[6] The collector of the specimen was noted by the author, marine engineer and entomologist James John Walker, and the epithet walkeri proposed to commemorate his extensive field collections.

The wings are brown, the much darker shade of the membrane is intersected with paler skin over the bats arm and finger bones.

[10] They are also recorded in the eastern state of Queensland at Lawn Hill Gorge in the Boodjamulla National Park,[1] noisily occupying the Livingstonia palms while roosting.

[10] The habitat is rocky outcrops close to open or flowing water or in dense associated vegetation of Pandanus, Melaleuca, and Livistona woodlands or forest.

Pastoral and agricultural activities threaten the habitat of the species, changes in land use that reduce refuge and foraging opportunities by degradation of the vegetation.