20 Lacuna parva COMPARE Lacuna pallidula

20 Lacuna parva COMPARE Lacuna pallidula

L. pallidula: shells olive-brown, no spiral bands.
Right: female 9.5 mm high (1). Spire much smaller than body whorl.
‘D’ shape aperture occupies about 70% of area. Columellar groove, “chink”, leading to umbilicus (2). Dorset, England, April 2016.
Left: Body white, no grey stipple. Shell height 7.5 mm, West Anglesey, Wales, March 2014.

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