Animal Species:Red Rock Crab

The Red Rock Crab is not only one of the most common crabs in Sydney but also one of the fastest movers. It is often used as bait, particularly to catch grouper.

Smooth Rock Crab sitting on sponge and algae

Dr Isobel Bennett © Australian Museum

Standard Common Name

Red Rock Crab

Alternative Name/s

Red Bait Crab

Identification

The Red Rock Crab is easily recognised by its large size and red colour.

Size range

10 cm

Distribution

The Red Rock Crab is found in temperate waters of southern Australia, in New South Wales, Victoria, South Australia, Western Australia and Tasmania. Also found in New Zealand, South Africa and Chile.

Habitat

Preferring moist environments, the Red Rock Crab is found around the low-tide mark on the rocky shore and underwater to depths of about 8 m. It tends to hide among seaweed and under rock ledges.

Feeding and Diet

The Red Rock Crab feeds on sponges, bryzoans and small seaweeds.

Classification

Species:
chabrus
Genus:
Plagusia
Family:
Plagusiidae
Infraorder:
Brachyura
Suborder:
Pleocyemata
Order:
Decapoda
Superorder:
Eucarida
Class:
Malacostraca
Subphylum:
Crustacea
Phylum:
Arthopoda
Kingdom:
Animalia

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Tags crabs, crustaceans, arthropods, invertebrates, identification, wildlife of sydney,