Crustaceans

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Lobster Daunt Rock Ireland

Lobster at Daunt Rock

All crustaceans have an exoskeleton made of the protein chitin and calcium. This external shell, in addition to being protective, gives rigid support for the attachment of the muscles. The exoskeleton is made of separate plates connected by thin membranes. This segmented exoskeleton creates joints, allowing the crustacean to move its body and appendages. Crustaceans include crabs, lobsters, shrimps, barnacles and copepods

Crayfish

Crayfish

The crayfish is larger than the lobster, it has long antennae and are reddish in colour,  They lack large pincers but have small hook-like claws their body is covered in spines. They are found on open exposed rock faces and rocky seabed. While they...
Common Prawn - Palaemon serratus

Common Prawn - Palaemon serratus

The common prawn is a  small, almost transparent crustacean with red, blue and yellow markings. They often live in groups in rock crevices along the South Coast of Ireland. They move fairly quickly, using their legs to walk along the seafloor and t...
Lobster

Lobster

The clawed lobster Homarus gammarus  is a common sight to divers diving in Ireland. They are blue in colour, with large claws, eight walking legs and a long body ending in a series of tail plates. Lobsters are most commonly found in rocky seabeds  ...
Hermit Crab

Hermit Crab

Unlike true crabs, hermit crabs have soft, vulnerable abdomens. For protection from predators, many hermit crabs seek out abandoned shells, usually snail shells. When a hermit crab finds one of the proper size, it pulls itself inside, leaving several...