Roger S Key: Shining Ramshorn Snail Segmentina nitida Suffolk UK
Roger S Key: Sandbowl Snail Catinella arenaria - Braunton Burrows, Devon, UK
Roger S Key: Sandbowl Snail Catinella arenaria - Braunton Burrows, Devon, UK
Roger S Key: Des Moulin's Whorl Snail Vertigo moulinsiana, Kennet Valley, Berks, UK