Ridley's leaf-nosed bat, Ridley's roundleaf bat, or Singapore roundleaf horseshoe bat (Hipposideros ridleyi) is a species of bat in the family Hipposideridae. It is found in Brunei, Malaysia and Singapore. Its natural habitat is subtropical or tropical swamps. It is threatened by habitat loss.
Ridley's leaf-nosed bat has a forearm length of 47–51 mm (1.9–2.0 in). Its nose-leaf is very large and dark, covering its muzzle. The nose-leaf lacks lateral leaflets (smaller projections to the side).[3]