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Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Cladus: Synapsida
Cladus: Eupelycosauria
Cladus: Sphenacodontia
Cladus: Sphenacodontoidea
Cladus: Therapsida
Cladus: Theriodontia
Cladus: Cynodontia
Cladus: Eucynodontia
Cladus: Probainognathia
Cladus: Prozostrodontia
Cladus: Mammaliaformes
Classis: Mammalia
Subclassis: Trechnotheria
Infraclassis: Zatheria
Supercohors: Theria
Cohors: Eutheria
Infraclassis: Placentalia
Cladus: Boreoeutheria
Superordo: Euarchontoglires
Ordo: Rodentia
Subordo: Myomorpha
Superfamilia: Muroidea

Familia: Cricetidae
Subfamilia: Sigmodontinae
Tribe: Abrotrichini
Genus: Geoxus
Species: Geoxus valdivianus

Geoxus valdivianus (Philippi, 1858)

Type locality: Chile, Valdivia Prov.

Oxymycterus valdivianus Philippi, 1858


Notiomys valdivianus araucanus Osgood, 1925
Notiomys valdivianus bicolor Osgood, 1943
Notiomys valdivianus bullocki Osgood, 1943
Notiomys valdivianus chiloensis Osgood, 1925
Geoxus fossor Thomas, 1919
Hesperomys (Acodon) michaelseni Matschie, 1898
Oxymycterus microtis J. A. Allen, 1903


Philippi, R.A. 1858. Beschereibung neuer Wirbelthiere aus Chile. Archiv Für Naturgeschicthe 24 (1): 303–311.
Geoxus valdivianus in Mammal Species of the World.
Wilson, Don E. & Reeder, DeeAnn M. (Editors) 2005. Mammal Species of the World – A Taxonomic and Geographic Reference. Third edition. ISBN 0-8018-8221-4.

Vernacular names
English: Long-clawed Mole Mouse

Geoxus valdivianus, also known as the long-clawed mole mouse[1] or Valdivian long-clawed akodont,[2] is a species of rodent in the tribe Abrotrichini of family Cricetidae found in the Valdivian temperate rain forests and Magellanic subpolar forests of Argentina and Chile. It is one of two species in the genus Geoxus.[3]

The long-clawed mole mouse is a small shrew-like mammal with a short tail and a total length of about 14 cm (5.5 in). The body is spindle-shaped, enabling this mouse to move and turn in confined spaces. The pelage is short and velvety, dark olive-brown to black, sometimes tinged with reddish brown. The snout is pointed, the eyes small and the ears tiny. The feet are large, the claws being larger than the digits.[4]
Distribution and habitat

This species is endemic to the southern tip of South America. Its range extends from southern Argentina and central Chile, including Mocha Island and Chiloé Island, to the Strait of Magellan.[1] Its habitat is the forests of Nothofagus, Saxegothaea and bamboo found in this region, as well as tussock grassland, marshes and wet meadows; its altitudinal range is from sea level to the tree line.[4]

The long-clawed mole mouse digs a burrow and also moves about in surface runways near fallen logs and in dense undergrowth. It is mainly nocturnal, leaving its burrow briefly to feed on earthworms and other small invertebrates, supplemented by plant material.[4]

G. valdivianus is an uncommon species but it has a wide range and no particular threats have been identified; the International Union for Conservation of Nature has assessed its conservation status as being of "least concern".[1]

D'Elia, G.; Pardinas, U.; Patterson, B. (2017) [errata version of 2016 assessment]. "Geoxus valdivianus". IUCN Red List of Threatened Species. 2016: e.T9089A115089444. Retrieved 28 February 2021.
Musser, G.G.; Carleton, M.D. (2005). "Superfamily Muroidea". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 1116. ISBN 978-0-8018-8221-0. OCLC 62265494.
Musser, G.G.; Carleton, M.D. (2005). "Genus Geoxus". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 1116. ISBN 978-0-8018-8221-0. OCLC 62265494.
Sharon Chester (2010). A Wildlife Guide to Chile: Continental Chile, Chilean Antarctica, Easter Island, Juan Fernandez Archipelago. Princeton University Press. p. 313. ISBN 1-4008-3150-4.

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