mus giganteus

from The Collaborative International Dictionary of English v.0.48

Bandicoot \Ban"di*coot\, n. [A corruption of the native name.]
   (Zool.)
   (a) A species of very large rat ({Mus giganteus}), found in
       India and Ceylon. It does much injury to rice fields and
       gardens.
   (b) A ratlike marsupial animal (genus {Perameles}) of several
       species, found in Australia and Tasmania.
       [1913 Webster]