  We study finite-dimensional representations of quantum affine algebras of
type $B_N$. We show that a module is tame if and only if it is thin. In other
words, the Cartan currents are diagonalizable if and only if all joint
generalized eigenspaces have dimension one. We classify all such modules and
describe their $q$-characters. In some cases, the $q$-characters are described
by super standard Young tableaux of type $(2N|1)$.
