Juliomys pictipes

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Taxonavigation: Muroidea 

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
Tribus: Incertae sedis
Genus: Juliomys
Species: Juliomys pictipes


Juliomys pictipes (Osgood, 1933)

Holotype: FMNH 26814, adult ♂, skin and skull.

Type locality: “Caraguatay, Rio Parana, 100 miles south of Rio Iguassu, Misiones, Argentina”, restricted by Pardiñas et al. (2007) to Puerto Caraguatay (26.616°S, 54.766°W), Misiones, Argentina, although the holotype was probably obtained at the nearby locality Puerto Benson (Pardiñas et al. 2008).


  • Thomasomys pictipes Osgood, 1933: 11 [original combination]
  • Wildredomys pictipes: Musser & Carleton, 1993: 752 [name combination]
  • Juliomys pictipes: González, 2000: 3 [name combination]


Primary references[edit]

Additional references[edit]

  • Bonvicino, C.R. & Otazu, I. 1999. The Wilfredomys pictipes (Rodentia, Sigmodontinae) karyotype with comments on the karyosystematics of Brazilian Thomasomyini. Acta Theriologica 44: 329–332. Full article (PDF)
  • Pardiñas, U.F.J., Teta, P., D’Elía, G., Cirignoli, S. & Ortiz, P.E. 2007. Resolution of some problematic type localities for sigmodontine rodents (Cricetidae, Sigmodontinae). Pp 391–416. In Kelt, D.A., Lessa, E.P., Salazar-Bravo, J. and Patton, J.L. (Eds.). The quintessential naturalist: Honoring the life and legacy of Oliver P. Pearson. University of California Publications in Zoology 134: v–xii + 1–981. DOI: 10.1525/california/9780520098596.003.0015
  • Pardiñas, U.F.J., Teta, P., D’elía, G. & Galliari, C. 2008. Rediscovery of Juliomys pictipes (Rodentia: Cricetidae) in Argentina: emended diagnosis, geographic distribution, and insights on genetic structure. Zootaxa 1758: 29–44. Abstract & excerpt (PDF)
  • Cerboncini, R.A.S., Mochi-Junior, C.M., Tiepolo, L.M. & Passos, F.C. 2014. New records of the red-rumped mouse Juliomys pictipes (Osgood, 1933) (Rodentia: Sigmodontinae) in coastal Atlantic Forest of Paraná, southern Brazil. Biotemas 27(1): 159–164. DOI: 10.5007/2175-7925.2014v27n1p159
  • González, E.M., Oliveira, J.A. & Teta, P. 2015. Genus Juliomys E. M. González, 2000. Pp. 92–96. In Patton, J.L., Pardiñas, U.F.J. & D'Elía, G. (eds.). Mammals of South America - vol. 2 Rodentia. University of Chicago Press. 1363p.


Vernacular names[edit]

English: Contreras’ Juliomys, Lesser Wilfred's Mouse, Small Red-nosed Tree Mouse