NATURAL HISTORY · CATALOGUE RECORD
Northern Baja Deermouse
Peromyscus fraterculus (Miller, 1892)
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
The northern Baja deer mouse or northern Baja deermouse (Peromyscus fraterculus) is a species of rodent in the family Cricetidae. It is a species of the genus Peromyscus, a closely related group of New World mice often called "deermice". It is native to Southern California and the Baja California peninsula as well as several islands in the Gulf of California. P. fraterculus was previously considered a subspecies of the cactus mouse (Peromyscus eremicus) prior to a 2000 study which identified genetic differences and suggested P. fraterculus is more closely related to Eva's desert mouse (P. eva) than to P. eremicus.
Wikipedia contributors, Northern Baja deer mouse; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T10:11:32.388142+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Peromyscus fraterculus (Miller, 1892)
- Name authority
- (Miller, 1892)
- Common name
- Northern Baja Deermouse
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammalia
- Order
- Rodentia
- Family
- Cricetidae
- Genus
- Peromyscus
- 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
- subfamilyNeotominae Merriam, 1894
- genusPeromyscus Gloger, 1841
- speciesPeromyscus fraterculus (Miller, 1892)
Close classified relatives
These entries share the source’s genus, Peromyscus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Orizaba DeermousePeromyscus beatae Thomas, 1903 | CricetidaeChordata | Accepted speciesRecorded extant |
| Perote DeermousePeromyscus bullatus Osgood, 1904 | CricetidaeChordata | Accepted speciesRecorded extant |
| Burt's Deer MousePeromyscus caniceps Burt, 1932 | CricetidaeChordata | Accepted speciesRecorded extant |
| Peromyscus carletoni Bradley et al., 2014 | CricetidaeChordata | Accepted speciesRecorded extant |
| Cactus DeermousePeromyscus eremicus (Baird, 1857) | CricetidaeChordata | Accepted speciesRecorded extant |
| Eva's Desert MousePeromyscus eva Thomas, 1898 | CricetidaeChordata | Accepted speciesRecorded extant |
| Blackish Deer MousePeromyscus furvus J. A. Allen & Chapman, 1897 | CricetidaeChordata | Accepted speciesRecorded extant |
| Cotton DeermousePeromyscus gossypinus (Le Conte, 1853) | CricetidaeChordata | Accepted speciesRecorded extant |
| Naked-eared Deer MousePeromyscus gymnotis Thomas, 1894 | CricetidaeChordata | Accepted speciesRecorded extant |
| Southern Wood MousePeromyscus hylocetes Merriam, 1898 | CricetidaeChordata | Accepted speciesRecorded extant |
| San Lorenzo DeermousePeromyscus interparietalis Burt, 1932 | CricetidaeChordata | Accepted speciesRecorded extant |
| Tres Marias Island mousePeromyscus madrensis Merriam, 1898 | 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 |
|---|---|
| Peromyscus homochroia Elliot, 1903 Elliot, 1903 | synonym |
| Peromyscus eremicus propinquus J. A. Allen, 1898 J. A. Allen, 1898 | synonym |
| Sitomys herroni Rhoads, 1893 Rhoads, 1893 | synonym |
| Sitomys herroni nigellus Rhoads, 1894 Rhoads, 1894 | synonym |
Documented distribution
Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.
North America
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=970631 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:4F7JR. Classification follows source parent identifiers. English common names may vary by region.