Crunomys rajah

(O. Thomas, 1894)

Rajah Sundaic Spiny Rat

Taxonomy

Subclass : Theria
Infraclass : Placentalia
Magnorder : Boreoeutheria
Superorder : Euarchontoglires
Order : Rodentia
Suborder : Supramyomorpha
Infraorder : Myomorphi
Superfamily : Muroidea
Family : Muridae
Subfamily : Murinae
Tribe : Rattini
Genus : Crunomys

Species status

Living
Found in the wild
Listed in MSW3 2005

Authority citation

Thomas, O. 1894-12-01. A preliminary revision of the Bornean species of the genus Mus. Annals and Magazine of Natural History (6)14(84):449-460.

Authority publication link

https://www.biodiversitylibrary.org/page/24343715 https://www.biodiversitylibrary.org/page/24343718

Original name as described

Mus rajah

Other common names

Brown Spiny Rat · Rajah Spiny Rat · Rajah Sundaic Maxomys

Type material

BMNH:Mamm:1892.9.6.15

Type kind

holotype

Type specimen URI

https://data.nhm.ac.uk/object/abb4dfb4-f2c9-4bef-a5b6-c5bba252bfa7

Type locality

"Mount Kina Balu, " northern Borneo, Malaysia.

Biogeographic realm

Indomalaya

Country distribution

Thailand · Malaysia · Indonesia · Brunei

Taxonomy notes

moved from Maxomys to Crunomys

Taxonomy notes citation

Giarla, T.C., Achmadi, A.S., Fabre, P.-H., Handika, H., Chipps, A.S., Swanson, M.T., Nations, J.A., Morni, M.A., William-Dee, J., Inayah, N., Dwijayanti, E., Nurdin, M.R.T.J.P., Griffin, K.E., Khan, F.A.A., Heaney, L.R., Rowe, K.C. and Esselstyn, J.A. 2025-06-13. Systematics and historical biogeography of Crunomys and Maxomys (Muridae: Murinae), with the description of a new species from Sulawesi and new genus-level classification. Journal of Mammalogy (in press).

IUCN Red List status

Vulnerable

Species Permalink

https://www.mammaldiversity.org/taxon/1003568

Country distribution map

The map below provides a general overview. Most species inhabit only specific regions within countries. Hover over the highlighted regions to see the country name.

Names and synonyms

Present and past (if available) associated names to the species. Click on a name to view its details. If the list is long, scroll down to see more.

Mus rajah

(O. Thomas, 1894)

Family

Muridae

Root name

rajah

Validity status

species

Nomenclatural status

available

Type

BMNH:Mamm:1892.9.6.15

Type kind

holotype

Type specimen URI

https://data.nhm.ac.uk/object/abb4dfb4-f2c9-4bef-a5b6-c5bba252bfa7

Authority page

451, 454

Authority page URI

https://www.biodiversitylibrary.org/page/24343715 https://www.biodiversitylibrary.org/page/24343718

Authority publication

Annals and Magazine of Natural History

Mus lingensis

(G. S. Miller, 1900)

Family

Muridae

Root name

lingensis

Validity status

synonym

Nomenclatural status

available

Type

USNM:MAMM:101614

Type kind

holotype

Type specimen URI

http://n2t.net/ark:/65665/32cfb3716-a671-42de-95e3-c9f9972d28d7

Authority page

206

Authority page URI

https://www.biodiversitylibrary.org/page/8872236

Authority publication

Proceedings of the Washington Academy of Sciences

Name usages

  1. Lyon (1908:645, https://www.biodiversitylibrary.org/page/62629812) (information at https://hesperomys.com/a/17209)
  2. Musser & Carleton (2005) (information at https://hesperomys.com/a/8562)

Mus pellax

(G. S. Miller, 1900)

Family

Muridae

Root name

pellax

Validity status

synonym

Nomenclatural status

available

Type

USNM:MAMM:86755

Type kind

holotype

Type specimen URI

http://n2t.net/ark:/65665/32ee5bd7f-aff9-469b-8266-45f2e4d3ab62

Authority page

147

Authority page URI

https://www.biodiversitylibrary.org/page/2308257

Authority publication

Proceedings of the Biological Society of Washington

Name usages

Musser & Carleton (2005) (information at https://hesperomys.com/a/8562)

Epimys rajah

(Lyon, 1911)

Family

Muridae

Root name

rajah

Validity status

synonym

Nomenclatural status

name_combination

Authority page

107

Authority page URI

https://www.biodiversitylibrary.org/page/15845269

Authority publication

Proceedings of the United States National Museum

Name usages

Lyon (1911:107, https://www.biodiversitylibrary.org/page/15845269) (information at https://hesperomys.com/a/15501)

Rattus pellax

(Gyldenstolpe, 1916)

Family

Muridae

Root name

pellax

Validity status

synonym

Nomenclatural status

name_combination

Authority page

41

Authority page URI

https://www.biodiversitylibrary.org/page/41891629

Authority publication

Kunglika Svenska Vetenskapsakademiens Handlingar

Name usages

Gyldenstolpe (1916:41, https://www.biodiversitylibrary.org/page/41891629) (information at https://hesperomys.com/a/67559)

Epimys similis

(H. C. Robinson & Kloss, 1916)

Family

Muridae

Root name

similis

Validity status

synonym

Nomenclatural status

available

Type

FMSM 285/14

Type kind

holotype

Authority page

272

Authority page URI

https://www.biodiversitylibrary.org/page/41809748

Authority publication

Journal of the Straits Branch of the Royal Asiatic Society

Name usages

Musser & Carleton (2005) (information at https://hesperomys.com/a/8562)

Rattus rajah

(Kloss, 1919)

Family

Muridae

Root name

rajah

Validity status

synonym

Nomenclatural status

name_combination

Authority page

75

Authority page URI

https://www.biodiversitylibrary.org/page/12463678

Authority publication

Journal of the Natural History Society of Siam

Name usages

  1. Kloss (1919:75, https://www.biodiversitylibrary.org/page/12463678) (information at https://hesperomys.com/a/34052)
  2. Sody (1941:292) (information at https://hesperomys.com/a/31858)
  3. Miller (1942:155) (information at https://hesperomys.com/a/12073)
  4. Davis (1962:90) (information at https://hesperomys.com/a/16694)

Rattus rajah hidongis

(Kloss, 1921)

Family

Muridae

Root name

hidongis

Validity status

synonym

Nomenclatural status

available

Type

RMNH.MAM.9804 (= MZB 285)

Type kind

holotype

Type specimen URI

https://data.biodiversitydata.nl/naturalis/specimen/RMNH.MAM.9804.a https://data.biodiversitydata.nl/naturalis/specimen/RMNH.MAM.9804.b

Authority page

122

Authority page URI

https://www.biodiversitylibrary.org/page/30344693

Authority publication

Treubia

Name usages

  1. Sody (1941:292) (information at https://hesperomys.com/a/31858)
  2. Musser & Carleton (2005) (information at https://hesperomys.com/a/8562)

Rattus rajah pellax

(Sody, 1941)

Family

Muridae

Root name

pellax

Validity status

synonym

Nomenclatural status

name_combination

Authority page

292

Authority publication

Treubia

Name usages

Sody (1941:292) (information at https://hesperomys.com/a/31858)

Rattus rajah lingensis

(G. S. Miller, 1942)

Family

Muridae

Root name

lingensis

Validity status

synonym

Nomenclatural status

name_combination

Authority page

155

Authority publication

Proceedings of the Academy of Natural Sciences of Philadelphia

Name usages

Miller (1942:155) (information at https://hesperomys.com/a/12073)

Rattus rajah similis

(G. S. Miller, 1942)

Family

Muridae

Root name

similis

Validity status

synonym

Nomenclatural status

name_combination

Authority page

155

Authority publication

Proceedings of the Academy of Natural Sciences of Philadelphia

Name usages

Miller (1942:155) (information at https://hesperomys.com/a/12073)

Rattus rajah rajah

(D. D. Davis, 1962)

Family

Muridae

Root name

rajah

Validity status

synonym

Nomenclatural status

name_combination

Authority page

90

Authority publication

Bulletin of Raffles Museum

Name usages

Davis (1962:90) (information at https://hesperomys.com/a/16694)

Maxomys rajah

(Musser, J. T. Marshall, & Boeadi, 1979)

Family

Muridae

Root name

rajah

Validity status

synonym

Nomenclatural status

name_combination

Authority page

593

Authority publication

Journal of Mammalogy

Name usages

  1. Musser, Marshall & Boeadi (1979:593) (information at https://hesperomys.com/a/4215)
  2. Corbet & Hill (1980:175) (information at https://hesperomys.com/a/63069)
  3. Honacki, Kinman & Koeppl (1982:527) (information at https://hesperomys.com/a/63071)
  4. Corbet & Hill (1991:184) (information at https://hesperomys.com/a/63070)
  5. Musser & Carleton (1993:613) (information at https://hesperomys.com/a/63347)
  6. Musser & Carleton (2005) (information at https://hesperomys.com/a/8562)
  7. Wilson, Mittermeier & Lacher (2017:861) (information at https://hesperomys.com/a/57900)
  8. Mammal Diversity Database (2018:ID #12904) (information at https://hesperomys.com/a/67336)
  9. Mammal Diversity Database (2019:ID #12904) (information at https://hesperomys.com/a/67337)
  10. Mammal Diversity Database (2024, https://www.mammaldiversity.org/taxon/1003568) (information at https://hesperomys.com/a/67250)
  11. International Union for the Conservation of Nature (2024, https://www.iucnredlist.org/species/12904/22455724) (information at https://hesperomys.com/a/67246)

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