Leach's single leaf bat has a long muzzle and tongue. It roosts deep inside large, humid caves.
Its fur ranges from brown to gray. The muzzle is elongated, and its long tongue bears papillae.
It roosts in the deep parts of large, humid caves. Females are reported to produce one young per breeding season.
Firm feeding data are lacking; soft fruit or nectar, and possibly insects, are suggested as foods.
An extinction-risk assessment has not been added yet.