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SOMNIOSIDAE SLEEPER SHARKS

Taxonomy:

Phylum– Chordata

Class– Chondrichthyles

Subclass– Elasmobranchii

Order– Squaliformes

Common Name– Sleeper Sharks

The Somniosidae are a family of sharks in the order Squaliformes, commonly known as Sleeper sharks. The common name “Sleeper shark” comes from their slow swimming, low activity level, and perceived non-aggressive nature. They can be found in arctic and sub-antarctic waters, to cold waters, to even temperate to warm waters. Most species in this family eat Colossal squid.

Azores Dogfish– Scymnodalatias garricki

Frog Shark– Somniosus longus

Greenland Shark– Somniosus microcephalus

Japanese Velvet Dogfish– Zameus ichiharai

Knifetooth Dogfish– Scymnodon ringens

Largespine Velvet Dogfish– Scymnodon macracanthus

Little Sleeper Shark– Somniosus rostratus

Longnose Sleeper Shark– Somniosus sp. A

Longnose Velvet Dogfish– Centroselachus crepidater

Pacific Sleeper Shark– Somniosus pacificus

Plunket’s Shark or Plunket Shark– Scymnodon plunketi

Portuguese Dogfish or Portuguese Shark– Centroscymnus coelolepis

Roughskin Dogfish– Centroscymnus owstoni

Sherwood Dogfish– Scymnodalatias sherwoodi

Southern Sleeper Shark or Whitley’s Sleeper Shark– Somniosus antarcticus

Sparsetooth Dogfish– Scymnodalatias oligodon

Velvet Dogfish– Zameus squamulosus

Whitetail Dogfish– Scymnodalatias albicauda

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