Gastropods sampled on Accra Beach, on the Island of Barbados, Caribbean Sea, North Atlantic Ocean: Nerita fulgurans (a–c, g–h), Nerita peloronta (d–f, i–j), Nerita versicolor (n–p, s–t), Nerita tessellata (k–m, q–r), Echinolittorina angustior (u–v), Echinolittorina ziczac (x–w) and Echinolittorina tuberculata (y–z), Plicopurpura patula (a’–e’). Scale bars: 3 mm (a–f; k–p; u–v; y–z), 2 mm (x–w), 7 mm (a’–e’).