Spisula solidissima

from The Collaborative International Dictionary of English v.0.48
Sea clam \Sea" clam`\ (Zool.)
   Any one of the large bivalve mollusks found on the open
   seacoast, especially those of the family {Mactridae}, as the
   common American species. ({Mactra solidissima} or {Spisula
   solidissima}); -- called also {beach clam}, and {surf clam}.
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from The Collaborative International Dictionary of English v.0.48
Surf \Surf\, n. [Formerly spelled suffe, and probably the same
   word as E. sough.]
   The swell of the sea which breaks upon the shore, esp. upon a
   sloping beach.
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   {Surf bird} (Zool.), a ploverlike bird of the genus
      {Aphriza}, allied to the turnstone.

   {Surf clam} (Zool.), a large clam living on the open coast,
      especially {Mactra solidissima} (syn. {Spisula
      solidissima}). See {Mactra}.

   {Surf duck} (Zool.), any one of several species of sea ducks
      of the genus {Oidemia}, especially {Oidemia
      percpicillata}; -- called also {surf scoter}. See the Note
      under {Scoter}.

   {Surf fish} (Zool.), any one of numerous species of
      California embiotocoid fishes. See {Embiotocoid}.

   {Surf smelt}. (Zool.) See {Smelt}.

   {Surf whiting}. (Zool.) See under {Whiting}.
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from The Collaborative International Dictionary of English v.0.48
Clam \Clam\ (kl[a^]m), n. [Cf. {Clamp}, {Clam}, v. t.,
   {Clammy}.]
   1. (Zool.) A bivalve mollusk of many kinds, especially those
      that are edible; as, the long clam ({Mya arenaria}), the
      quahog or round clam ({Venus mercenaria}), the sea clam or
      hen clam ({Spisula solidissima}), and other species of the
      United States. The name is said to have been given
      originally to the {Tridacna gigas}, a huge East Indian
      bivalve.
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            You shall scarce find any bay or shallow shore, or
            cove of sand, where you may not take many clampes,
            or lobsters, or both, at your pleasure. --Capt. John
                                                  Smith (1616).
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            Clams, or clamps, is a shellfish not much unlike a
            cockle; it lieth under the sand.      --Wood (1634).
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   2. (Ship Carp.) Strong pinchers or forceps.
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   3. pl. (Mech.) A kind of vise, usually of wood.
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   {Blood clam}. See under {Blood}.
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