Mollusca

Blue Rayed Limpet - Patella pellucida var. laevis

Blue Rayed Limpet - Patella pellucida var. pellucidum

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Curled Octopus - Eledone cirrhosa

Highland Dancer Sea Slug - 
Pleurobranchus membranaceus

Sea Lemon Sea Slug - Archidoris pseudoargus

Grey Sea Slug - Aeolidia papillosa

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Depilatory Sea Hare - Aplysia depilans

A short video of Aplysia depilans - select HD from the setting tab for greater resolution

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Transparent Lamellaria - Lamellaria perspicua - diverse colour forms