06 Lacuna crassior. Shell height 3.1 mm. Menai Strait. August 2013.

06 Lacuna crassior. Shell height 3.1 mm. Menai Strait. August  2013.

H. 3.1 mm. Circular, interior of snout tip is yellowish. The anterior, wide third of the foot is a transverse ellipse. 1: operculum. 2: perisotracum protrudes beyond rim of aperture. 3: pinkish shell. 4: yellowish roof of mantle cavity.

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