Brooks's dyak fruit bat

Brooks's dyak fruit bat (Dyacopterus brooksi) is a megabat of the family Pteropodidae that is endemic to Sumatra. The British mammalogist Oldfield Thomas described it as a new species in 1920 and named it for Cecil Joslin Brooks, who collected the type specimen near the village of Lebong Tandai. It was long treated as a synonym or subspecies of the dayak fruit bat, but a 2007 principal component analysis of skull and body dimensions showed that the two cluster separately. It has a forearm of 81 to 83 millimetres, grayish brown fur on the back, silvery gray fur on the belly and 28 teeth. The Wikipedia list of pteropodids gives its IUCN status as vulnerable, with a declining population.