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Giant White-tailed Uromys

Uromys (Uromys) caudimaculatus (Krefft, 1867)

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.

White-tailed Giant Rat (Uromys caudimaculatus) in Australia

White-tailed Giant Rat (Uromys caudimaculatus) in Australia

Romain Boisseau · CC BY-SA 4.0 · Image source

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Open encyclopedia reference

The giant white-tailed rat (Uromys caudimaculatus) is an Australian rodent native to tropical rainforest of north Queensland, Australia with subspecies occurring in New Guinea and the Aru Islands. It is one of the largest rodents in Australia, reaching up to 1 kg in weight. It is grey-brown above, cream to white below, and has a long, naked tail of which the distal section is white (Moore 1995).

Breeding commences in September or October, peaking in December and January at the height of the wet season. After a gestation of 36 days, a litter of two to three (rarely four) young are born, and remain with the mother for approximately three months (Moore 1995).

Wikipedia contributors, Giant white-tailed rat; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T11:04:18.635225+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name
Uromys (Uromys) caudimaculatus (Krefft, 1867)
Name authority
(Krefft, 1867)
Common name
Giant White-tailed Uromys
Rank
species
Accepted status
accepted
Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Rodentia
Family
Muridae
Genus
Uromys
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. familyMuridae Illiger, 1811
  15. subfamilyMurinae Illiger, 1811
  16. genusUromys Peters, 1867
  17. subgenusUromys Peters, 1867
  18. speciesUromys (Uromys) caudimaculatus (Krefft, 1867)

Close classified relatives

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

SpeciesClassificationSource status
Emma's UromysUromys (Uromys) emmae Groves & Flannery, 1994MuridaeChordataAccepted speciesRecorded extant
Masked White-tailed UromysUromys (Uromys) hadrourus (Winter, 1984)MuridaeChordataAccepted speciesRecorded extant
Biak Island UromysUromys (Uromys) boeadii Groves & Flannery, 1994MuridaeChordataAccepted speciesRecorded extant
New Britain Island UromysUromys (Uromys) neobritannicus Tate & Archbold, 1935MuridaeChordataAccepted speciesRecorded extant

Browse 672 records assigned to Muridae.

Names & synonyms

Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.

Recorded nameSource status
Uromys aruensis Gray, 1873 Gray, 1873synonym
Uromys ductor Thomas, 1913 Thomas, 1913synonym
Uromys prolixus Thomas, 1913 Thomas, 1913synonym
Uromys sherrini Thomas, 1923 Thomas, 1923synonym
Uromys validus Peters & Doria, 1881 Peters & Doria, 1881synonym
Uromys waigeuensis Frechkop, 1932 Frechkop, 1932synonym
Hapalotis caudimaculatus Krefft, 1867 Krefft, 1867synonym
Mus macropus Gray, 1866 Gray, 1866ambiguous synonym
Uromys lamington Troughton, 1937 Troughton, 1937synonym
Uromys nero Thomas, 1913 Thomas, 1913synonym
Uromys scaphax Thomas, 1913 Thomas, 1913synonym
Uromys macropus exilis Troughton & Le Souef, 1929 Troughton & Le Souef, 1929synonym

Documented distribution

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

Australia

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=585604 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:7DXVN. Classification follows source parent identifiers. English common names may vary by region.