The Collaborative International Dictionary of English v.0.48:

Arkite \Ark"ite\, a.
   Belonging to the ark. [R.] --Faber.
   [1913 Webster]

Easton's 1897 Bible Dictionary:

Arkite
   (Gen. 10:17; 1 Chr. 1:15), a designation of certain descendants
   from the Phoenicians or Sidonians, the inhabitants of Arka, 12
   miles north of Tripoli, opposite the northern extremity of
   Lebanon.