Eisentrauts shrew
| Eisentrauts shrew | ||||||||||||
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| Scientific name | ||||||||||||
| Crocidura eisentrauti | ||||||||||||
| Heim de Balsac , 1957 |
Eisentraut's shrew ( Crocidura eisentrauti ) is a species of shrew from the genus of the white-toothed shrew ( Crocidura ). It is endemic to the Cameroon Mountain in Cameroon . The species name refers to the German zoologist Martin Eisentraut (1902–1994), who collected the type specimens in February 1954 .
features
Eisentraut's shrew reaches a head-trunk length of 68 to 78 mm, a tail length of 53 to 62 mm, a hind foot length of 11 to 14 mm, an ear length of 6 to 10 mm and a weight of 8 to 11 g. The skull length is 19.5 to 20.4 mm and the skull width 8.4 to 9.0 mm. The total length of the upper row of teeth from the first incisor to the third molar is 7.9 to 8.8 mm. The fur is soft and dense. The fur hairs of the back center line are 4 to 5 mm long. The back fur is brown to pale reddish brown. The hair is gray on the basal half and brown on the terminal half. The peritoneum is gray-brown with gray hair at the base and light brown to gray-brown or white hair tips. The ears are dark, the front part is partially covered with hair. The front and rear feet are brown or gray-brown. The tail is relatively long and makes up about 79 percent of the head-torso length. It is two-colored, brown on the top, light or whitish on the underside, and 33 to 50 percent covered with fur. The skull is fairly flat and slightly raised at the rear end. The upper incisor is small and bumpy. The first tooth hump is large and slightly pointed. The second and third cusps are almost the same size. All three tooth cusps have a poorly developed tooth bulge. The karyotype and the number of teats are unknown.
habitat
Eisentraut's shrew inhabits the alpine grassland on the Cameroon Mountain above the tree line at altitudes between 2000 and 3000 m. The habitat is dominated by Schefflera plants.
Lifestyle and reproductive behavior
Little is known about the way of life of Eisentraut's shrew. Two pregnant females were killed in April. One female had two embryos, the other three.
status
Eisentraut's shrew is known only from a few specimens collected by Henri Heim de Balsac and Martin Eisentraut in the 1950s and 1960s . It has a very limited distribution area of about 10 km². The IUCN classifies the species in the category "endangered" ( vulnerable ). Stock figures are not available. Volcanic eruptions are considered the greatest potential threat.
literature
- Rainer Hutterer : Eisentraut's shrew. In: Jonathan Kingdon, Thomas M. Butynski, David CD Happold, Meredith Happold (Eds.): Mammals of Africa. Volume 4: Hedgehogs, shrews and bats. Bloomsbury, London et al. 2013, ISBN 978-1-4081-2254-9 , pp. 73-74.
Web links
- Crocidura eisentrauti in the endangered Red List species the IUCN 2012. Posted by: Rainer Hutterer & K. Powell, 2008. Accessed September 22, 2013.