It is found only in Papua New Guinea , and is only endemic to the islands , not the mainland .
St. Aignan 's trumpet - eared bat ( Kerivoula agnella ) is a species of vesper bat in the family Vespertilionidae .
trumpet - eared bat is found only in Papua New Guinea , and is only endemic to the islands , not the mainland .
St. Aignan 's trumpet - eared bat ( Kerivoula agnella ) is a species of vesper bat in the family Vespertilionidae .