HomeFish encyclopediaSharks and RaysGround sharksHoundsharksGulf smoothhound Gulf smoothhound (Mustelus sinusmexicanus) Scientific name: Mustelus sinusmexicanus Heemstra, 1997 The Gulf smoothhound (Mustelus sinusmexicanus) is a marine fish of the family Triakidae. Native range: Western Central Atlantic, apparently endemic to the Gulf of Mexico, from off Panama City, Florida to the Bay of Campeche. Species factsScientific nameMustelus sinusmexicanusFamilyTriakidae (Houndsharks)OrderCarcharhiniformes (Ground sharks)ClassElasmobranchii (Sharks and Rays)Maximum length83.0Depth range20–250 m (66–820 ft)EnvironmentMarine; pelagic-oceanic; depth range 20 - 250 m, usually 42 - 91 mClimateTropicalDistributionWestern Central Atlantic: apparently endemic to the Gulf of Mexico, from off Panama City, Florida to the Bay of Campeche.Conservation status (IUCN)Data deficient (DD)Threat to humansHarmlessResilienceLow, minimum population doubling time 4.5 - 14 years (Fec assumed to be SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026