Blue Rayed Limpet

This tiny and beautiful limpet feeds on the blades and stip of kelp (Laminaria species) on the lower shore of rocky shores.

Measuring 0.5 - 1.5 cm long, they are transparent in their first year with 3 irridescent blue lines running aross the lenth of the shell.  The adult stage has a darker shell and the blue 'rays' are still visible.  On kelp, the limpets feed using their radula - a tongue covered in teeth - to rasp and graze the seaweed, leaving small depressions.   The limpets are lost in the autumn when the seaweed sheds its fronds.

Click here for Polycera sp

back to top

Copyright Lundy MCZ 2019