Sundasciurus tenuis (Horsfield, 1824) . Zool. Res. Java, 1824:153.

TYPE LOCALITY: Singapore .

DISTRIBUTION: Malaysian subregion, except Java and SW Philippines.

SYNONYMS: altitudinus (Robinson and Kloss, 1916); bancarus (Miller, 1903); batus (Lyon, 1916); gunong (Robinson and Kloss, 1914); mansalaris (Miller, 1903); modestus (Müller, 1840); parvus (Miller, 1901); procerus (Miller, 1901); sianticus (Chasen and Kloss, 1928); sordidus (Kloss, 1911); surdus (Miller, 1900); tahan (Bonhote, 1908); tiomanicus (Robinson, 1917).

COMMENTS: Subgenus Sundasciurus . The name pumilus (see synonym in fraterculus) was previously assigned to tenuis (Robinson and Kloss, 1918a:229); but see Chasen (1940:144).