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Caged Tamias chipmunk, Tokyo area. The genus Tamias was formerly divided into three subgenera that, in sum, included all chipmunk species: Tamias, the eastern chipmunk and other fossil species; Eutamias, of which the Siberian chipmunk (E. sibiricus) is the only living member; and Neotamias, which includes the 23 remaining, mostly western ...
A small species, it reaches about 30 cm (12 in) in length including the tail, and a weight of 66–150 g (2.3–5.3 oz). [15] It has reddish-brown fur on its upper body and five dark brown stripes contrasting with light brown stripes along its back, ending in a dark tail.
Chipmunks are classified as four genera: Tamias, of which the eastern chipmunk (T. striatus) is the only living member; Eutamias, of which the Siberian chipmunk (E. sibiricus) is the only living member; Nototamias, which consists of three extinct species, and Neotamias, which includes the 23 remaining, mostly western North American, species.
Three subspecies have recently been recognized as distinct species by some authorities: [6] Crater chipmunk, Neotamias cratericus, split from N. amoenus [7] Coulee chipmunk, Neotamias grisescens, split from N. minimus [7] Sierra del Carmen chipmunk, Neotamias solivagus, split from N. durangae [8]
It is the smallest species of chipmunk, measuring about 15.7–25 cm (6.2–9.8 in) in total length with a weight of 25–66 g (0.88–2.33 oz). [3] The body is gray to reddish-brown on the sides, and grayish white on the underparts.
The Ohio chipmunk (Tamias striatus ohioensis), also known as the Ohioan chipmunk, or the Ohio eastern chipmunk, is a subspecies of the eastern chipmunk that is native to parts of Wisconsin, Illinois, Indiana, Michigan, Kentucky, and Ohio, with some populations potentially present in far north-eastern to western Pennsylvania, and very rarely into West Virginia. [1]
Tamias aristus is an extinct species of chipmunk that lived during the late Pleistocene epoch. It was characterized from a fossilized skull found in a limestone quarry in Ladds, Bartow County, Georgia. [1] The name is derived from the Greek aristos, meaning noblest.
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