The Indonesian tomb bat (Taphozous achates) is a species of sac-winged bat in the family Emballonuridae. It is found only in Indonesia.
The Indonesian tomb bat was described as a new species in 1915 by British mammalogist Oldfield Thomas. The holotype had been collected on the Indonesian island of Savu in 1896 by British naturalist Alfred Hart Everett.[1] The inspiration for the species name "achates" is the character of Achates from a Latin epic poem, The Aeneid. Oldfield Thomas frequently employed names from mythology and the Classics when naming new species of mammal.[2]
In many characteristics it is similar to the black-bearded tomb bat, though it can be differentiated by its conspicuously larger skull. Individuals have a forearm length of approximately .[1]