The Albertin Rift is an ecoregion which extends from the North of Albert Lake in Blue Mountains to the South extreme of Tanganyika Lake. This area attracts the attention of scientists. In fact it is characterized by an endemic, specific wealth and vey and very high vulnerable. We would like to contribute to the knowledge of taxa of the earth's biodiversity and aquatic one according to the logic: "World Conservation Monitoring Center", as regards to conservation. We have also listed from bats twenty three species and two under orders in four sites. The order of Megachiroptera is represented by only one family where as in the one of Microchiroptera, we have found six families and ten species'. The demoeologial parameters have shown that if is the Kahuzi Biega National Park and its vicinities with a superior abundance seem to have a great specific resource. Then, come the forest reserve of Bururi in Burundi and the mountain of Misotshi-Kabogo. At last we have the Community Reserve of Bushema. The indication of Shannon diversity confirms these facts. The similarity quotient of Sorensen proves to be higher between the Kahuzi Biega National Park and Bushema, afterwards between Misotshi-Kabogo and Bushema. It's feeble between Bururi-Kahuzi and Bururi-Bushema. All the species inventoried are important according to their role in the troffic chain. Some are predators, for example the Microchiroptera (insectivorous) and they are all preys of carnivorous like the birds, snack …

This study has been conducted in Albertin Rift, East Democratic Republic of Congo at Misotshi Kabogo (790m – 1950m of altitude) sites located within Mitumba mountain chaine at the west side of Tanganyika Lac and Kahuzi (2200m –3308m of altitude) a mountain of Kahuzi Biega National Park in the east of Kivu Lac at the. The goal consisted of fournishing the information related to status of these small mammals of the species of Soricidae family. The specimens had been collected with the help of 11 pitfalls that were escaped into soil and spaced at 5m from each other on the same transect and baited by meat or fish. The laboratory helped to identify and to analyse data and some were carried out to museum. Some species of Crocidura, Myosorex, Scutisorex, Suncus and Sylvisorex had been captured. Musisi swamp in Kahuzi region is known to be the richest in abundance. Crocidura olivieri is the only species found in the both sites. Only four species are located in Misotshi-Kabogo and eighteen specifically in Kahuzi. Three new species have been described; Myosorex jejei at Kahuzi localised in the tow habitats. To this is added some vulnerable, endemic, nearly endemic and poorly known or data deficient.