Sciurinae

Sciurinae is a subfamily of squirrels (in the family Sciuridae), uniting the flying squirrels with certain related tree squirrels. Older sources place the flying squirrels in a separate subfamily (Pteromyinae) and unite all remaining sciurids into the subfamily Sciurinae, but this has been strongly refuted by genetic studies.

Classification
Subfamily Sciurinae
 * Tribe Sciurini
 * Genus Microsciurus – American dwarf squirrels
 * Central American dwarf squirrel, M. alfari
 * Amazon dwarf squirrel, M. flaviventer
 * Western dwarf squirrel, M. mimulus
 * Santander dwarf squirrel, M. santanderensis
 * Genus Rheithrosciurus
 * Tufted ground squirrel, R. macrotis
 * Genus Sciurus
 * Subgenus Sciurus
 * Allen's squirrel, S. alleni
 * Arizona gray squirrel, S. arizonensis
 * Mexican gray squirrel, S. aureogaster
 * Eastern gray squirrel, S. carolinensis
 * Collie's squirrel, S. colliaei
 * Deppe's squirrel, S. deppei
 * Japanese squirrel, S. lis
 * Calabrian black squirrel, S. meridionalis
 * Mexican fox squirrel, S. nayaritensis
 * Fox squirrel, S. niger
 * Peters's squirrel, S. oculatus
 * Variegated squirrel, S. variegatoides
 * Eurasian red squirrel, S. vulgaris
 * Yucatan squirrel, S. yucatanensis
 * Subgenus Otosciurus
 * Abert's squirrel, S. aberti
 * Subgenus Guerlinguetus
 * Brazilian squirrel or Guianan squirrel, S. aestuans
 * Yellow-throated squirrel, S. gilvigularis
 * Red-tailed squirrel, S. granatensis
 * Bolivian squirrel, S. ignitus
 * Andean squirrel, S. pucheranii
 * Richmond's squirrel, S. richmondi
 * Sanborn's squirrel, S. sanborni
 * Guayaquil squirrel, S. stramineus
 * Subgenus Tenes
 * Persian squirrel, S. anomalus
 * Subgenus Hadrosciurus
 * Fiery squirrel, S. flammifer
 * Junín red squirrel, S. pyrrhinus
 * Subgenus Hesperosciurus
 * Western gray squirrel, S. griseus
 * Subgenus Urosciurus
 * Northern Amazon red squirrel, S. igniventris
 * Southern Amazon red squirrel, S. spadiceus
 * Genus Syntheosciurus
 * Bangs's mountain squirrel, S. brochus
 * Genus Tamiasciurus - pine squirrels
 * Douglas squirrel, T. douglasii
 * Southwestern red squirrel T. fremonti
 * American red squirrel, T. hudsonicus
 * Mearns's squirrel, T. mearnsi
 * Tribe Pteromyini – flying squirrels''
 * Subtribe Glaucomyina
 * Genus Eoglaucomys
 * Kashmir flying squirrel, E. fimbriatus
 * Genus Glaucomys – New World flying squirrels
 * Southern flying squirrel, G. volans
 * Northern flying squirrel, G. sabrinus
 * Humboldt's flying squirrel, G. oregonensis
 * Genus Hylopetes
 * Particolored flying squirrel, H. alboniger
 * Afghan flying squirrel, H. baberi
 * Bartel's flying squirrel, H. bartelsi
 * Gray-cheeked flying squirrel, H. lepidus
 * Palawan flying squirrel, H. nigripes
 * Indochinese flying squirrel, H. phayrei
 * Jentink's flying squirrel, H. platyurus
 * Sipora flying squirrel, H. sipora
 * Red-cheeked flying squirrel, H. spadiceus
 * Sumatran flying squirrel, H. winstoni
 * Genus Iomys
 * Javanese flying squirrel, I. horsfieldi
 * Mentawi flying squirrel, I. sipora
 * Genus Petaurillus – pygmy flying squirrels
 * Lesser pygmy flying squirrel, P. emiliae
 * Hose's pygmy flying squirrel, P. hosei
 * Selangor pygmy flying squirrel, P. kinlochii
 * Genus Petinomys
 * Basilan flying squirrel, P. crinitus
 * Travancore flying squirrel, P. fuscocapillus
 * Whiskered flying squirrel, P. genibarbis
 * Hagen's flying squirrel, P. hageni
 * Siberut flying squirrel, P. lugens
 * Mindanao flying squirrel, P. mindanensis
 * Arrow flying squirrel, P. sagitta
 * Temminck's flying squirrel, P. setosus
 * Vordermann's flying squirrel, P. vordermanni
 * Subtribe Pteromyina
 * Genus Aeretes
 * Groove-toothed flying squirrel, A. melanopterus
 * Genus Aeromys – large black flying squirrels
 * Black flying squirrel, A. tephromelas
 * Thomas's flying squirrel, A. thomasi
 * Genus Belomys
 * Hairy-footed flying squirrel, B. pearsonii
 * Genus Biswamoyopterus
 * Namdapha flying squirrel, B. biswasi
 * Laotian giant flying squirrel, B. laoensis
 * Mount Gaoligong flying squirrel, B. gaoligongensis
 * Genus Eupetaurus
 * Western woolly flying squirrel, Eupetaurus cinereus
 * Yunnan woolly flying squirrel, Eupetaurus nivamons
 * Tibetan woolly flying squirrel, Eupetaurus tibetensis
 * Genus Petaurista
 * Red and white giant flying squirrel, P. alborufus
 * Spotted giant flying squirrel, P. elegans
 * Hodgson's giant flying squirrel, P. magnificus
 * Bhutan giant flying squirrel, P. nobilis
 * Indian giant flying squirrel, P. philippensis
 * Chinese giant flying squirrel, P. xanthotis
 * Japanese giant flying squirrel, P. leucogenys
 * Red giant flying squirrel, P. petaurista
 * Genus Pteromys – Old World flying squirrel
 * Siberian flying squirrel, P. volans
 * Japanese dwarf flying squirrel, P. momonga
 * Genus Pteromyscus
 * Smoky flying squirrel, P. pulverulentus
 * Genus Trogopterus
 * Complex-toothed flying squirrel, T. xanthipes