On cover: Department of Zoology, National Museum of Wales Amgueddfa Genedlaethol Cymru: 1997.
Cover title.
The status of the freshwater pearl mussel, Margaritifera margritifera (L., 1758), in North-west Wales by Ian J. Killeen. Published by Countryside Council for Wales in 1997. Publication and catalogue information, links to buy online and reader comments.