13 Patella ulyssiponensis. Length 39.6mm North Yorkshire. September 2014.

13 Patella ulyssiponensis. Length 39.6mm  North Yorkshire. September 2014.

Opaque, porcellaneous, interior layer just thick enough to conceal exterior colour bands except at very edge of aperture. Weakly defined amphora patch stained orange. Other interior features very indistinct.

OTHER SPECIES ALBUMS
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