[4] This specimen, an adult male, was obtained from the roof of the Customs House (altitude 5 metres asl) by N.L.

[6] The brown of the dorsal side becomes blackish in parts and is tinged with red, the colour of the skin is also very dark.

The face is typically unadorned, lacking distinguishing features, and they superficially resemble many of the species of the genus.

[5] The penis morphology and reddish colour of the fur distinguish Vespadelus finlaysoni from similar species.

[7] Vespadelus finlaysoni form colonies that occupy caves or cavities with rocky terrain, and will take residence in abandoned mining operations.

They occur inland from the coast in the west, across the arid interior to tropical grasslands at Cape York Peninsula.