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  2. Pacific spiny dogfish - Wikipedia

    en.wikipedia.org/wiki/Pacific_spiny_dogfish

    The Pacific spiny dogfish has a unique system of ventilation. This type of dogfish has five gills on each side of their heads, but do not have gill covers like bony fish. The shark is able to breathe with these gills by swimming or staying in a current. The Pacific spiny dogfish also has a special feature called a spiracle.

  3. Spiny dogfish - Wikipedia

    en.wikipedia.org/wiki/Spiny_dogfish

    The spiny dogfish (Squalus acanthias ... Those in the northern Pacific Ocean were reevaluated in 2010 and found ... Attached to the gill region of the pup is a yolk ...

  4. Squaliformes - Wikipedia

    en.wikipedia.org/wiki/Squaliformes

    Dogfish sharks: 3 31 Dogfish sharks have two dorsal fins, each with smooth spines, but no anal fin. Their skin is generally rough to the touch. [18] These sharks are characterized by teeth in upper and lower jaws similar in size; caudal peduncle with lateral keels; upper precaudal pit usually present; and a caudal fin without a subterminal notch.

  5. List of cartilaginous fish - Wikipedia

    en.wikipedia.org/wiki/List_of_cartilaginous_fish

    Squalus griffini Phillipps, 1931 (Northern spiny dogfish) Squalus hemipinnis W. T. White , Last & Yearsley , 2007 (Indonesian shortsnout spurdog) Squalus japonicus Ishikawa , 1908 (Japanese spurdog)

  6. Spiny creature with fins like a bird wing found swimming off ...

    www.aol.com/spiny-creature-fins-bird-wing...

    The bird wing scorpionfish sticks to much deeper waters, according to the study, and surrounds just a few islands in the Pacific Ocean. Fiji and the Wallis and Futuna Islands are off the east ...

  7. Squalidae - Wikipedia

    en.wikipedia.org/wiki/Squalidae

    The spiny dogfish has broken several records in the areas of migration and gestation. This shark tends to be a highly migratory species: one shark was recorded as travelling 8,000 km (5,000 miles) after being tagged in Washington state, United States, and found again later in Japan.

  8. List of fishes of the Salish Sea - Wikipedia

    en.wikipedia.org/wiki/List_of_Fishes_of_the...

    Toggle Hexanchiformes (Six-gill sharks) subsection. 6.1 Hexanchidae (Cow sharks) ... Pacific spiny dogfish [6] Squalus suckleyi, JF SJ BB SG NG NS SS HC;

  9. School shark - Wikipedia

    en.wikipedia.org/wiki/School_shark

    Its oil was replaced by a similar product from the spotted spiny dogfish (Squalus suckleyi) and subsequently by lower-potency fish oils from Mexico and South America. [6] The school shark, along with the gummy shark, is the most important species in the southern Australian commercial fishery. [7] It is fished throughout its range and heavily ...