NATURAL HISTORY · CATALOGUE RECORD
Rossel Island Melomys
Melomys arcium (Thomas, 1913)
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 Rossel Island melomys (Melomys arcium) is a species of rodent from the family Muridae. It is endemic to Rossel Island in Papua New Guinea, but Flannery (1955) presumed that "it did exist previously on other islands of the group, but has become extinct on all except Rossel." For many years it was seen as a subspecies of the white-bellied mosaic-tailed rat, but is now considered a distinct species. It is listed as data deficient by the IUCN Red List in light of little information on "population status, ecological requirements, and threats". The Rossel Island melomys has not been officially recorded since 1956, but its habitat is still in good condition. The IUCN lists determining population status of the melomys as a "high priority".
Wikipedia contributors, Rossel Island melomys; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T09:16:41.540530+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Melomys arcium (Thomas, 1913)
- Name authority
- (Thomas, 1913)
- Common name
- Rossel Island Melomys
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammalia
- Order
- Rodentia
- Family
- Muridae
- Genus
- Melomys
- 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
- familyMuridae Illiger, 1811
- subfamilyMurinae Illiger, 1811
- genusMelomys Thomas, 1922
- speciesMelomys arcium (Thomas, 1913)
Close classified relatives
These entries share the source’s genus, Melomys. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Grassland MelomysMelomys burtoni (Ramsay, 1887) | MuridaeChordata | Accepted speciesRecorded extant |
| Cape York MelomysMelomys capensis Tate, 1951 | MuridaeChordata | Accepted speciesRecorded extant |
| Short-tailed Talaud MelomysMelomys caurinus (Thomas, 1921) | MuridaeChordata | Accepted speciesRecorded extant |
| Dollman's MelomysMelomys dollmani Rümmler, 1935 | MuridaeChordata | Accepted speciesRecorded extant |
| Snow Mountains Grassland MelomysMelomys frigicola Tate, 1951 | MuridaeChordata | Accepted speciesRecorded extant |
| Seram Long-tailed MelomysMelomys fulgens (Thomas, 1920) | MuridaeChordata | Accepted speciesRecorded extant |
| Riama Island MelomysMelomys howi Kitchener, in Kitchener & Suyanto, 1996 | MuridaeChordata | Accepted speciesRecorded extant |
| White-bellied MelomysMelomys leucogaster (Jentink, 1908) | MuridaeChordata | Accepted speciesRecorded extant |
| Obi Island MelomysMelomys obiensis (Thomas, 1911) | MuridaeChordata | Accepted speciesRecorded extant |
| Pavel's Seram MelomysMelomys paveli Helgen, 2003 | MuridaeChordata | Accepted speciesRecorded extant |
| Black-tailed MelomysMelomys rufescens (Alston, 1877) | MuridaeChordata | Accepted speciesRecorded extant |
| Buka Island MelomysMelomys spechti Flannery & Wickler, 1990 | MuridaeChordata | 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=970841 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:3ZMWK. Classification follows source parent identifiers. English common names may vary by region.