Megascapheus bulbivorus

(J. Richardson, 1829)

Camas Pocket Gopher

Formerly Thomomys bulbivorus. Also as Camas Rat.
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Location:USA, OR, Washington co., Bethany, Emerald Estates Park, 45.561102, -122.847012Date taken:13 June 2020Description:Formerly Thomomys bulbivorus. Also as Camas Rat.

Distribution :

Willamette Valley (NW Oregon, USA).

Image courtesy of the ASM Mammal Images Library · MIL ID: 6230

Taxonomy

Subclass: Theria
Infraclass: Placentalia
Magnorder: Boreoeutheria
Superorder: Euarchontoglires
Order: Rodentia
Suborder: Supramyomorpha
Infraorder: Castorimorphi
Superfamily: Geomyoidea
Family: Geomyidae
Subfamily: Geomyinae
Tribe: Thomomyini
Genus: Megascapheus

Species status

Living
Found in the wild
Listed in MSW3 2005

Authority citation

Richardson, J. 1829. Fauna Boreali-Americana. Part first, containing the quadrupeds. John Murray, London, 300 pp.

Authority publication link

https://www.biodiversitylibrary.org/page/27984730

Original name as described

Diplostoma bulbivorum

Other common names

Camas Rat

Type locality

"banks of the Columbia [River], " Oregon, USA.

Biogeographic realm

Nearctic

Country distribution

United States

Subregion distribution

USA(OR)

Taxonomy notes

moved from Thomomys to Megascapheus

Taxonomy notes citation

Álvarez-Castañeda, S.T. and Segura-Trujillo, C.A. 2025. Genus-level review of pocket gophers in the family Geomyidae. Therya 16(1):41-75. a#68853

IUCN Red List status

Not Evaluated

Species Permalink

https://mammaldiversity.org/taxon/1001879

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.

Total: 5 names and synonyms.

Diplostoma bulbivorum

J. Richardson, 1829

Family

Geomyidae

Root name

bulbivorus

Validity status

species

Nomenclatural status

available

Original type locality

on the plains of the Multnomah River

Type locality

United States: Oregon: Multnomah County, Oregon.

Authority page

206

Authority page URI

https://www.biodiversitylibrary.org/page/27984730

Authority publication

London

Name usages

Lesson (1836:462, https://www.biodiversitylibrary.org/page/62815145) (information at https://hesperomys.com/a/61467)

Geomys bulbivorus:

De Kay, 1842

Family

Geomyidae

Root name

bulbivorus

Validity status

synonym

Nomenclatural status

name_combination

Authority page

92

Authority page URI

https://www.biodiversitylibrary.org/page/2003547

Authority publication

New York

Name usages

De Kay (1842:92, https://www.biodiversitylibrary.org/page/2003547) (information at https://hesperomys.com/a/36849)

Thomomys bulbivorus:

A. Murray, 1866

Family

Geomyidae

Root name

bulbivorus

Validity status

synonym

Nomenclatural status

name_combination

Authority page

357

Authority page URI

https://www.biodiversitylibrary.org/page/15580353

Authority publication

London

Name usages

Murray (1866:357, https://www.biodiversitylibrary.org/page/15580353) (information at https://hesperomys.com/a/39798)
Trouessart (1897:575, https://www.biodiversitylibrary.org/page/53435119) (information at https://hesperomys.com/a/59285)
Trouessart (1904:471, https://www.biodiversitylibrary.org/page/53423352) (information at https://hesperomys.com/a/59289)
Bailey (1936:249, https://www.biodiversitylibrary.org/page/25806170) (information at https://hesperomys.com/a/35313)
Russell (1968:520, https://www.biodiversitylibrary.org/page/4385149) (information at https://hesperomys.com/a/13316)
Corbet & Hill (1980:138) (information at https://hesperomys.com/a/63069)
Honacki, Kinman & Koeppl (1982:381) (information at https://hesperomys.com/a/63071)
Corbet & Hill (1991:147) (information at https://hesperomys.com/a/63070)
Patton (1993:474) (information at https://hesperomys.com/a/69021)
Patton (2005) (information at https://hesperomys.com/a/8529)
Bradley, Ammerman, Baker, Bradley, Cook, Dowler, Jones, Schmidly, Stangl, Van Den Bussche & Würsig (2014:19, https://www.biodiversitylibrary.org/page/57785979) (information at https://hesperomys.com/a/19157)
Wilson, Lacher & Mittermeier (2016:238) (information at https://hesperomys.com/a/59599)
Mammal Diversity Database (2018:ID #42594) (information at https://hesperomys.com/a/67336)
Mammal Diversity Database (2019:ID #42594) (information at https://hesperomys.com/a/67337)
Mammal Diversity Database (2024, https://www.mammaldiversity.org/taxon/1001879) (information at https://hesperomys.com/a/67250)
International Union for the Conservation of Nature (2024, https://www.iucnredlist.org/species/42594/22216513) (information at https://hesperomys.com/a/67246)

Thomomys talpoides bulbivorus:

F. W. True, 1885

Family

Geomyidae

Root name

bulbivorus

Validity status

synonym

Nomenclatural status

name_combination

Authority page

599

Authority page URI

https://www.biodiversitylibrary.org/page/7306393

Authority publication

Proceedings of the United States National Museum

Name usages

True (1885:599, https://www.biodiversitylibrary.org/page/7306393) (information at https://hesperomys.com/a/35039)

Megascapheus bulbivorus:

Álvarez-Castañeda & Segura-Trujillo, 2025

Family

Geomyidae

Root name

bulbivorus

Validity status

synonym

Nomenclatural status

name_combination

Authority page

56

Authority publication

Therya

Name usages

Álvarez-Castañeda & Segura-Trujillo (2025:56) (information at https://hesperomys.com/a/68853)

Publications

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