Sylvilagus insonus Nelson, 1904:103

Omilteme cottontail, Omiltemi rabbit



Taxonomy & Nomenclature

Synonym/s: Lepus insonus Nelson, 1904:103


Conservation Status


Last record: 1998 or before (Cervantes et al., 2004)

IUCN RedList status: Endangered


One recent sighting (1991) and one skin obtained from hunters (1998) may indicate that this species still survives (Cervantes et al. 2004). It's nocturnal habit may explain the absence of recent records of the species, at least by western scientists. It may be ethnoknown, as evidenced by the putatively recent skin obtained from hunters.



Sierra Madre del Sur (near Omiltemi), Guerrero State, Mexico












Original scientific description:

Nelson, E. W. (1904). Description of seven new rabbits from Mexico. Proceedings of the Biological Society of Washington 17: 103-110.


Other references:

Cervantes, F. A. and Lorenzo, C. (1997). Sylvilagus insonus. Mammalian Species 568: 1-4.

Cervantes, F. A., Lorenzo, F. J. and González, F. X. (2004). The Omilteme rabbit (Sylvilagus insonus) is not extinct. Mammalian Biology 69(1): 61-64.

Chapman, J. A. and Ceballos, G. (1990). Chapter 5: The Cottontails. In: J. A. Chapman and J. C. Flux (eds), Rabbits, hares and pikas: status survey and conservation action plan, pp. 95-110. IUCN, Gland, Switzerland.

Diersing, V. E. (1981). Systematic status of Sylvilagus brasiliensis and S. insonus from North America. Journal of Mammalogy 62: 539-556.

Fisher, Diana O. (2011). Trajectories from extinction: where are missing mammals rediscovered? Global Ecology & Biogeography 20: 415-425. [Appendix S1]

Gureev, A. A. (1964). Fauna SSSR, Mlekopitayushchie, tom. 3, vyp. 10, Zaitseobraznye (Lagomorpha) [Fauna of the USSR, mammals, vol. 3, pt. 10, Lagomorpha]. Nauka, Moscow-Leningrad, 276 pp. (in Russian).

Hershkovitz, P. (1950). Mammals of northern Colombia. Preliminary report no. 6: Rabbits (Leporidae), with notes on the classification and distribution of the South American forms. Proceedings of the United States National Museum 100: 327-375.

Mexican Association for Conservation and Study of Lagomorphs (AMCELA), Romero Malpica, F. J. and Rangel Cordero, H. (2008). Sylvilagus insonus. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.1. ( Downloaded on 17 August 2013.

Nelson, E. W. (1909). The rabbits of North America. North American Fauna 29: 1-313.


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