Yellow isthmus rat

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Yellow isthmus rat
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Cricetidae
Genus: Isthmomys
Species: I. flavidus
Binomial name
Isthmomys flavidus
(Bangs, 1902)

The yellow isthmus rat (Isthmomys flavidus) is a species of rodent in the family Cricetidae. It is found only in Panama. It was discovered by W. W. Brown, Jr. on the southern slope of Volcan de Chiriqui (8° 49' N, 82° 32' W). He found it common in the upland forest from 1000 to 1500m, but no specimens were taken above or below these elevations (Bangs 1902; Goldman 1920; Goodwin 1946). Museum records specify two isolated populations in western Panama, one at Cerro Colorado where R. Pine et al. collected in 1980 (8° 31' 60N, 81° 49' 0W) and at Cerro Hoya on the Azuero Peninsula by C. Handley in 1962 (7° 23' N, 80° 38' W). The presence of I. flavidus or a closely allied form in Costa Rica is probable (Goodwin 1946), however, no specimens have been reported. There are no currently known fossil records of Isthmomys (McKenna and Bell 1997).


  1. ^ Reid, F.; Woodman, N.; Timm, R. Samudio, R. & Pino, J. (2008). "Isthmomys flavidus". IUCN Red List of Threatened Species. Version 2008. International Union for Conservation of Nature. Retrieved 18 Jule 2009.  Check date values in: |access-date= (help) Database entry includes a brief justification of why this species is of near threatened.
  • Musser, G. G. and M. D. Carleton. 2005. Superfamily Muroidea. pp. 894–1531 in Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore.