Exceptionally large specimen of Littorina littorea. Height 50.3mm, breadth 31.2mm. Usual maximum height 30mm. Due to age, shell has coloured surface layer worn away and is mined by boring sponge, Clione celata. Orkney, April 1974.
Exceptionally large specimen of Littorina littorea. Height 50.3mm, breadth 31.2mm. Usual maximum height 30mm. Due to age, shell has coloured surface layer worn away and is mined by boring sponge, Clione celata. Orkney, April 1974.
Exceptionally large specimen of Littorina littorea. Height 50.3mm, breadth 31.2mm. Usual maximum height 30mm. Due to age, shell has coloured surface layer worn away and is mined by boring sponge, Clione celata. Orkney, April 1974.
