Oryzomys peninsulae Thomas, 1897:548

Lower Californian rice rat



Taxonomy & Nomenclature

Synonym/s: Oryzomys palustris peninsulae Thomas, 1897:548; Oryzomys couesi peninsularis Thomas, 1897:548; Oryzomys couesi peninsulae Thomas, 1897:548


Conservation Status


Last record: 23 May 1896 or later (Carleton & Arroyo-Cabrales, 2009:122)



Baja California, Mexico & California, USA


Biology & Ecology




Holotype: BMNH (skin and skull, male)


Other specimens:

USNM 93398
USNM 146607 to 146620
USNM 147340


21 specimens in total exist of O. peninsulae (Carleton & Arroyo-Cabrales, 2009:99)






Original scientific description:

Thomas, Oldfield. (1897). Description of new bats and rodents from America. Annals and Magazine of Natural History, series 6, 20: 544-553.


Other references:

Alvarez-Castañeda, Sergio Ticul. (1994). Current status of the rice rat, Oryzomys couesi peninsularis. The Southwestern Naturalist 39(1): 99-100.

Carleton, M. D. and Arroyo-Cabrales, J. (2009). Review of the Oryzomys couesi complex (Rodentia: Cricetidae: Sigmodontinae) in western Mexico. Bulletin of the American Museum of Natural History 331: 94-127.

Goldman, Edward Alphonso. (1918). The rice rats of North America (Genus Oryzomys). North American Fauna 43: 1-100. [esp. pp. 45-46]

Merriam, C. H. (1901). Synopsis of the rice rats (genus Oryzomys) of the United States and Mexico. Proceedings of the Washington Academy of Sciences 3: 273-295.

Monroy-Gamboa, Alina Gabriela. (2021). The ghost mammals from Mexico and their implications. Therya 12(3): 1-10.


<< Back to the Rodents database