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The term spiny mouse refers to any species of rodent within the genus Acomys. [1] Similar in appearance to mice of the genus Mus , spiny mice are small mammals with bare tails which contain osteoderms , a rare feature in mammals. [ 2 ]
The painted spiny pocket mouse is a medium-sized species and grows to a head and body length of about 12 cm (4.7 in) with a tail as long again, males being slightly larger than females. The pelage is composed of a mixture of stiff spines with soft, slender hairs, but because the hairs do not curl upward, the spines are the prominent feature of ...
The fur on its back is tawny, each hair being grey at the base with a rufous sub-terminal band and a grey tip. It takes its name from a line of spiny hairs on the posterior part of the back, in older mice the spiny hairs spread forwards along the back towards the head. The ventral fur is white and separated clearly from the flanks.
The Cairo spiny mouse grows to a head and body length of about 3.75 to 5 in (95 to 127 mm) with a tail of much the same length. Adults weigh between 1.5 and 3 oz (43 and 85 g). The colour of the Cairo spiny mouse is sandy-brown or greyish-brown above and whitish beneath. A line of spine-like bristles run along the ridge of the back.
Heteromys is a genus of rodents in the family Heteromyidae, [1] commonly known as spiny pocket mice.It is the only extant genus in the subfamily Heteromyinae which also includes the extinct genera Diprionomys and Metaliomys. [2]
There are seven subspecies of Mexican spiny pocket mouse and there is considerable differences in color and size between different populations. In general it is a medium-sized member of its genus Heteromys, growing to a head and body length of about 12 cm (4.7 in) with a tail of about the same length.