NATURAL HISTORY · CATALOGUE RECORD
Bicolored Arboreal Rice Rat
Oecomys bicolor (Tomes, 1860)
Source-backed taxonomic record
Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.
Open encyclopedia reference
Oecomys bicolor, also known as the white-bellied oecomys or bicolored arboreal rice rat, is a species of rodent in the genus Oecomys of family Cricetidae. It has a wide distribution in the Amazon biome, occurring in northwestern Brazil, northern Bolivia, eastern Peru, eastern Ecuador, eastern Colombia, much of Venezuela, Guyana, Suriname, and French Guiana, and extends into eastern Panama, but it may contain more than one species.
Wikipedia contributors, Oecomys bicolor; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T12:43:53.595292+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Oecomys bicolor (Tomes, 1860)
- Name authority
- (Tomes, 1860)
- Common name
- Bicolored Arboreal Rice Rat
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammalia
- Order
- Rodentia
- Family
- Cricetidae
- Genus
- Oecomys
- Extinction status
- Recorded extant
Classification family tree
Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumOsteichthyes
- megaclassTetrapoda
- classMammalia Linnaeus, 1758
- subclassTheria Parker & Haswell, 1897
- infraclassEutheria Gill, 1872
- orderRodentia Bowdich, 1821
- suborderMyomorpha Brandt, 1855
- superfamilyMuroidea Illiger, 1811
- familyCricetidae Fischer, 1817
- subfamilySigmodontinae Wagner, 1843
- genusOecomys Thomas, 1906
- speciesOecomys bicolor (Tomes, 1860)
Close classified relatives
These entries share the source’s genus, Oecomys. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Cleber's Arboreal Rice RatOecomys cleberi Locks, 1981 | CricetidaeChordata | Accepted speciesRecorded extant |
| Concolored Rice RatOecomys concolor (Wagner, 1845) | CricetidaeChordata | Accepted speciesRecorded extant |
| Mamore Arboreal Rice RatOecomys mamorae (Thomas, 1906) | CricetidaeChordata | Accepted speciesRecorded extant |
| King Arboreal Rice RatOecomys rex Thomas, 1910 | CricetidaeChordata | Accepted speciesRecorded extant |
| Red Arboreal Rice RatOecomys rutilus Anthony, 1921 | CricetidaeChordata | Accepted speciesRecorded extant |
| Foothill Arboreal Rice RatOecomys superans Thomas, 1911 | CricetidaeChordata | Accepted speciesRecorded extant |
| Oecomys sydandersoni Carleton, Emmons & Musser, 2009 | CricetidaeChordata | Accepted speciesRecorded extant |
| Robert's Arboreal Rice RatOecomys roberti (Thomas, 1904) | CricetidaeChordata | Accepted speciesRecorded extant |
| Atlantic Forest OecomysOecomys catherinae Thomas, 1909 | CricetidaeChordata | Accepted speciesRecorded extant |
| Tawny OecomysOecomys flavicans (Thomas, 1894) | CricetidaeChordata | Accepted speciesRecorded extant |
| Brazilian Arboreal Rice RatOecomys paricola (Thomas, 1904) | CricetidaeChordata | Accepted speciesRecorded extant |
| Dusky Arboreal Rice RatOecomys phaeotis (Thomas, 1901) | CricetidaeChordata | Accepted speciesRecorded extant |
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Oecomys endersi Goldman, 1933 Goldman, 1933 | synonym |
| Oecomys milleri J. A. Allen, 1916 J. A. Allen, 1916 | synonym |
| Oecomys trabeatus G. M. Allen & Barbour, 1923 G. M. Allen & Barbour, 1923 | synonym |
| Oecomys florenciae J. A. Allen, 1916 J. A. Allen, 1916 | synonym |
Documented distribution
Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.
Source literature & publication evidence
References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.
- https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=633186 Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references
Origins, evidence & remaining research
Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.
Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record. A suitable sourced image remains to be added.
Dataset citation & attribution
This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11
Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.
Stable key: col:48V4V. Classification follows source parent identifiers. English common names may vary by region.