Abstract
Lepidapedon cambrensis from the large intestine of Onos mustelas from the inter-tidal zone at Membles Head, Swansea, is described and compared with other spp. in the genus. A brief historical review of the genus Lepidapedon Stafford, 1904 is given, including a key for all known valid spp. in the genus. L. microcotyledon Dollfus is suppressed as a synonym of L. gadi (Yamaguti).