Sciuridae Author Don E. Wilson Author Thomas E. Lacher, Jr Author Russell A. Mittermeier text 2016 2016-07-31 Lynx Edicions Barcelona Handbook of the Mammals of the World – Volume 6 Lagomorphs and Rodents I 648 837 book chapter 10.5281/zenodo.6840226 d0c4a9a9-e329-4d43-9472-ed77cf56ba95 978-84-941892-3-4 6840226 133. Hose’s Pygmy Flying Squirrel Petaurillus hosei French: Polatouche de Hose / German: Hose-Kleinstgleithornchen / Spanish: Ardilla voladora pigmea de Hose Taxonomy. Sciuropterus hosei Thomas, 1900 , “Toyut River, Baram District, E Sarawak, Malaysia.” This species is monotypic. Distribution. N Borneo, recorded only on few localities (Sepilok, Tasek Merimbun, and Sarawak S to Niah Caves). Descriptive notes. Head—body 75-90 mm, tail 80-98 mm; weight mean 21 g. Dorsal hair of Hose’s Pygmy Flying Squirrel is dark gray but more buff toward midline. Light spot occurs behind eyes. Dark line on cheeks helps to distinguish it from the Lesser Pygmy Flying Squirrel (P. emiliae). Underparts are off-white, with gray underfur showing through. Tail is gray or buffat base, blending to black distally but with whitetip. Habitat. Tropical lowland dipterocarp forests. Food and Feeding. Thereis no information available for this species. Breeding. There is no information availableforthis species. Activity patterns. Hose’s Pygmy Flying Squirrels are nocturnal and arboreal. Movements, Home range and Social organization. There is no information available for this species. Status and Conservation. Classified as Data Deficient on The IUCN Red List. Current population trend of Hose’s Pygmy Flying Squirrel is unknown. It is threatened by logging and habitat destruction. There have been no recent surveys so its distribution may be more widespread than currently thought. More surveys and basic research onits distribution, population status, and natural history are needed to better understand threats and useful conservation action. Bibliography. Duckworth & Francis (2008b), Jackson (2012), Jackson & Thorington (2012), Thorington & Heaney (1981), Thorington, Koprowski et al. (2012).