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
Slender smooth-hound in size. The diet of the slender smooth-hound is diverse, but dominated by small, benthic bony fishes and decapod crustaceans. It exhibits a specialized form of aplacental viviparity with oophagy: the females produce a single capsule in each uterus that contains 30–80 ova, of which one ovum develops into an embryo that consumes the rest of the ova and stores the yolk material in its external yolk sac. The growing embryo is mainly sustained by this yolk sac during gestation, though it may be additionally supplied with histotroph ("uterine milk") produced by the mother. The typical litter size is two