The Collaborative International Dictionary of English v.0.48:

Sculler \Scull"er\, n.
   1. A boat rowed by one man with two sculls, or short oars.
      [R.] --Dryden.
      [1913 Webster]

   2. One who sculls.
      [1913 Webster]

WordNet (r) 3.0 (2006):

sculler
    n 1: someone who sculls (moves a long oar pivoted on the back of
         the boat to propel the boat forward)

Moby Thesaurus II by Grady Ward, 1.0:

19 Moby Thesaurus words for "sculler":
   bargee, bargeman, barger, boat-handler, boater, boatman, boatsman,
   ferrier, ferryman, galley slave, gondolier, lighterman, oar,
   oarsman, punter, rower, waterman, yachter, yachtsman