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An order of sessile-eyed malacostracan crustaceans, with feet directed partly forwards and partly backwards. This is a shore-jumper.

Amphipoda

An order of sessile-eyed malacostracan crustaceans, with feet directed partly forwards and partly backwards.…

An order of sessile-eyed malacostracan crustaceans, with feet directed partly forwards and partly backwards. This is a portion showing the respiratory organs a a a.

Amphipoda

An order of sessile-eyed malacostracan crustaceans, with feet directed partly forwards and partly backwards.…

An illustration of a crap carrying a mass of eggs beneath its abdomen.

Crab

An illustration of a crap carrying a mass of eggs beneath its abdomen.

Hermit crabs are decapod crustaceans of the superfamily Paguroidea. They are not closely related to true crabs. Hermit crabs are quite commonly seen in the intertidal zone, for example in tide pools. Most species of hermit crabs have long soft abdomens which are protected from predators by the adaptation of carrying around a salvaged empty seashell, into which the whole crab's body can retract. Most frequently hermit crabs utilize the shells of sea snails, marine gastropod mollusks. The tip of the hermit crab's abdomen is adapted to clasp strongly onto the columella of the snail shell. As the hermit crab grows in size, it has to find a larger shell and abandon the previous one.

Hermit Crab

Hermit crabs are decapod crustaceans of the superfamily Paguroidea. They are not closely related to…

Carcinus maenas is a common littoral crab, and an important invasive species. It is listed among the 100 "world's worst invasive types of invasive species". C. maenas is known by different names around the world. In the British Isles, it is generally referred to simply as the shore crab. In North America and South Africa, it bears the name green crab or European green crab. In Australia and New Zealand, it is referred to as either the European green crab or European shore crab.

Shore Crab

Carcinus maenas is a common littoral crab, and an important invasive species. It is listed among the…

Types of the Lower Crustacea. 1, Balanus; 2, Cytherea lutea; 3, Dapania pulex; 4, Lepus anatifera; 5, Artemia salina; 6, Nebalia bipes; 7, Apocudes speciosus; 8, Orchestia selkirki; 9, Gribble; 10, Woodlouse; 11, Cyclaspis pusilla; 12, Squilla nautis; 13, Mysis relicta; 14, Hermit crab. 1, 4, 12 and 14 reduced to one-half; 2, 3 and 5 are magnified.

Crustacea

Types of the Lower Crustacea. 1, Balanus; 2, Cytherea lutea; 3, Dapania pulex; 4, Lepus anatifera; 5,…

Copepoda, an order of crustaceans. e, Calligus Mulleri, or horseshoe crab.

Crustacean

Copepoda, an order of crustaceans. e, Calligus Mulleri, or horseshoe crab.

This hermit crab (Eupagurus bernhardus) is in the shell of the northern moon snail (Lunatia heros).

Hermit Crab

This hermit crab (Eupagurus bernhardus) is in the shell of the northern moon snail (Lunatia heros).

An illustration of a lobster fossil.

Lobster Fossil

An illustration of a lobster fossil.

A small crustacean, allied to the shrimp; it is highly prized for food.

Prawn

A small crustacean, allied to the shrimp; it is highly prized for food.

Water fleas are microscopic crustaceans, otherwise known as Daphnia.

Water Flea

Water fleas are microscopic crustaceans, otherwise known as Daphnia.

Water fleas are microscopic crustaceans, otherwise known as Daphnia.

Water Flea

Water fleas are microscopic crustaceans, otherwise known as Daphnia.

Water fleas are microscopic crustaceans, otherwise known as Daphnia.

Water Flea

Water fleas are microscopic crustaceans, otherwise known as Daphnia.