thong seal

from The Collaborative International Dictionary of English v.0.48

Thong \Thong\, n. [OE. thong, [thorn]wong, thwang, AS.
   [thorn]wang; akin to Icel. [thorn]vengr a thong, latchet.
   [root]57. Cf. {Twinge}.]
   A strap of leather; especially, one used for fastening
   anything.
   [1913 Webster]

         And nails for loosened spears, and thongs for shields,
         provide.                                 --Dryden.
   [1913 Webster]

   {Thong seal} (Zool.), the bearded seal. See the Note under
      {Seal}.
      [1913 Webster]