Winkelmann's mouse (''Peromyscus winkelmanni'') is a species of
rodent
Rodents (from Latin , 'to gnaw') are mammals of the Order (biology), order Rodentia ( ), which are characterized by a single pair of continuously growing incisors in each of the upper and Mandible, lower jaws. About 40% of all mammal specie ...
in the family
Cricetidae
The Cricetidae are a family of rodents in the large and complex superfamily Muroidea. It includes true hamsters, voles, lemmings, muskrats, and New World rats and mice. At over 870 species, it is either the largest or second-largest family ...
, It is a species of the genus ''
Peromyscus'', a closely related group of
New World mice often called "deermice". It is
endemic
Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...
to
Mexico
Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...
, and is named for John R. Winkelmann, who collected the first specimens.
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]
Description
Rather larger than a house mouse, an adult Winkelmann's mouse measures in total length, about half of which is the tail, and weighs around . The fur is tawny mixed with black over most of the body, becoming darker on the back, sometimes forming a distinct black band in the center of the back, and fading to bright tan or cinnamon on the flanks and cheeks. The under parts are pale grey. The tail has only a thin covering of hair, typically darker on the upper than on the lower surface.
Compared with other, related, species, the ears are relatively small and dark in color, and the skull is slightly larger. However, Winkelmann's mouse can most readily be distinguished from its close relatives by the shape of its penis, which has a partially corrugated glans. Females have six teats.[
]
Distribution and habitat
Winkelmann's mouse is found only in a relatively small area of southern Michoacán
Michoacán, formally Michoacán de Ocampo, officially the Free and Sovereign State of Michoacán de Ocampo, is one of the 31 states which, together with Mexico City, compose the Political divisions of Mexico, Federal Entities of Mexico. The stat ...
in Mexico, where it inhabits isolated regions on the western slopes of the Sierra Madre Occidental. It lives in woodland patches of tall oak trees, mixed with pines. These areas have dense understories, and thick epiphyte
An epiphyte is a plant or plant-like organism that grows on the surface of another plant and derives its moisture and nutrients from the air, rain, water (in marine environments) or from debris accumulating around it. The plants on which epiphyt ...
s, including patches of mosses, orchid
Orchids are plants that belong to the family Orchidaceae (), a diverse and widespread group of flowering plants with blooms that are often colourful and fragrant. Orchids are cosmopolitan plants that are found in almost every habitat on Eart ...
s, and bromeliad
The Bromeliaceae (the bromeliads) are a Family (biology), family of monocot flowering plants of about 80 genera and 3700 known species, native mainly to the Tropics, tropical Americas, with several species found in the American subtropics and on ...
s.[ There are no subspecies. Because it is only found in such a small area, and because much of the woodland on which it depends is currently subject to logging, it is formally considered an ]endangered species
An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching, inv ...
by the IUCN
The International Union for Conservation of Nature (IUCN) is an international organization working in the field of nature conservation and sustainable use of natural resources. Founded in 1948, IUCN has become the global authority on the status ...
.
References
{{Taxonbar, from=Q1765709
Peromyscus
Mammals described in 1977
Taxonomy articles created by Polbot