What is "razor shell"

Razor \Ra"zor\ (r[=a]"z[~e]r), n. [OE. rasour, OF. rasur, LL. rasor: cf. F. rasoir, LL. rasorium. See Raze, v. t., Rase, v. t.]

1. A keen-edged knife of peculiar shape, used in shaving the hair from the face or the head; also called a straight razor. ``Take thee a barber's razor.''
   --Ezek. v. 1.

2. a device used for shaving, having a replaceable blade with a very sharp edge; also called safety razor. Also a similar device, made of plastic, in which the blade is neither replaceable nor can be sharpened, intended to be discarded after the blade dulls -- called a disposable razor.

3. (Zo["o]l.) A tusk of a wild boar. Razor fish. (Zo["o]l.)

   1. A small Mediterranean fish ( Coryph[ae]na novacula), prized for the table.

   2. The razor shell.

      Razor grass (Bot.), a West Indian plant ( Scleria scindens), the triangular stem and the leaves of which are edged with minute sharp teeth.

      Razor grinder (Zo["o]l.), the European goat-sucker.

      Razor shell (Zo["o]l.), any marine bivalve shell belonging to Solen and allied genera, especially Solen ensis (or Ensatella ensis), and Solen Americana, which have a long, narrow, somewhat curved shell, resembling a razor handle in shape. Called also razor clam, razor fish, knife handle.

      Razor stone. Same as Novaculite.

      Razor strap, or razor strop, a strap or strop used in sharpening razors.

n. A bivalve mollusc, of species ''Ensis arcuatus'', now ''Ensis magnus'', having a long, straight shell, that burrows in the sand.

The razor shell, Ensis arcuatus, also called razor clam, razor fish, or spoot (colloquially), is a bivalve of the family Pharidae. It is found on sandy beaches in Northern Europe and Eastern Canada, such as Prince Edward Island, where it is very common.

In some locations, the common name "razor shell" is also used to refer to members of the family Solenidae, including species of the genera Ensis and Solen, by some taxonomic classifications which include the family Pharidae within the family Solenidae. It prefers coarser sand than its relatives E. ensis and E. siliqua.