more particularly in Peru, where it is more common. Along with the spotted houndshark ("Triakis maculata") and the speckled smooth-hound ("Mustelus mento") it is known as "tollo" in its local fisheries, and of