Spotless smooth-hound consumption of its flesh and fins which are much esteemed. It is caught using gillnets, trawls and longline fishing, either as bycatch or as a targeted species. It is not known whether the level of fishing is sustainable or whether the population is in decline. The IUCN has listed its conservation status of this shark as being "data deficient" and considers that further survey work needs to be done to assess population trends and catch sizes. Spotless smooth-hound The spotless smooth-hound ("Mustelus griseus") is a species of houndshark, in the family Triakidae, found on the continental shelves of the northwest
Dusky smooth-hound the lower is smaller and rounder and the upper has a deep notch. They do not have any fin spines, unlike the spiny dogfish. They have a tapering, blunt snout. They can be gray to brown and their undersides can be white to yellowish gray. Smooth dogfish have the ability to change colors using melanophores to help them camouflage. Newborns have lighter gray edges on their fins and have tail fins edged in white. On average, smooth dogfish are about 48 in long, but can reach up to 5 ft. They have an inter-dorsal ridge. One main characteristic of elasmobranch