Mustelus canis. The answer is yes! Although spiny dogfish and smooth dogfish are around the same size on the average (about 3 feet long, 7-10 pounds), the spiny dogfish has two distinguishing features: rows of small white dots run along its slate-gray sides, and a sharp spine is found in front of each of its two dorsal fins. Habitat, biology, and fisheries. Great hammerhead attains larger maximum size (18.5 ft (5.6 m)); has very high first dorsal fin, pelvic fins with curved rear margins. Smooth dogfish are 1 of only 3 ridgeback sharks that may be retained. Sharks, in general, are highly migratory fishes, but can differ dramatically in shape, size, and natural history. In fact, some species have meat that tastes like swordfish. Fishes PDF updated 4/12/19 . The spiny dogfish, spurdog, mud shark, or piked dogfish (Squalus acanthias) is one of the best known species of the Squalidae (dogfish) family of sharks, which is part of the Squaliformes order. In North America the name is also used for a freshwater NEW Marine Life Trivia . Oceanic sharks, like the blue and mako, largely remain miles offshore, while coastal sharks, like the sand tiger and smooth dogfish, swim close to shore and even enter bays and estuaries. Figure 10.—Smooth dogfish (Mustelus canis), male, about 31 inches long, Woods Hole.A, tooth band of right-hand side of upper jaw, about 1.8 times natural size; B, teeth of another specimen, about 6 times natural size. Smooth Dogfish The world record for smooth dogfish was caught on June 16, 2007 by David Spletzer. Smooth Dogfish - Mustelus canis *Information from FAO Species Identification Guide Western Central Atlantic* Size Maximum total length to 150 cm, common to 100 cm;size at birth between 34 and 39 cm; males maturing at about 82 cm, females at about 90 cm. Smooth dogfish. Family Triakidae - sharks. The permit may be held in combination with any other commercial HMS permit except the Commercial Caribbean Small Boat permit. Ridgeback sharks are sharks that have an interdorsal ridge, or visible line of raised skin, between their dorsal fins. Since sharks expel toxins through their skin, but with proper preparation and timing, the potentially foul taste can be elminated. A Smooth hound Shark permit allows fishermen to target and retain smooth hound sharks (smooth dogfish, Florida smooth hound, Gulf smooth hound). While these common names may apply to several species, Squalus acanthias is distinguished by having two spines (one anterior to each dorsal fin) and lacks an anal fin. Dogfish, (order Squaliformes), any of several small sharks making up an order of chondrichthyian fishes composed of the families Centrophoridae (gulper sharks), Dalatiidae, Echinorhinidae, Etmopteridae, Oxynotidae, Somniosidae, and Squalidae. Can you eat shark? Smooth hammerhead lacks central indentation on anterior margin of head. Find out all you need to know about eating shark here. ... spiracle behind the eyes and both dorsal fins being nearly equal in size.