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Anosy mouse lemur
The Anosy mouse lemur (''Microcebus tanosi'') is a species of mouse lemur known only from the Manantantely Forest and Ivorona Forest in southeastern Madagascar, near Tôlanaro. Specimens were first collected in April 2007, and its discovery was announced in 2013 along with the Marohita mouse lemur (''Microcebus marohita''). It is a relatively large mouse lemur and lives in the same region as the gray mouse lemur (''M. murinus'') and the reddish-gray mouse lemur (''M. griseorufus''), all three of which are found within of each other and are nearly identical in appearance. It has dark brownish fur on its back and light-colored fur on its underside. Nothing is known about its behavior. Its conservation status has not been evaluated by the International Union for Conservation of Nature (IUCN), although its known habitat has degraded since 2007.
==Taxonomy and phylogeny==
The first specimens of Anosy mouse lemur (''Microcebus tanosi'') were collected by biologist Rodin Rasoloarison during field work in April 2007. At the time, he captured six mouse lemurs at Manantantely Forest and four at Ivorona Forest in the Anosy Region of southeastern Madagascar, near the city of Tôlanaro. Of these captured individuals, four were prepared as biological specimens, including skins, skulls, and tissue samples, with the required permits from the government of Madagascar. The Anosy mouse lemur was described concurrently with the Marohita mouse lemur (''Microcebus marohita'') in 2013 by Rasoloarison and researchers David Weisrock, Anne Yoder, Daniel Rakotondravony, and Peter M. Kappeler using molecular analysis. The Anosy mouse lemur belongs to the genus ''Microcebus'' within the family Cheirogaleidae. The holotype was collected on 1 April 2007 at Manantantely Forest. Its species name, ''tanosi'', means "from the Anosy Region" in the Malagasy language.
Despite living in the same region as the gray mouse lemur (''M. murinus'') and the reddish-gray mouse lemur (''M. griseorufus''), within , Rasoloarison ''et al.'' reported no indications of gene flow between these three sympatric species. The populations at Manantantely and Ivorona are considered a distinct species using the metapopulation lineage concept of species. ''M. tanosi'' is nearly identical in appearance to the other eastern mouse lemurs, which are known for being a complex of cryptic species.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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