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From Biology-Online Dictionary | Biology-Online Dictionary
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(Science: zoology) The common sand shark. See Snad.

A small California shark (Heptranchias maculatus), which is taken for its oil.

A Pacific ocean shark (Hexanchus corinus).

A ganoid fish of the sturgeon family (Scaphirhynchus platyrhynchus) of the Mississippi and Ohio rivers.

Synonym: white sturgeon.