The girdle of L. cinerea has diagnostic (in NW Europe) alternating brownish and whitish, transverse, lozenge-like bands of approximately equal size.
1: dark bands usually have narrow waist , and light bands usually have a bulging waist (or vice versa).
2: usually a dark central spot on pale bands.
3: thin paler greyish longitudinal line often runs across the waist of dark bands.
Markings can be partially developed, very indistinct (see 63 Tonicella marmorea COMPARISON Lepidochitona cinerea ) or absent on pale specimen.
Menai Strait, Wales. February 2011.

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