High levels of morphological variation within the species indicates that it is a composite of a number of distinct forms.

Two other specimens were examined, Thomas reporting their locations as Melville Island and Port Essington.

[6] Similar in habit and appearance to the species Nyctophilus bifax, to which it was earlier placed as a subspecies, but distinguished for a preference to wetter forest environments.

The forearm (tibia) measurement is 37 to 46 millimetres in length, and their weight ranges from 7 to 13 grams.

[6] The species is found in the Top End, and at the Kimberley and Pilbara regions in the north west of the continent.