''Chiropodomys'' (or pencil-tailed tree mice) is a genus of
Old World rats and mice native to
Southeast Asia
Southeast Asia, also spelled South East Asia and South-East Asia, and also known as Southeastern Asia, South-eastern Asia or SEA, is the geographical south-eastern region of Asia, consisting of the regions that are situated south of mainland ...
and northeast
India
India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area, the List of countries and dependencies by population, second-most populous ...
.
[ They are tree-dwelling, very small mice, mostly found in ]tropical rainforest
Tropical rainforests are rainforests that occur in areas of tropical rainforest climate in which there is no dry season – all months have an average precipitation of at least 60 mm – and may also be referred to as ''lowland equator ...
. In total six extant species have been identified, but only one of these, '' Chiropodomys gliroides'', is common and widely distributed, and has been extensively studied.
Species
Genus ''Chiropodomys'' — pencil-tailed tree mice:[
* Palawan pencil-tailed tree mouse, ''Chiropodomys calamianensis'' Taylor, 1934, ]Palawan
Palawan (), officially the Province of Palawan ( cyo, Probinsya i'ang Palawan; tl, Lalawigan ng Palawan), is an archipelagic province of the Philippines that is located in the region of Mimaropa. It is the largest province in the country in t ...
and neighboring islands
* Indomalayan pencil-tailed tree mouse, ''Chiropodomys gliroides'' Blyth, 1856, northeast India
India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area, the List of countries and dependencies by population, second-most populous ...
, southeastern China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's List of countries and dependencies by population, most populous country, with a Population of China, population exceeding 1.4 billion, slig ...
, mainland Southeast Asia, Sumatra
Sumatra is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the sixth-largest island in the world at 473,481 km2 (182,812 mi.2), not including adjacent i ...
, Java
Java (; id, Jawa, ; jv, ꦗꦮ; su, ) is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea to the north. With a population of 151.6 million people, Java is the world's mo ...
* Koopman's pencil-tailed tree mouse, ''Chiropodomys karlkoopmani'' Musser, 1979, Mentawai Islands Mentawai may refer to:
* Mentawai Islands
* Mentawai Strait
* Mentawai people
* Mentawai language
The Mentawai language is an Austronesian language, spoken by the Mentawai people of the Mentawai Islands, West Sumatra, Indonesia.
Dialects
Ac ...
* Large pencil-tailed tree mouse, ''Chiropodomys major'' Thomas, 1893, Borneo
Borneo (; id, Kalimantan) is the third-largest island in the world and the largest in Asia. At the geographic centre of Maritime Southeast Asia, in relation to major Indonesian islands, it is located north of Java, west of Sulawesi, and e ...
* Gray-bellied pencil-tailed tree mouse, ''Chiropodomys muroides'' Medway, 1965, Borneo
* Small pencil-tailed tree mouse, ''Chiropodomys pusillus'' Thomas, 1893, Borneo
* †'' Chiropodomys maximus'', Thailand
Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is b ...
* †'' Chiropodomys primitivus'', southern China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's List of countries and dependencies by population, most populous country, with a Population of China, population exceeding 1.4 billion, slig ...
Description
Species of ''Chiropodomys'' have a body length of 7 to 12 cm, plus a tail of 9 to 17 cm. They are generally gray or brown on the back and white underneath. The tail is only sparsely covered with hair, but has somewhat more at the end, giving the appearance of a pencil
A pencil () is a writing or drawing implement with a solid pigment core in a protective casing that reduces the risk of core breakage, and keeps it from marking the user's hand.
Pencils create marks by physical abrasion, leaving a tra ...
, thus the genus name.
''Chiropodomys gliroides'' is particularly common in bamboo
Bamboos are a diverse group of evergreen perennial flowering plants making up the subfamily Bambusoideae of the grass family Poaceae. Giant bamboos are the largest members of the grass family. The origin of the word "bamboo" is uncertain, ...
forest. It is active at night, sleeps during the day in a nest in the bamboo, padded with leaves. It eats exclusively plants.
Previously, it was thought that ''Chiropodomys'' were closely related to the genus '' Hapalomys'' (marmoset rats), with both forming a clade with ''Micromys
''Micromys'' is a genus of small rodents in the subfamily Murinae. The genus contains two living species: the widespread Eurasian harvest mouse (''Micromys minutus'') of much of Europe and Asia; and the more restricted Indochinese harvest mouse ...
'' and ''Vandeleuria
''Vandeleuria'' is a small genus of rodent from Asia with only three species. It is the only member of the tribe
The term tribe is used in many different contexts to refer to a category of human social group. The predominant worldwide us ...
''; however, more recent phylogenetic studies support them being closely allied with the Australasian mice and rats of the tribe Hydromyini
Hydromyini is a very large, diverse tribe of muroid rodents in the subfamily Murinae. They are the dominant native rodents in Australasia and one of only two native rodent groups there, the other being the ''R. fuscipes'' group of the genus ''Rat ...
, either as a distinct tribe of their own or as a group within Hydromyini.
References
* Ronald M. Nowak: ''Walker's Mammals of the World''. Johns Hopkins University Press, 1999
* Wells K, Pfeiffer M, Lakim MB & Linsenmair KE (2004) "Arboreal spacing patterns of the Large pencil-tailed tree mouse ''Chiropodomys major'' in a rainforest in Sabah, Malaysia." ''Ecotropica'' 10 : 15-22
* Wells K, Pfeiffer M, Lakim MB & Linsenmair KE (2004) "Use of arboreal and terrestrial space by a small mammal community in a tropical rain forest in Borneo, Malaysia." ''Journal of Biogeography' 31 : 641-652.
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from the German Wikipedia
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, retrieved on November 22, 2006.
{{Taxonbar, from=Q579868
Chiropodomys
Fauna of Southeast Asia
Taxa named by Wilhelm Peters