Rodent in the family Cricetidae found in northwestern Argentina
Akodon spegazzinii
Conservation status
Least Concern (IUCN 3.1)[1]
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Class:
Mammalia
Order:
Rodentia
Family:
Cricetidae
Subfamily:
Sigmodontinae
Genus:
Akodon
Species:
A. spegazzinii
Binomial name
Akodon spegazzinii
Thomas, 1897
Collection localities of Akodon spegazzinii[2]
Synonyms[3]
Akodon alterus Thomas, 1919
Akodon leucolimnaeus Cabrera, 1926
Akodon oenos Braun, Mares, and Ojeda, 2000
Akodon tucumanensis J.A. Allen, 1901
Akodon spegazzinii, also known as Spegazzini's akodont[4] or Spegazzini's grass mouse,[1] is a rodent in the genus Akodon found in northwestern Argentina. It occurs in grassland and forest at 400 to 3,500 m (1,300 to 11,500 ft) above sea level. After the species was first named in 1897, several other names were given to various populations now included in A. spegazzinii. They are now all recognized as part of a single, widespread and variable species. Akodon spegazzinii is related to Akodon boliviensis and other members of the A. boliviensis species group. It reproduces year-round. Because it is widely distributed and common, Akodon spegazzinii is listed as "least concern" on the IUCN Red List.
Akodon spegazzinii is medium in size for the A. boliviensis species group. The coloration of its upperparts varies considerably, from light to dark and from yellowish to reddish brown. The underparts are yellow-brown to gray. The eyes are surrounded by a ring of yellow fur. The skull contains an hourglass-shaped interorbital region (between the eyes) and various features of the skull distinguish the species from its close allies. Head and body length is 93 to 196 mm (3.7 to 7.7 in) and body mass is 13.0 to 38.0 g (0.46 to 1.34 oz). Its karyotype has 2n = 40 and FN = 40.[4]
^ abJayat, J.; Pardinas, U. (2018). "Akodon spegazzinii". IUCN Red List of Threatened Species. 2018: e.T48302281A114957339. doi:10.2305/IUCN.UK.2018-2.RLTS.T48302281A114957339.en. Retrieved 17 November 2021.
^Jayat et al., 2010; Pardiñas et al., 2011
^Jayat et al., 2010, p. 28; Pardiñas et al., 2011
^ abMusser and Carleton, 2005, p. 1099
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