Order Rodentia - Family Sciuridae 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 2 754 818 book chapter 0-8018-8221-4 10.5281/zenodo.7316535 Sundasciurus (Sundasciurus) tenuis (Horsfield 1824) [Sundasciurus (Sundasciurus)] tenuis (Horsfield 1824) , Zool. Res. Java , Vol. 1824: 153 . Type Locality: Singapore . Vernacular Names: Slender Squirrel . Synonyms: Sundasciurus (Sundasciurus) batus (Lyon 1916) ; Sundasciurus (Sundasciurus) mansalaris (Miller 1903) ; Sundasciurus (Sundasciurus) sianticus (Chasen and Kloss 1928) ; Sundasciurus (Sundasciurus) tiomanicus (Robinson 1917) . Subspecies: : Subspecies Sundasciurus (Sundasciurus) tenuis subsp. tenuis Horsfield 1824 Subspecies Sundasciurus (Sundasciurus) tenuis subsp. bancarus Miller 1903 Subspecies Sundasciurus (Sundasciurus) tenuis subsp. modestus Müller 1840 Subspecies Sundasciurus (Sundasciurus) tenuis subsp. parvus Miller 1901 Subspecies Sundasciurus (Sundasciurus) tenuis subsp. procerus Miller 1901 Distribution: Malay Peninsula, Sumatra , Borneo and adjacent small islands. Conservation: IUCN – Lower Risk (lc). Discussion: Subgenus Sundasciurus . The name pumilus (see synonym in fraterculus ) was previously assigned to tenuis ( Robinson and Kloss, 1918 a :229 ) ; but see Chasen (1940:144) .