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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
Subordo: Cynodontia
Infraordo: 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
Tribus: Akodontini
Genus: Oxymycterus
Species: Oxymycterus hucucha

Oxymycterus hucucha Hinojosa, Anderson & Patton, 1987: 15

Holotype: AMNH 260383, adult ♂, skin, skeleton and tissues in liquid nitrogen.

Type locality: “28 km by road W of Comarapa (Santa Cruz) but in the department of Cochabamba, Bolivia, at 2800m elev.; lat. 17°51′S and long. 64°40′W.”
Primary references

Hinojosa P., F., Anderson, S. & Patton, J.L. 1987. Two new species of Oxymycterus (Rodentia) from Peru and Bolivia. American Museum Novitates 2898: 1–17. Full article Reference page.

Vernacular names
English: Quechuan Hocicudo

Oxymycterus hucucha, also known as the Quechuan Hocicudo,[2] is a species of rodent in the genus Oxymycterus of family Cricetidae from South America. It is found only in a small region of the Andes in central Bolivia, where it lives in cloud forest at altitudes from 2600 to 3000 m.[3]

Exceptionally small for its genus,[4] O. hucucha was first recognized as new when a specimen was caught in 1984 in the Siberia Cloud Forest in Bolivia's Cochabamba Department, near the border of Santa Cruz Department. It was recognized as an Oxymycterus by its long claws relative to other, sympatric small akodontine rodents.[5] Two other specimens caught nearby[6] in 1955 and 1979 were then recognized as pertaining to the same species; one had been misidentified as Akodon mimus.[5] In 1987, O. hucucha and another small Oxymycterus, O. hiska from Peru, were named and described in an American Museum Novitates paper by Flavio Hinojosa, Sydney Anderson, and James Patton.[4] O. hucucha's specific name is derived from hucucha, which means "mouse" in Quechua, the local Amerindian language in the region where the species is found.[6]

It is similar in size to O. hiska, but slightly smaller, and the fur of the upperparts is more pale and reddish. Furthermore, the skull is narrower, the palate is longer, and the upper incisors are oriented more to the front, among other differences. Its coloration resembles that of some young O. inca, a larger Oxymycterus that occurs in the same region, but the latter have larger feet.[6]

The IUCN lists its conservation status as "endangered" because it has a small distribution, its habitat is being destroyed, and it is not known from any protected areas.[1]

Roach, N.; Naylor, L. (2019). "Oxymycterus hucucha". IUCN Red List of Threatened Species. 2019: e.T15786A160756387. doi:10.2305/IUCN.UK.2019-3.RLTS.T15786A160756387.en. Retrieved 16 November 2021.
Musser and Carleton, 2005; Dunnum et al., 2008
Hinojosa et al., 1987, p. 15; Musser and Carleton, 2005
Hinojosa et al., 1987, p. 1
Hinojosa et al., 1987, p. 2

Hinojosa et al., 1987, p. 15

Literature cited

Dunnum, J., Vargas, J. and Bernal, N. 2008. Oxymycterus hucucha. In IUCN. IUCN Red List of Threatened Species. Version 2009.2. <>. Downloaded on December 12, 2009.
Hinojosa P., F., Anderson, S. and Patton, J.L. 1987. Two new species of Oxymycterus (Rodentia) from Peru and Bolivia. American Museum Novitates 2898:1–17.
Musser, G.G. and Carleton, M.D. 2005. Superfamily Muroidea. Pp. 894–1531 in Wilson, D.E. and Reeder, D.M. (eds.). Mammal Species of the World: a taxonomic and geographic reference. 3rd ed. Baltimore: The Johns Hopkins University Press, 2 vols., 2142 pp. ISBN 978-0-8018-8221-0

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