Dusky flying fox Dusky flying fox The dusky flying fox ("Pteropus brunneus"), also known as the Percy Island flying fox, is an extinct species of flying fox in the family Pteropodidae. It was endemic to Percy Island off the southeast coast of Mackay, Queensland, in the northeast corner of Australia. Only one specimen is known to exist. It was documented in 1859 and collected by Dobson in 1878. Since that record, no further documentation is known of this species. Currently, the specimen is located at the British Museum of Natural History, and was validated as a separate species in the late 20th century.
Andersen's flying fox was described as a new species in 1908 by Danish mammalogist Knud Andersen. The holotype had been collected by William Ruxton Davison and presented to Andersen by Allan Octavian Hume. There is taxonomic uncertainty regarding this species: some have published that it is likely synonymous with the Indian flying fox while other have published that it is synonymous with the large flying fox. Its species name ""intermedius"" is Latin for "intermediate;" Andersen may have chosen that name because he compared it to both the Indian flying fox and the large flying fox. Andersen wrote that it was "scarcely distinguishable" from