58 Patella pellucida. Shell length 19.3mm. Late adult, Growth Stage 5 frond dweller (GS5f). March 2014. Menai Strait, Wales.

Some of the adults on fronds retain a dark chestnut band on the pedal-retractor muscle (see 57pp 57 Patella pellucida. Shell length 10.2mm. Early adult, Growth Stage 4 frond dweller (GS4f). March 2014. Littoral. West Anglesey, Wales. ), but this large, late adult frond dweller, GS5f, has lost it (1).
There is a lateral glandular streak (2) with an overhanging upper lip. The lip has lobe-like retractile tentacles (3) and is paler than the rest of the yellowish foot.

Concise
Part 1, SHELL FORMS: 02 Patella pellucida. Growth Stage 2 (GS2). July 2012. Littoral. North Yorkshire, England. © P. Lightfoot.
Part 2, BODY & ANATOMY: 03 Patella pellucida. Growth Stage 3 (GS3). 2009. Sublittoral, Farne Islands, Northumberland, England. © P.Lightfoot.
Part, 3 HABITS & ECOLOGY: 04 Patella pellucida. Length 4.6mm. Growth Stage 3 (GS3). September 2016. Yorkshire, England. © P.Lightfoot.

Imprint

Photographic guide to the identification and biology of European marine invertebrates

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