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Ash-colored Oldfield Mouse
Thomasomys cinereus
The ash-colored Oldfield mouse (Thomasomys cinereus) is a species of rodent in the genus Thomasomys. It is found in montane forests of the Department of Cajamarca in northern Peru, at elevations of 1,524 to 3,818 metres (5,000 to 12,526 ft). Until 2023, it was thought to be more widely distributed, ranging into southern Ecuador, but these populations are now identified as three separate, closely related species, T. lojapiuranus, T. pagaibambensis, and T. shallqukucha.
With a head-body length of 114 to 148 millimetres (4.5 to 5.8 in), Thomasomys cinereus is a medium-sized species for the genus. Distinguishing characteristics compared to its close relatives include, among others:
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This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 44855.