05 Lacuna parva

05 Lacuna parva

Smooth surface; no obvious sculpture apart from numerous, very fine, prosocline growth lines.
Bands 1, 2 and 3. Band 2 is often the widest. Band 1 is easily overlooked.
Chalky white protoconch on apex (4).
Shell heights 3 mm & 3.5 mm. Menai Strait. August 2013.

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