Southeast Asian shrew

Crocidura fuliginosa is a shrew from the kind of white tooth shrew ( Crocidura ). It occurs in much of Southeast Asia.

Features

With a head-body length of 7.9 to 10.5 centimeters and a weight of about 13 grams of Crocidura fuliginosa one of the larger shrew species. The tail reaches a length of 62-89 millimeters and usually about 80% to a maximum of 90 % of head-body length. The hind foot has a length of 15 to 19 mm and the ear of about 10 millimeters. The back fur is smoky brown to dark gray black, the ventral side, the staining gradually changed to a Dunkelgrau.Der tail is dark brown and on the bottom a little brighter, but not clearly contrasted on the top.

The skull has a total length of 22 to 25 millimeters. Like all species of the genus has the kind in the maxilla per half an incisor ( incisor ) and then three unicuspid teeth, one premolar and three molars. In the mandible, it has, however, a single canine ( canine ) behind the incisor. Overall, the animals thus have a set of teeth from 28 teeth. The roots are not pigmented white, as in all tooth shrews in contrast to those of the Rotzahnspitzmäuse.

The genome of Crocidura fuliginosa was examined animals from Indochina and the Malay Peninsula. It could be found that the diploid chromosome complement of 2n = 40 (FN = 54-58 ) is.

Dissemination

Crocidura fuliginosa occurs in much of Southeast Asia. The distribution area extends from the central and southern regions in the east of the People's Republic of China on the entire Southeast Asian mainland. She is found in Cambodia, Laos, Malaysia, Myanmar, Thailand and Vietnam. In India, the species was isolated, specific data are available, however. The populations of Taiwan are against it as its own kind, the height distribution is probably below 3000 meters.

Way of life

The life of Crocidura fuliginosa is largely unexplored as with many shrews. It is believed that it occurs mainly in the lowlands in the area of river valleys and foothills with dry and hot weather. Like all shrews feed on this species of invertebrates, especially insects and worms. About the reproduction is not known.

System

Crocidura fuliginosa is classified as a separate species within the genus of white tooth shrew ( Crocidura ), which consists of about 170 species. The first scientific description comes from Edward Blyth in 1856, who described an individual from Schwegyin near the town Bago in Myanmar today. In this way several times today regarded as separate species forms were filed, especially Crocidura malayana that occurs on the Malay Peninsula and some offshore islands. In findings from the Chinese province of Zhejiang from 1993 that are associated with this type, it is likely to be a separate, previously undescribed species

Within the species called Crocidura fuliginosa subspecies another dracula is today distinguished addition to the nominate Crocidura fuliginosa fuliginosa. This is still sometimes outsourced as a separate species Crocidura dracula.

Threat and protection

Crocidura fuliginosa is classified by the International Union for Conservation of Nature and Natural Resources (IUCN ) due to the very large distribution area, the assumed large populations and the relatively large adaptability to altered habitats as not at risk ( least concern ). In addition, the species occurs within its range in numerous protected areas. Potential threats to the overall populations of the species are not known.