'Haplodon rufus' definitions:

Definition of 'Haplodon rufus'

From: GCIDE

Sewellel \Se*wel"lel\, n. [Of American Indian origin.] (Zool.) A peculiar gregarious burrowing rodent (Haplodon rufus), native of the coast region of the Northwestern United States. It somewhat resembles a muskrat or marmot, but has only a rudimentary tail. Its head is broad, its eyes are small and its fur is brownish above, gray beneath. It constitutes the family Haplodontidae. Called also boomer, showt'l, and mountain beaver. [1913 Webster]