Petinomys hageni (Jentink 1888)
[Petinomys] hageni (Jentink 1888), Notes Leyden Mus., 11: 26.
Type Locality: "Deli" [North East Sumatra, Indonesia].
Vernacular Names: Hagen's Flying Squirrel.
Synonyms: Petinomys ouwensi Sody 1949 .
Distribution: Borneo, Sumatra.
Conservation: IUCN – Lower Risk (lc).
Discussion: Formerly included lugens (Chasen, 1940:119); see comments therein. Medway (1977:112) considered the status of ouwensi doubtful.