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NATURAL HISTORY · CATALOGUE RECORD

Southern Palawan Tree Squirrel

Sundasciurus (Aletesciurus) steerii (Günther, 1877)

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.

Sciurus steerii = Sundasciurus steerii

Sciurus steerii = Sundasciurus steerii

J G Keulemans · Public domain · Image source

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Open encyclopedia reference

The Southern Palawan Tree Squirrel (Sundasciurus steerii) (local name "bising") is a species of rodent in the family Sciuridae. It is endemic to the Philippines. Its natural habitat is subtropical or tropical dry forests.

Two nematodes were discovered in 1967 when researching the Southern Palawan Tree Squirrel, they were named Brevistriata sundasciuri and Calypsostrongylus.

Wikipedia contributors, Southern Palawan tree squirrel; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T13:00:20.355291+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name
Sundasciurus (Aletesciurus) steerii (Günther, 1877)
Name authority
(Günther, 1877)
Common name
Southern Palawan Tree Squirrel
Rank
species
Accepted status
accepted
Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Rodentia
Family
Sciuridae
Genus
Sundasciurus
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. suborderSciuromorpha Brandt, 1855
  13. familySciuridae Fischer de Waldheim, 1817
  14. subfamilyCallosciurinae Pocock, 1923
  15. genusSundasciurus Moore, 1958
  16. subgenusAletesciurus Moore, 1958
  17. speciesSundasciurus (Aletesciurus) steerii (Günther, 1877)

Close classified relatives

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

SpeciesClassificationSource status
Culion Tree SquirrelSundasciurus (Aletesciurus) moellendorffi (Matschie, 1898)SciuridaeChordataAccepted speciesRecorded extant
Palawan Montane SquirrelSundasciurus (Aletesciurus) rabori Heaney, 1979SciuridaeChordataAccepted speciesRecorded extant
Samar SquirrelSundasciurus (Aletesciurus) samarensis (Steere, 1890)SciuridaeChordataAccepted speciesRecorded extant
Low's SquirrelSundasciurus (Sundasciurus) lowii (Thomas, 1892)SciuridaeChordataAccepted speciesRecorded extant
Northern Palawan Tree SquirrelSundasciurus (Aletesciurus) juvencus (Thomas, 1908)SciuridaeChordataAccepted speciesRecorded extant
Busuanga SquirrelSundasciurus (Aletesciurus) hoogstraali (Sanborn, 1952)SciuridaeChordataAccepted speciesRecorded extant
Brooke's SquirrelSundasciurus (Sundasciurus) brookei (Thomas, 1892)SciuridaeChordataAccepted speciesRecorded extant
Sumatran Mountain SquirrelSundasciurus (Sundasciurus) altitudinis (Robinson & Kloss, 1916)SciuridaeChordataAccepted speciesRecorded extant
Mindanao SquirrelSundasciurus (Aletesciurus) mindanensis (Steere, 1890)SciuridaeChordataAccepted speciesRecorded extant
Philippine Tree SquirrelSundasciurus (Aletesciurus) philippinensis (Waterhouse, 1839)SciuridaeChordataAccepted speciesRecorded extant
Upland SquirrelSundasciurus (Sundasciurus) tahan (Bonhote, 1908)SciuridaeChordataAccepted speciesRecorded extant
Slender SquirrelSundasciurus (Sundasciurus) tenuis (Horsfield, 1824)SciuridaeChordataAccepted speciesRecorded extant

Browse 219 records assigned to Sciuridae.

Documented distribution

Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.

Southern Asia

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=632471 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:7WY9T. Classification follows source parent identifiers. English common names may vary by region.