Nephelomys pectoralis (J. A. Allen, 1912)

Open encyclopedia reference

Nephelomys pectoralis is a species of rodent in the genus Nephelomys of family Cricetidae. Its type locality is 40 miles (64 km) west of the city of Popayán, Cauca Department, Colombia, at an altitude of 10,340 feet (3,150 m). American zoologist Joel Asaph Allen first described it in 1912 on the basis of 112 specimens from several locations in the Cordillera Occidental. He classified it as a species of Oryzomys, Oryzomys pectoralis, but later subsumed into the species Oryzomys albigularis. When that species was transferred to the new genus Nephelomys in 2006, N. pectoralis was recognized as a separate species. N. pectoralis is larger than various other Nephelomys species, but smaller than N. maculiventer. Its upperparts are yellowish brown, and at the sides there is a distinct yellow line. Younger specimens may have some black hairs interspersed in the fur of the upperparts. The hairs of the underparts are grey at the bases and white at the tips, but those in a region of variable size on the chest are completely white.

Wikipedia contributors, Nephelomys pectoralis; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T13:46:40.939856+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name

Nephelomys pectoralis (J. A. Allen, 1912)

Name authority

(J. A. Allen, 1912)

Rank

species

Accepted status

accepted

Kingdom

Animalia

Phylum

Chordata

Class

Mammalia

Order

Rodentia

Family

Cricetidae

Genus

Nephelomys

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.

1. domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
2. kingdomAnimalia
3. phylumChordata
4. subphylumVertebrata
5. infraphylumGnathostomata
6. parvphylumOsteichthyes
7. megaclassTetrapoda
8. classMammalia Linnaeus, 1758
9. subclassTheria Parker & Haswell, 1897
10. infraclassEutheria Gill, 1872
11. orderRodentia Bowdich, 1821
12. suborderMyomorpha Brandt, 1855
13. superfamilyMuroidea Illiger, 1811
14. familyCricetidae Fischer, 1817
15. subfamilySigmodontinae Wagner, 1843
16. genusNephelomys Weksler, Percequillo & Voss, 2006
17. speciesNephelomys pectoralis (J. A. Allen, 1912)

Close classified relatives

These entries share the source’s genus, Nephelomys. They are not necessarily the closest relatives established by molecular evidence.

Browse 593 records assigned to Cricetidae.

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.

1. https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=972505 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:748YW. Classification follows source parent identifiers. English common names may vary by region.