Philippines hairtail rats
| Philippines hairtail rats | ||||||||||||
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Batomys granti (below) |
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| Batomys | ||||||||||||
| Thomas , 1895 |
The Philippines hairtail rats ( Batomys ) are a genus of rodents from the group of old world mice (Murinae) living in the Philippines .
Six types are distinguished:
- The Luzon hair-tail rat ( Batomys granti ) on Luzon ,
- the Mindanao hair-tail rat ( Batomys salomonseni ) on Mindanao , Leyte and Biliran ,
- the big-toothed hair-tail rat ( Batomys dentatus ) on Luzon
- the Dinagat hair-tail rat ( Batomys russatus ) on Dinagat and
- the Hamiguitan hairtail rat ( Batomys hamiguitan ) on Mindanao
- Batomys uragon from Mount Isarog in the southeast of the island of Luzon
The hairtail rats reach head body lengths of 18 to 20 centimeters, the tail measures 14 to 18 centimeters. They are colored red-brown ( granti ), light brown ( dentatus ) or dark brown ( salomonseni ) on top . They differ from the Luzon tree rats by a relatively shorter tail and a more pointed skull shape.
All six species are little known. The Luzon hairtail rat lives in the mountain rainforests on the Isarog in the southeast of the island of Luzon and seems to be quite common there. It was also found in northern Luzon, but is extremely rare there. The specimens were seen at altitudes around 2100 meters. The IUCN lists them as " near threatened ".
The Mindanao hair-tail rat is only common on Leyte, on the eponymous island of Mindanao only a few specimens have been found on the Kitanglad at heights of around 2000 meters. According to the IUCN, the species is not endangered.
The large-toothed hair-tail rat is only known from a single specimen found in the province of Benguet. Nothing is known about their degree of endangerment.
The Dinagat hair-tail rat was not described until 1998. According to IUCN, the species is ( "high risk" endangered ).
The Hamiguitan hair-tail rat was not described until 2008. Their habitat is the Hamiguitan region in Mindanao. It is in the “ data deficient ” category in the IUCN Red List.
The Philippines hairtail rats are part of the Phloeomys group , a primitive group of Old World mice native to the Philippines.
Individual evidence
- ^ Danilo S. Balete, Eric A. Rickart, Lawrence R. Heaney & Sharon A. Jansa: A new species of Batomys (Muridae, Rodentia) from southern Luzon Island, Philippines. Proceedings of the Biological Society of Washington 128, 1, pp. 22-39, 2015 doi : 10.2988 / 0006-324X-128.1.22
literature
- Ronald M. Nowak: Walker's Mammals of the World. 2 volumes. 6th edition. Johns Hopkins University Press, Baltimore MD et al. 1999, ISBN 0-8018-5789-9 .
- Don E. Wilson , DeeAnn M. Reeder (Eds.): Mammal Species of the World. A taxonomic and geographic Reference. 2 volumes. 3. Edition. Johns Hopkins University Press, Baltimore MD 2005, ISBN 0-8018-8221-4 .
- Danilo S. Balete , Lawrence R. Heaney, Eric A. Rickart, Roselyn S. Quidlat, Jason C. Ibanez: A new species of Batomys (Mammalia: Muridae) from eastern Mindanao Island, Philippines. In: Proceedings of the Biological Society of Washington. Vol. 121, No. 4, 2008, ISSN 0006-324X , pp. 411-428, doi : 10.2988 / 07-47.1 .
Web links
- Batomys on the IUCN Red List of Threatened Species. Retrieved October 18, 2009.
- Luzon hair-tail rat in "Mammalian Fauna of the Philippine Islands", with picture
- Mindanao hair-tail rat in "Mammalian Fauna of the Philippine Islands", with picture