Menidia notata

from The Collaborative International Dictionary of English v.0.48

Silversides \Sil"ver*sides`\, n. (Zool.)
   Any one of several species of small fishes of the family
   {Atherinidae}, having a silvery stripe along each side of the
   body. The common species of the American coast ({Menidia
   notata}) is very abundant. Called also {silverside}, {sand
   smelt}, {friar}, {tailor}, and {tinker}.
   [1913 Webster]

   {Brook silversides} (Zool.), a small fresh-water North
      American fish ({Labadesthes sicculus}) related to the
      marine silversides.
      [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Atherine \Ath"er*ine\, n. [NL. atherina, fr. Gr. ? a kind of
   smelt.] (Zool.)
   A small marine fish of the family {Atherinid[ae]}, having a
   silvery stripe along the sides. The European species
   ({Atherina presbyter}) is used as food. The American species
   ({Menidia notata}) is called {silversides} and {sand smelt}.
   See {Silversides}.
   [1913 Webster]