Order Rodentia - Family Muridae Author Wilson, Don E. Author Reeder, DeeAnn text 2005 The Johns Hopkins University Press Baltimore Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2 1189 1531 book chapter 0-8018-8221-4 10.5281/zenodo.7316535 Grammomys ibeanus (Osgood 1910) [Grammomys] ibeanus ( Osgood 1910 ) , Field Mus . Nat. Hist. Publ., Zool. Ser., 10: 8 . Type Locality: Kenya , Molo. Vernacular Names: East African Grammomys . Distribution: From extreme NE Zambia (Nyika Plateau; Ansell, 1978 ) and Malawi ( Ansell and Dowsett, 1988 ) north through highlands of E Tanzania ( Stanley et al., 1998 ; and specimens in MCZ ) and Kenya to S Sudan ( Hollister, 1919 ; Hutterer and Dieterlen, 1984 ). Conservation: IUCN – Lower Risk (lc). Discussion: Morphological and geographic definition of G. ibeanus is unsatisfactory, particularly the extent of its distribution in Tanzania . Hutterer and Dieterlen (1984) treated ibeanus as a form of G. cometes , but the striking morphological distinctions between samples of ibeanus and the type series of cometes prompted our specific ranking of ibeanus (see also account of G. cometes ).