Hair structure of Chalinolobus tuberculatus (Forster) is distinct from that of C. gouldii Gray; in some respects it agrees with the generalized vespertilionid structure but differs in the lack of separate overhair and underhair. In Mystacina tuberculata Gray, both hair types are present; overall structure is clearly different from that of the Molossidae but corresponds closely to that of the Noctilionidae and Nycteridae.