Large vesper mouse

Large vesper mouse
Conservation status
Least Concern  (IUCN 3.1) [1]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Rodentia
Family:	Cricetidae
Subfamily:	Sigmodontinae
Genus:	Calomys
Species:	C. callosus
Binomial name
Calomys callosus Rengger, 1830

The large vesper mouse (Calomys callosus) is a South American rodent species of the family Cricetidae. ^[2]

It is found in Argentina, Bolivia, Brazil and Paraguay.

Its karyotype has 2n = 50 and FN = 66. It was formerly synonymized with C. expulsus , but the latter has 2n = 66 and FN = 68. ^[2]

It is particularly notable as the vector of Bolivian hemorrhagic fever.

References

1. Dunnum, J.; Vargas, J.; Bernal, N.; D'Elia, G.; Pardinas, U. & Teta, P. (2017) [errata version of 2016 assessment]. "Calomys callosus". IUCN Red List of Threatened Species . 2016 e.T3611A115065498. doi: 10.2305/IUCN.UK.2016-3.RLTS.T3611A22334720.en . Retrieved 8 March 2025.
2. 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. pp. 1106–1107. ISBN   978-0-8018-8221-0. OCLC   62265494.