Top 9 Biggest Crab In Australia (With Pictures)
1. Tasmanian giant crab

It is believed that the Tasmanian gigantic crab is considered one of the enormous crabs on the planet. This Tasmanian giant crab is found on muddy bottoms and rocks within Southern Australia’s waters.
This crab is mostly yellow-whitish below and read over. They feed on carrion and slow-moving species like starfish, crustaceans, and gastropods. It’s most abundant between 110-180 meters and 17.6 kg with a length of up to 46cm (18 inches).).
2. The largest mud crab

Scylla Serrata (often is referred to as mangrove crab or mud crab, though both terms are highly ambiguous) and the black crab. Mud Crab is typically highly dark brown to mixed green.
Other food items include fish, debris, sand, mud, and other things. They can reach 300 millimetres wide in their shells or 2.5 kilograms. Giant mud crabs can be located in protected waters, especially estuaries, tidal flats, and mangrove habitats.
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3. Coconut Crab

Coconut crab (Birgus later) is an invasive species of terrestrial hermit crabs. They are often referred to as palm thieves. They are found on islands in the waters off Africa close to Zanzibar up to the Gambier Islands, in the Eastern Pacific Ocean. An adult’s colour ranges from light purple to dark brown and purple.
Coconut crabs eat fallen fruit, nuts, and seeds. Adult coconut crabs measure about 1 meter from the tip of their legs to the leg tip and weigh around 4.5 kilograms. Coconut crabs are solitary species that live in caves or rock crevices dependent on the area’s terrain.
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4. Red King Crab

Red king crab is sometimes called Kamchatka crab and Alaskan King crab. The colour ranges in brownish-bluish red and is covered with sharp spines. The red King crab is an omnivore species that feeds on nearly everything, including worms, clams, barnacles, mussels, sea stars, fish, sand dollars, and brittle stars.
They can grow to 5-6 feet and weigh a total of 12.7 k. Red king crabs can be located in the Bering Sea and the Aleutian Islands.
5. Brown Crab

Cancer Pagurus, also known as the brown crab or the edible crab. It is a type of crab. They can be located within the North Sea, North Atlantic Ocean and sometimes, within some instances, in the Mediterranean Sea.
It is a tough crab that is reddish-brown with an oval carapace with a distinctive “pie crust” edge and black tips on the claws. Brown crabs are a popular choice for food, and Brown crab’s diet includes many crustaceans and Molluscs.
Adults are about 20cm tall and weigh upwards of 3kg (6.6lb). They are found in areas of rocky ground, especially under boulders, mixed coarse soil, and the sand offshore that is muddy.
6. Dungeness Crab

Dungeness crabs live in seafloors with sandy bottoms and muddy bottoms, as well as in the eelgrass bed by California Sea Grant. Dungeness crabs have an oval-shaped carapace, which is yellow-brown to the purplish.
They are carnivores, and their diet could include mussels, shrimp, tiny crabs, clams and worms. Dungeness crabs range between 7-9 inches and weigh between 1.5 to 3 pounds. Dungeness crabs are abundant along the Pacific coast, particularly in sandy bottoms below the tide mark.
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7. Opilio Crab

Chionoecetes opilio is a snow crab, sometimes referred to as opilio or Opies. They are iridescent and vary in lighter red and brown shades at the top and from white to yellow at the bottom. Snow crabs eat virtually everything they catch and break it open using their claws, including crabs, fish, shrimp and worms, clams, snails, brittle stars, and more.
Males can grow to 16.5 centimetres (6.5 inches) in carapace size Females can increase up to 9.5 centimetres, and Opilio crabs can weigh an average of 1 to 3 pounds.
8. Blue Crab

Also known as Chesapeake blue crab or Atlantic blue crab, They are strong swimmers. The claws of blue crabs are vivid blue, and mature females have the red tips of their feet. They consume clams, mussels, oysters, smaller crustaceans, freshly dead fish, plants, and animal waste.
Blue crabs can grow to approximately 9 inches in length and weigh between 5.26 to 7.36 grams. The habitat of blue crabs can be found in oyster reefs and underwater grasses. They are found in a variety of habitats, from shallow to shallow.
9. Florida Stone Crab

The Florida stone crab found in the western part of the North Atlantic is sometimes referred to by the name “The stone crab”. They’re brownish red with grey-coloured spots and a brown underside with massive and different-sized chelae.
Florida stone crabs feed on oysters, as well as other smaller molluscs and polychaete worms, as well as other crustaceans. The most significant male claws measure around 140 millimetres. Stone crabs like the bottoms of oyster reefs, bays and rock jetties, where they can burrow or take shelter from predators.
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