White-lipped Ramshorn

Height 1.5 mm. Width: 5 to 7 mm. A small air-breathing freshwater snail. The shell is slightly glossy and rather thick, with close transverse striae, and is of a light horn colour. It has 6 to 6.5 rounded whorls which are evenly arranged in one plane, although the spire may be depressed and the lower surface rather concave. The periphery is generally only slightly shouldered above. There is sometimes a white rib around the inside of the mouth aperture, which is rounded, not oval. It is commonly found in streams, ponds and ditches which dry out in summer, and in marshes. Common and widespread throughout Britain but less common further north. No additional images available for this species.