- 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.
Definition
[ n.]