Snails, nudibranchs, whelks

Four-lined Polycera
Sea Swallow
Anemone Sea Slug
Crested Aeolis

Nudibranchs

21 species

Atlantic Triton Snail
Banded Dye-murex
Flat Periwinkle
European Painted Top Shell

Snails, sea slugs, whelks

27 species