25 Margarites helicinus album. COMPARISON image of pale Lacuna parva. H. 4 mm.

25 Margarites helicinus album. COMPARISON image of pale Lacuna parva. H. 4 mm.

Smooth, globose shell, not depressed. Whitish unbanded form. No iridescence. 1: umbilicus at end of a long groove/chink.

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