Gansu shrew (Chodsigoa)
| Gansu shrew | ||||||||||||
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| Chodsigoa lamula | ||||||||||||
| ( Thomas , 1912) |
The Gansu shrew ( Chodsigoa lamula ) is a species of shrew from the genus Chodsigoa . It is endemic to the People's Republic of China and occurs in a narrow area from central to southern China.
features
With a head-trunk length of 5.4 to 7.5 centimeters, the Gansu shrew is one of the small species of shrew. The tail reaches a length of 40 to 66 millimeters and the rear foot from 11 to 16 millimeters. The dorsal coloration is uniformly brown, the belly is a little more brown to match the appearance of the sympatric occurring Chodsigoa hypsibia that something is, however, larger.
| 1 | · | 3 | · | 1 | · | 3 | = 28 |
| 1 | · | 1 | · | 1 | · | 3 |
The skull is 19 to 19 millimeters long. Like all species of the genus has the type in the maxilla per half an incisor (incisor) and then three unicuspid teeth, a Vorbackenzahn (premolar) and three molars (molar). In the lower jaw, however, it has a single canine behind the incisor. In total, the animals have a set of 28 teeth. The tooth roots are colored red as in most red-toothed shrews.
distribution
The Gansu shrew is found in a narrow area in the central to southern People's Republic of China , where it is endemic . It is possible that it occurs in further areas between the known localities.
The altitude distribution is around 3000 meters.
Way of life
As with all species of the genus, very little data is available on the way of life of this species. Like all shrews, these species also feed on invertebrates. The species probably uses forests at altitudes around 3000 meters as habitat.
Systematics
The Gansu shrew is classified as a separate species within the genus Chodsigoa , which consists of eight species. The first scientific description comes from Oldfield Thomas from 1912, who described an individual from Lintan in the province of Gansu . Originally the species was regarded as a subspecies of the sympatric De Winton shrew ( Chodsigoa hypsibia ), and in isolated cases Chodsigoa parva was also regarded as a subspecies of the Gansu shrew.
Apart from the nominate form Chodsigoa lamula lamula, no further subspecies are distinguished within the species .
Threat and protection
The Gansu shrew is classified by the International Union for Conservation of Nature and Natural Resources (IUCN) as "least concern" due to its relatively large distribution area of more than 20,000 km² and the assumed size of the population. Concrete population numbers and threats to the species are not known.
literature
- Robert S. Hoffmann, Darrin Lunde: Lamulate Shrew. In: Andrew T. Smith , Yan Xie: A Guide to the Mammals of China. Princeton University Press, Princeton 2008, ISBN 978-0-691-09984-2 , p. 308.
Web links
- Chodsigoa lamula inthe IUCN 2013 Red List of Threatened Species . Listed by: AT Smith, CH Johnston, 2008. Retrieved July 16, 2013.
supporting documents
- ↑ a b c d e Robert S. Hoffmann, Darrin Lunde: Lamulate Shrew. In: Andrew T. Smith , Yan Xie: A Guide to the Mammals of China. Princeton University Press, Princeton 2008, ISBN 978-0-691-09984-2 , p. 308.
- ↑ a b c Chodsigoa lamula in the Red List of Threatened Species of the IUCN 2013.1. Listed by: AT Smith, CH Johnston, 2008. Retrieved July 16, 2013.
- ↑ a b c Chodsigoa lamula ( Memento of the original from November 10, 2013 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. . In: 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 .
