Gulf smooth-hound continental shelf between depths of 36 m to 229 m. The maximum recorded size was 140 cm. 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
Starry smooth-hound Starry smooth-hound The starry smooth-hound ("Mustelus asterias") is a houndshark of the family Triakidae. It is found on the continental shelves of the northeast Atlantic, between latitudes 61° N and 16° N, from the surface to a depth of . It can grow up to a length of . The starry smooth-hound grows to a length of about . It is grey or greyish-brown with a scattering of small white spots on its dorsal (upper) surface and white on its ventral (under) surface. It is a long, lean fish with a somewhat rounded snout and rows of shallowly projecting teeth.