The thin tellin is a species which regularly washes ashore. You usually find both valves still attached to one another. The connecting ligament between the two shell halves is namely very strong. The thin tellin is reasonably easy to find on the sand thanks to its pink to orange color. This colorful shellfish usually lives hidden in the sea bottom, where it's difficult to find despite its color. For food and oxygen, it extends its siphons out of the sand and filters the water. The thin tellin closely resembles the Baltic tellin but is more delicate, flatter and lighter.