Jones, A.M. & J.M. Baxter, 1987. Molluscs: Caudofoveata, Solenogastres, Polyplacophora and Scaphopoda. Synopses of the British fauna (NS), 37: 1-123. Seaward, D.R., 1990. Distribution of the marine molluscs of north west Europe. Nature Conservancy Council. |