The Baja pocket mouse (''Chaetodipus rudinoris'') is a species of

rodent Rodents (from Latin , 'to gnaw') are mammals of the order Rodentia (), which are characterized by a single pair of continuously growing incisors in each of the upper and lower jaws. About 40% of all mammal species are rodents. They are na ...

in the family

Heteromyidae Heteromyidae is a family of rodents consisting of kangaroo rats, kangaroo mice, pocket mice and spiny pocket mice. Most heteromyids live in complex burrows within the deserts and grasslands of western North America, though species within the gen ...

. The species occurs in southern

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

Baja California Baja California (; 'Lower California'), officially the Free and Sovereign State of Baja California ( es, Estado Libre y Soberano de Baja California), is a state in Mexico. It is the northernmost and westernmost of the 32 federal entities of Mex ...

and on islands in the

Gulf of California The Gulf of California ( es, Golfo de California), also known as the Sea of Cortés (''Mar de Cortés'') or Sea of Cortez, or less commonly as the Vermilion Sea (''Mar Bermejo''), is a marginal sea of the Pacific Ocean that separates the Baja Ca ...

Subspecies

The Baia pocket mouse has six recognised

subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...

.Don E. Wilson & DeeAnn M. Reeder (editors). 2005. Mammal Species of the World. A Taxonomic and Geographic Reference (3rd ed), Johns Hopkins University Press, 2,142 pp. The Montserrat Island pocket mouse (''Chaetodipus rudinoris fornicatus'') became

extinct Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and ...

in 1975 (last sighting).Álvarez-Castañeda, S. T. and Cortés-Calva, P. 2002. Extirpation of Bailey's pocket mouse Chaetodipus baileyi fornicatus (Heteromyidae : Mammalia), from Isla Montserrat, Baja California Sur, Mexico. Western North American Naturalist 62: 496-497. *''Chaetodipus rudinoris rudinoris'' *''Chaetodipus rudinoris extimus'' *''Chaetodipus rudinoris fornicatus'' (Monserrate Island pocket mouse)

† A dagger, obelisk, or obelus is a typographical mark that usually indicates a footnote if an asterisk has already been used. The symbol is also used to indicate death (of people) or extinction (of species). It is one of the modern descendan ...

*''Chaetodipus rudinoris hueyi'' *''Chaetodipus rudinoris knekus'' *''Chaetodipus rudinoris mesidios''

References

Chaetodipus Mammals described in 1903 {{Heteromyidae-stub