Buka Island
Although this oceanic island ecoregion contains only forty-seven mammal species, twenty-six of those species are endemic or near endemic, including nine murid rodents (Melomys, Solomys, Uromys), fifteen pteropodid bats (Dobsonia, Melonycteris, Nyctimene, Pteralopex, Pteropus), one molossid bat ("Chaerephon") and the Flower-faced bat ("Anthops ornatus"). Three of the fruit bats, Bougainville monkey-faced bat ("Pteralopex anceps"), Guadalcanal monkey-faced bat ("Pteralopex atrata") and Montane monkey-faced bat ("Pteralopex pulchra"), are critically endangered, and three of the rodents are endangered, Buka Island mosaic-tailed rat or Buka Island melomys ("Melomys spechti"), Poncelet's giant rat or Poncelet's naked-tailed rat ("Solomys ponceleti"), and emperor rat ("Uromys imperator") that is endemic to Guadalcanal.