| 1. | an Old World field mouse, Micromys minutus, that builds a spherical nest among the stems of grains and other plants. |
| 2. | any of several New World mice of the genus Reithrodontomys having similar habits. |
harvest mouse
either of two genera of small mice: the American harvest mouse (Reithrodontomys) or the Old World harvest mouse (Micromys).
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