Chaetodipus rudinoris fornicatus Burt, 1932

Bailey's pocket mouse, Montserrat Island pocket mouse



Taxonomy & Nomenclature

Synonym/s: Perognathus baileyi fornicatus Burt, 1932; Chaetodipus baileyi fornicatus Burt, 1932


Conservation Status


Last record: 21 May 1975

IUCN RedList status: Extinct


Predation by feral cats probably caused Bailey's pocket mouse to become extinct (Alvarez-Castaneda & Cortes-Calva, 2002).



Montserrat Island, Gulf of California, Mexico


Biology & Ecology




The last two specimens collected are in the collection of the Instituto de Biología of the Universidad Nacional Autónoma de México (Alvarez-Castaneda and Cortes-Calva, 2002).






Original scientific description:

Burt, William Henry. (1932). Description of heretofore unknown mammals from islands in the Gulf of California, México. Transactions of the San Diego Society of Natural History 7(16): 161-182.


Other references:

Álvarez-Castañeda, Sergio Ticul and Cortes-Calva, Patricia. (2002). Extirpation of bailey's pocket mouse, Chaetodipus baileyi fornicatus (Heteromyidae: Mammalia), from Isla Montserrat, Baja California Sur, Mexico. Western American Naturalist 62: 496-497.

Álvarez-Castañeda, Sergio Ticul and Ortega-Rubio, Alfredo. (2003). Current status of rodents on islands in the Gulf of California. Biological Conservation 109(2): 157-163.

Linzey, A.V., Timm, R., Álvarez-Castañeda, S.T., Castro-Arellano, I. & Lacher, T. (2008). Chaetodipus rudinoris. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.1. ( Downloaded on 13 September 2011.


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