Share

Thin tellin

Thin tellin ©Emily Baxter

Thin tellin

Their empty, delicate pink or yellow shells can often be found washed up on beaches, but the animals themselves live buried in the sand all around the coasts of the UK.

Scientific name

Macomangulus tenuis

When to see

January to December

Species information

Category

Statistics

Length: 2-3cm
Common

About

A small clam-like shell, the thin tellin is oval, smooth and delicate. It is found in fine sand from the middle of the shore and on the seabed in shallow coastal waters, where it buries itself up to 12 cm deep. At the low tide mark, huge densities of thin tellins can be found hidden in the sand - up to 3000 per square meter! It is a filter feeder, extracting organic matter from the water using its long siphon which it extends to the surface of the sand.

How to identify

An easily recognised seashell, the thin tellin is very pretty, coming in various shades of pink and yellow. The shell is roughly triangular with a long rounded edge and obvious growth bands.

Distribution

Found on sandy shores all round our coasts.

Did you know?

Sometimes the siphon tip gets nibbled off by a hungry flatfish, but the thin tellin can simply regrow a new one!