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Common Prawn

Palaemon serratus

Common Prawn
Photo by John Hepburn · CC BY

About

The common prawn is one of the easiest shrimp to spot along rocky shores, its almost see-through body giving away little until it darts for cover in a crevice.

Length
11 cm
Depth
up to 40 m

How to tell it apart

Many shrimp species share this pinkish colouring. Look closely at the tip of the upward-curving rostrum: on the common prawn it splits into two points, unlike the plain tip of most similar shrimp.

Appearance

This shrimp has a translucent, pinkish-brown body with reddish speckled patterns and grows up to 11cm long. A long spike called a rostrum projects forward from between its eyes and curves upward, ending in a small forked tip.

Habitat

It lives in groups in rocky crevices in shallow water down to about 40m, across the Atlantic coast from Denmark to Mauritania, and in the Mediterranean and Black Seas.

Did you know?

Some individuals carry a visible bulge in the shell over their gills. It is caused by a parasitic isopod, a small crustacean called Bopyrus squillarum, living inside them.

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