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British Invertebrates - marine

Species 1 - 2 of 2
Thumbnail for Fan mussel (Atrina fragilis)
Fan mussel (Atrina fragilis)
Growing to an impressive 48 cm in length, the fan mussel (Atrina fragilis) is one of the largest of the bivalve molluscs found...  More 10 Images1 Video
Thumbnail for Flat periwinkle (Littorina obtusata)
Flat periwinkle (Littorina obtusata)
Periwinkles are a large family of gastropod molluscs found on the shore. The flat periwinkle is so-called because the spire of the...  More 5 Images1 Video