The link rat (''Deomys ferrugineus'') is a species of rodent in the family

Muridae The Muridae, or murids, are the largest family of rodents and of mammals, containing approximately 1,383 species, including many species of mice, rats, and gerbils found naturally throughout Eurasia, Africa, and Australia. The name Muridae come ...

. It is also known by the common name Congo forest mouse.Schlitter, D. & Kerbis Peterhans, J. 2008
''Deomys ferrugineus''.
The IUCN Red List of Threatened Species. Version 2014.3. Downloaded on 10 April 2015. It is native to central Africa. It is 12–14.5 cm long with a 15–21 cm long tail. It weighs 40-70 g. It has long legs and a pointed, narrow head, surmounted by enormous ears. It has a very long, bicoloured

tail The tail is the section at the rear end of certain kinds of animals’ bodies; in general, the term refers to a distinct, flexible appendage to the torso. It is the part of the body that corresponds roughly to the sacrum and coccyx in mammals, r ...

. The back and

forehead In human anatomy, the forehead is an area of the head bounded by three features, two of the skull and one of the scalp. The top of the forehead is marked by the hairline, the edge of the area where hair on the scalp grows. The bottom of the fore ...

are rich orange and brown and the underside is white. The rump hairs are stiff. The link rat is

nocturnal Nocturnality is an animal behavior characterized by being active during the night and sleeping during the day. The common adjective is "nocturnal", versus diurnal meaning the opposite. Nocturnal creatures generally have highly developed sens ...

and

crepuscular In zoology, a crepuscular animal is one that is active primarily during the twilight period, being matutinal, vespertine, or both. This is distinguished from diurnal and nocturnal behavior, where an animal is active during the hours of daylig ...

. It prefers seasonally flooded

forest A forest is an area of land dominated by trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, and ecological function. The United Nations' ...

floors between

Cameroon Cameroon (; french: Cameroun, ff, Kamerun), officially the Republic of Cameroon (french: République du Cameroun, links=no), is a country in west-central Africa. It is bordered by Nigeria to the west and north; Chad to the northeast; the C ...

and the

Victoria Nile The White Nile ( ar, النيل الأبيض ') is a river in Africa, one of the two main tributaries of the Nile, the other being the Blue Nile. The name comes from the clay sediment carried in the water that changes the water to a pale color. ...

. It has a widespread but scattered distribution and is seldom common. It feeds mainly on

insect Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body ( head, thorax and abdomen), three pairs ...

crustacean Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean group ...

slug Slug, or land slug, is a common name for any apparently shell-less terrestrial gastropod mollusc. The word ''slug'' is also often used as part of the common name of any gastropod mollusc that has no shell, a very reduced shell, or only a smal ...

s and some fallen

fruit In botany, a fruit is the seed-bearing structure in flowering plants that is formed from the ovary after flowering. Fruits are the means by which flowering plants (also known as angiosperms) disseminate their seeds. Edible fruits in particu ...

s, notably palm-nut husks. The link rat has traditionally been placed as a member of the subfamily Dendromurinae along with the African climbing mice, but has been demonstrated to be more closely related to the

spiny mice The term spiny mouse refers to any species of rodent within the genus ''Acomys''. Similar in appearance to mice of the genus '' Mus'', spiny mice are small mammals with bare, scaled tails. However, their coats are endowed with unusually stiff gu ...

on the basis of

molecular A molecule is a group of two or more atoms held together by attractive forces known as chemical bonds; depending on context, the term may or may not include ions which satisfy this criterion. In quantum physics, organic chemistry, and bioche ...

data. A new subfamily (Deomyinae) has now been created, which contains this species, plus the

spiny mouse The term spiny mouse refers to any species of rodent within the genus ''Acomys''. Similar in appearance to mice of the genus '' Mus'', spiny mice are small mammals with bare, scaled tails. However, their coats are endowed with unusually stiff gu ...

(''Acomys''), the brush furred mice (''Lophuromys'' spp.), and

Rudd's mouse Rudd's mouse or the white-bellied brush-furred rat (''Uranomys ruddi'') is the only member of the genus ''Uranomys''. This animal is closely related to the spiny mice, brush-furred mice, and the link rat. Description Head and body sizes ran ...

(''Uranomys''). This group is supported by several recent phylogenetic studies.Lecompte, E., et al. (2008)
Phylogeny and biogeography of African Murinae based on mitochondrial and nuclear gene sequences, with a new tribal classification of the subfamily.
''BMC Evolutionary Biology'' 8(1), 199.

References

Further reading