Somniosidae
Encyclopedia
Somniosidae is a family of shark
Shark
Sharks are a type of fish with a full cartilaginous skeleton and a highly streamlined body. The earliest known sharks date from more than 420 million years ago....

s in the order Squaliformes
Squaliformes
Squaliformes is an order of sharks that includes about 97 species in seven families.Members of the order have two dorsal fins, which usually possess spines, no anal fin or nictitating membrane, and five gill slits. In most other respects, however, they are quite variable in form and size...

, commonly known as sleeper sharks.

Genera

  • Centroscymnus
    Centroscymnus
    Centroscymnus is a genus of squaliform sleeper sharks in the family Somniosidae.-Species:* Centroscymnus coelolepis...

    Barbosa du Bocage
    José Vicente Barbosa du Bocage
    José Vicente Barbosa du Bocage was a Portuguese zoologist and politician. He was the curator of Zoology at the Museum of Natural History in Lisbon. He published numerous works on mammals, birds, and fishes. In the 1880s he became the Minister of the Navy and later the Minister for Foreign Affairs...

     & Brito Capello, 1864
    • Centroscymnus coelolepis (Barbosa du Bocage
      José Vicente Barbosa du Bocage
      José Vicente Barbosa du Bocage was a Portuguese zoologist and politician. He was the curator of Zoology at the Museum of Natural History in Lisbon. He published numerous works on mammals, birds, and fishes. In the 1880s he became the Minister of the Navy and later the Minister for Foreign Affairs...

       & Brito Capello, 1864)
      (Portuguese dogfish)
    • Centroscymnus cryptacanthus (Regan
      C. Tate Regan
      Charles Tate Regan was a British ichthyologist, working mainly around the beginning of the 20th century. He did extensive work on fish classification schemes....

      , 1906)
      (Shortnose velvet dogfish)
    • Centroscymnus owstoni (Garman, 1906) (Roughskin dogfish)
  • Centroselachus Garman, 1913
    • Centroselachus crepidater (Barbosa du Bocage
      José Vicente Barbosa du Bocage
      José Vicente Barbosa du Bocage was a Portuguese zoologist and politician. He was the curator of Zoology at the Museum of Natural History in Lisbon. He published numerous works on mammals, birds, and fishes. In the 1880s he became the Minister of the Navy and later the Minister for Foreign Affairs...

       & Brito Capello, 1864)
      (Longnose velvet dogfish)
  • Proscymnodon
    Proscymnodon
    Proscymnodon is a genus of fish in the Somniosidae family.It contains the following species:* Proscymnodon macracanthus * Proscymnodon plunketi...

    Fowler
    Henry Weed Fowler
    Henry Weed Fowler was an American zoologist born in Holmesburg, Pennsylvania.He studied at Stanford University under David Starr Jordan...

    , 1934
    • Proscymnodon macracanthus (Regan
      C. Tate Regan
      Charles Tate Regan was a British ichthyologist, working mainly around the beginning of the 20th century. He did extensive work on fish classification schemes....

      , 1906)
      (Largespine velvet dogfish)
    • Proscymnodon plunketi (Waite
      Edgar Ravenswood Waite
      Edgar Ravenswood Waite was a British/Australian ichthyologist, ornithologist and zoologist.Waite was born in Leeds, Yorkshire, England, the second son of John Waite, a bank clerk,...

      , 1910)
      (Plunket shark)
  • Scymnodalatias
    Scymnodalatias
    Scymnodalatias is a genus of squaliform sharks in the family Somniosidae.-Species:* Scymnodalatias albicauda Taniuchi & Garrick, 1986 * Scymnodalatias garricki Kukuyev & Konovalenko, 1988...

    Garrick, 1956
    • Scymnodalatias albicauda Taniuchi & Garrick, 1986 (Whitetail dogfish)
    • Scymnodalatias garricki Kukuyev & Konovalenko, 1988 (Azores dogfish)
    • Scymnodalatias oligodon Kukuyev & Konovalenko, 1988 (Sparsetooth dogfish)
    • Scymnodalatias sherwoodi (Archey
      Gilbert Edward Archey
      Sir Gilbert Edward Archey, C.B.E. was a zoologist, ethnologist, World War I officer, and museum director from New Zealand. He wrote one of the major works on moas, based on his own field work and collection...

      , 1921)
      (Sherwood dogfish)
  • Scymnodon
    Scymnodon
    Scymnodon is a genus of squaliform sharks in the family Somniosidae.-Species:** Scymnodon obscurus ** Scymnodon ringens Barbosa du Bocage & Brito Capello, 1864...

    Barbosa du Bocage
    José Vicente Barbosa du Bocage
    José Vicente Barbosa du Bocage was a Portuguese zoologist and politician. He was the curator of Zoology at the Museum of Natural History in Lisbon. He published numerous works on mammals, birds, and fishes. In the 1880s he became the Minister of the Navy and later the Minister for Foreign Affairs...

     & Brito Capello, 1864
    • Scymnodon obscurus (Vaillant, 1888) (Smallmouth knifetooth dogfish)
    • Scymnodon ringens Barbosa du Bocage
      José Vicente Barbosa du Bocage
      José Vicente Barbosa du Bocage was a Portuguese zoologist and politician. He was the curator of Zoology at the Museum of Natural History in Lisbon. He published numerous works on mammals, birds, and fishes. In the 1880s he became the Minister of the Navy and later the Minister for Foreign Affairs...

       & Brito Capello, 1864
      (Knifetooth dogfish)
  • Somniosus
    Somniosus
    Somniosus is a genus of dogfish sharks in the family Somniosidae.-Species:* Somniosus microcephalus * Somniosus pacificus Bigelow & Schroeder, 1944...

    Lesueur
    Charles Alexandre Lesueur
    Charles Alexandre Lesueur was a French naturalist, artist and explorer.Pictured here is the oil portrait by Charles Willson Peale of Charles-Alexandre Lesueur...

    , 1818
    • Somniosus antarcticus Whitley, 1939 (Southern sleeper shark)
    • Somniosus microcephalus (Bloch
      Marcus Elieser Bloch
      Marcus Elieser Bloch was a German medical doctor and naturalist. He is generally considered one of the most important ichthyologists of the 18th century.- Life :...

       & J. G. Schneider
      Johann Gottlob Schneider
      Johann Gottlob Theaenus Schneider was a German classicist and naturalist.-Biography:Schneider was born at Collm in Saxony...

      , 1801)
      (Greenland shark)
    • Somniosus pacificus Bigelow
      Henry Bryant Bigelow
      Henry Bryant Bigelow was an American oceanographer and marine biologist.After graduating from Harvard in 1901, he began working with famed ichthyologist Alexander Agassiz. Bigelow accompanied Agassiz on several major marine science expeditions including one aboard the Albatross in 1907...

       & Schroeder
      William Charles Schroeder
      William Charles Schroeder was an American ichthyologist. He was born on Staten Island, New York. He, along with his lifelong colleague Henry Bryant Bigelow, made substantial contributions to the knowledge of the fish fauna of the western North Atlantic...

      , 1944
      (Pacific sleeper shark)
    • Somniosus longus (Tanaka, 1912) (Frog shark)
    • Somniosus rostratus (Risso
      Antoine Risso
      Giuseppe Antonio Risso , called Antoine Risso, was a Niçard naturalist.Risso was born in Nice, County of Nice, a part of the Duchy of Savoy, and studied under Giovanni Battista Balbis. He published , and . Risso's dolphin was named after him...

      , 1827)
      (Little sleeper shark)
  • Zameus
    Zameus
    Zameus is a genus of dogfish shark in the family Somniosidae, containing two species.-Species:* Zameus ichiharai * Zameus squamulosus...

    D. S. Jordan
    David Starr Jordan
    David Starr Jordan, Ph.D., LL.D. was a leading eugenicist, ichthyologist, educator and peace activist. He was president of Indiana University and Stanford University.-Early life and education:...

     & Fowler
    Henry Weed Fowler
    Henry Weed Fowler was an American zoologist born in Holmesburg, Pennsylvania.He studied at Stanford University under David Starr Jordan...

    , 1903
    • Zameus ichiharai (Yano & S. Tanaka (II), 1984) (Japanese velvet dogfish)
    • Zameus squamulosus (Günther, 1877) (Velvet dogfish)
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