| Oryzomys dimidiatus | |
|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Rodentia |
| Family: | Cricetidae |
| Subfamily: | Sigmodontinae |
| Genus: | Oryzomys |
| Species: | O. dimidiatus
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| Binomial name | |
| Oryzomys dimidiatus (Thomas, 1905)
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| Range of Oryzomys dimidiatus (yellow) and the related O. couesi (red and yellow) in Central America. | |
| Synonyms | |
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Oryzomys dimidiatus, also known as the Nicaraguan oryzomys,[4] Thomas's rice rat,[1] or the Nicaraguan rice rat,[5] is a rodent in the family Cricetidae. It is known from only three specimens, all collected in southeastern Nicaragua since 1904. Placed in Nectomys upon its discovery, it was later classified in its own subgenus of Oryzomys and finally recognized as closely related to other species now placed in Oryzomys, including the marsh rice rat and Coues' rice rat, which occurs in the same region.
With a head and body length of 110 to 128 mm (4.3 to 5.0 in), Oryzomys dimidiatus is a medium-sized rice rat. The upperparts are gray-brown and the underparts are grayish, not buffy as in O. couesi. The tail is only slightly darker above than below. All three specimens were caught near water and the species may be semiaquatic, spending some time in the water. Its conservation status is currently assessed as "Data Deficient".
- ^ a b Timm, R.; Reid, F. (2019). "Oryzomys dimidiatus". IUCN Red List of Threatened Species. 2019: e.T15594A22387864. doi:10.2305/IUCN.UK.2019-1.RLTS.T15594A22387864.en. Retrieved 15 November 2021.
- ^ Thomas, 1905, p. 586
- ^ Hershkovitz, 1948, p. 55
- ^ Musser and Carleton, 2005, p. 1148
- ^ Duff and Lawson, 2004, p. 54; Jones and Engstrom, 1986, p. 12