Bougainville Monkey-faced Bat

It is the largest member of its genus, Pteralopex. Their forearms are 141–160 millimetres (5.6–6.3 in) long. They can be identified by their short ears, mostly obscured by their fur. They have black fur on their heads and backs. Their chests have a white or yellow patch. The fur is long, with individual hairs approximately 20 mm (0.79 in) Unlike the Guadalcanal monkey-faced bat, the tibia is fully furred. They have a robust skull morphology, with thick zygomatic arches and high sagittal crests. Their dental formula of 2.1.3.22.1.3.3. It is thought that their eyes are red or orange in color like other members of their genus. They lack tails. Males and females are similar in body size.

The majority of museum specimens were collected from cloud forests at 1,100 metres (3,600 ft) or higher above sea level. It is not thought to occur in coastal forests. It had not been seen on Bougainville Island since 1968, until they were again sighted in 2016. It was last seen on Choiseul Island in 2008.