The Mount Missim long-eared bat (Nyctophilus shirleyae) is a species of vesper bat found in Papua New Guinea.
The Mount Missim long-eared bat was described as a new species by H. Parnaby in 2009. The holotype had been collected in 1988 on Mount Missim by H. Parnaby. The eponym for the species name "shirleyae" was H. Parnaby's mother, Shirley Jean Parnaby. H. Parnaby wrote that she was "a great admirer of the people of the Papua New Guinea nation and its biodiversity," in addition to a supporter of his childhood interest in mammals.[1]
Its forearm length is approximately . Individuals weigh .[1]
It is endemic to Papua New Guinea. It has been documented at elevations between above sea level.
As of 2020, it is assessed as a data deficient species by the IUCN.