Echinolittorina tuberculata - <i><a href="https://en.wikipedia.org/wiki/Echinolittorina_tuberculata" class="extiw" title="en:Echinolittorina tuberculata">Echinolittorina tuberculata</a></i> <small>(Menke, 1828)</small>, Common Prickly Periwinkle; Height 1.3 cm; Originating from <a href="https://en.wikipedia.org/wiki/Sint_Maarten" class="extiw" title="en:Sint Maarten">Sint Maarten</a>, <a href="https://en.wikipedia.org/wiki/Caribbean_Sea" class="extiw" title="en:Caribbean Sea">Caribbean Sea</a>; Shell of own collection, therefore not geocoded. © H. Zell - CC BY-SA 3.0 - Wikimedia Commons
Saint-Martin