Showing posts with label rotund disk. Show all posts
Showing posts with label rotund disk. Show all posts

Sunday, 3 March 2013

Rotund disk snails

In a walk to my local cemetery I found this group of disk snails, Discus rotundatus, under a decaying branch. They are small snails up to 7 mm in diameter, with a lovely ribbed shell with reddish banding. It feeds on algae, fungi and decaying vegetation in damp and shady places and shelters in groups under bricks, rocks, logs and at the base of tree trunks in dry weather.