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Chilean rock rat
The Chilean rock rat (''Aconaemys fuscus'') is a species of rodent in the family Octodontidae. It is found in the high Andes of Argentina and Chile.
==Description==
The Chilean rock rat is a short-tailed rodent. Rock rats in the genus ''Aconaemys'' are similar to those in the genus ''Ctenomys'' but not so specialised for life underground. The ears are rather larger, the claws on the front feet which are used for digging are smaller, and the edging of hairs on the hind feet, used for shifting loose soil, is reduced in size.〔
The upper parts of the Chilean rock rat are dark brown, with the underparts ranging from reddish-brown to white. Sample specimens described in 1966 and 1984, from two different locations, had a head-and-body length ranging from to , with the tail adding another – to the animal's total length.
Its karyotype has 2n = 56 and FN = 108.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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