NATURAL HISTORY · CATALOGUE RECORD
Olrog's Four-eyed Opossum
Philander olrogi Flores, Barquez & Díaz, 2008
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.
Distribution of Philander olrogi
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Open encyclopedia reference
Olrog's four-eyed opossum (Philander olrogi) is a South American species of opossum endemic to eastern Bolivia, first described in 2008 based on specimens collected in 1974. It inhabits the lowland Amazon rainforest, with an elevation range of 150 to 250 m. The species is named after Swedish-Argentine biologist Claes C. Olrog. It is sympatric with P. opossum, which it resembles. The two species differ in several ways, such as ventral fur color and condition of the zygomatic arch. It is considered to be a junior synonym of the common four-eyed opossum by some sources, such as the Mammal Diversity Database.
Wikipedia contributors, Olrog's four-eyed opossum; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T11:06:51.049026+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Philander olrogi Flores, Barquez & Díaz, 2008
- Name authority
- Flores, Barquez & Díaz, 2008
- Common name
- Olrog's Four-eyed Opossum
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammalia
- Order
- Didelphimorphia
- Family
- Didelphidae
- Genus
- Philander
- 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
- infraclassMetatheria Huxley, 1880
- orderDidelphimorphia Gill, 1872
- familyDidelphidae Gray, 1821
- subfamilyDidelphinae Gray, 1821
- tribeDidelphini Gray, 1821
- genusPhilander Brisson, 1762
- speciesPhilander olrogi Flores, Barquez & Díaz, 2008
Close classified relatives
These entries share the source’s genus, Philander. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Anderson's Four-eyed OpossumPhilander andersoni (Osgood, 1913) | DidelphidaeChordata | Accepted speciesRecorded extant |
| McIlhenny's Four-eyed OpossumPhilander mcilhennyi Gardner & Patton, 1972 | DidelphidaeChordata | Accepted speciesRecorded extant |
| Gray Four-eyed OpossumPhilander opossum (Linnaeus, 1758) | DidelphidaeChordata | Accepted speciesRecorded extant |
| Common Four-eyed OpossumPhilander canus (Osgood, 1913) | DidelphidaeChordata | Accepted speciesRecorded extant |
| Dark Four-eyed OpossumPhilander melanurus (Thomas, 1899) | DidelphidaeChordata | Accepted speciesRecorded extant |
| Delta OpossumPhilander deltae Lew, Pérez-Hernández & Ventura, 2006 | DidelphidaeChordata | Accepted speciesRecorded extant |
| Pebas Four-eyed OpossumPhilander pebas Voss, Diaz-Nieto & Jansa, 2018 | DidelphidaeChordata | Accepted speciesRecorded extant |
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=1255435 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.
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:DTCT6. Classification follows source parent identifiers. English common names may vary by region.