Scientific name:

Psammechinus miliaris

About:

A small, round sea-urchin with strong, short spines. Greenish in colour, with purple tips to the spines. Lives amongst seaweed and rocks, grazing on sponges, seaweed and other algae, and also eats young shellfish.

How to identify:

<p>There are several similar sized sea urchins found in British waters. Told by its slightly flattened shape, greenish colour and purple-tipped spines</p>

Where:

Found on rocks shores all round our coasts, much more common in the north of the UK

Fantastic facts:

May live up to 10 years old