The greater monkey-faced bat, (Pteralopex flanneryi) is a megabat endemic to Solomon Islands, Bougainville, in Papua New Guinea, and nearby small islands. It is listed as a critically endangered species and the population is decreasing. It is the largest monkey-faced bat."Traditionally, a single species of Pteralopex was thought to occur in the Greater Bukida Islands, Pteralopex anceps, but there are actually two species here. P. anceps is a yellow-bellied, species that, unlike P.