Mouse hamster

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Mouse hamster
Mouse hamster

Mouse hamster

Systematics
Order : Rodents (Rodentia)
Subordination : Mouse relatives (Myomorpha)
Superfamily : Mice-like (Muroidea)
Eumuroida
Family : Calomyscidae
Genre : Mouse hamster
Scientific name of the  family
Calomyscidae
Vorontsov & Potapova , 1979
Scientific name of the  genus
Calomyscus
Thomas , 1905

The mouse hamsters ( Calomyscus ) are a genus of the mice that is common in western Asia . They have nothing in common with hamsters in appearance, but are perhaps related to them. The assignment of this genus is still largely unclear.

The following eight types are distinguished:

Sometimes, however, all mouse hamsters are assigned to a single species, which is then called Calomyscus bailwardi .

Mouse hamsters look like a mouse. They have a head and trunk length of seven to nine centimeters, plus eight to ten centimeters of tail. They are colored sand- or gray-brown on the top and white on the underside. The big ears are noticeable.

Habitat are semi-deserts and steppes as well as forests at altitudes between 400 and 3500 meters. Mouse hamsters are nocturnal and feed on seeds and other plant material. During the day they are hidden in buildings. Since they cannot dig well themselves, they often use the abandoned burrows of other animals, such as racing rats .

The systematic position of the mouse hamsters is unclear. They look most similar to the American white-footed mice , which belong to the New World mice . The correspondences are so numerous that the mouse hamsters have already been placed among the New World mice by some zoologists , which would make them the only old-world representatives of this kinship group. Because of the peculiarities of the bit, a position near the hamster is more likely. In most classifications, the mouse hamsters are isolated and are considered as a separate subfamily or family (Calomyscidae).

literature

Web links

Commons : Calomyscus  - collection of images, videos and audio files