Keast’s tube-nosed fruit bat is represented by specimen records from Indonesia’s Tanimbar Islands. The female is described as paler than the male on the head and underside.
The dorsal coat is similar in both sexes, but the female is described as paler on the head, face, and underside than the male.
A 2012 environmental report’s literature summary says it roosts and forages in tall vegetation and gardens and eats fruit. The report also notes that little is known about the species.
An extinction-risk assessment has not been added yet.