cran

from WordNet (r) 3.0 (2006)

cran
    n 1: a capacity unit used for measuring fresh herring

from The Collaborative International Dictionary of English v.0.48

Cran \Cran\ (kr[a^]n), Crane \Crane\ (kr[=a]n), n. [Scot., fr.
   Gael. crann.]
   A measure for fresh herrings, -- as many as will fill a
   barrel. [Scot.] --H. Miller.
   [1913 Webster]