Leptomithrax gaimardii | |
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Source [1] | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Malacostraca |
Order: | Decapoda |
Suborder: | Pleocyemata |
Infraorder: | Brachyura |
Family: | Majidae |
Genus: | Leptomithrax |
Species: | L. gaimardii |
Binomial name | |
Leptomithrax gaimardii (H.Milne Edwards, 1834) | |
Synonyms [2] | |
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Leptomithrax gaimardii (common name - Great spider-crab) is a species of crab in the Majidae family, first described by Henri Milne-Edwards in 1834 as Paramithrax gaimardii, [3] [4] from a specimen (erroneously said to be) found in New Zealand waters [3] by Joseph Paul Gaimard who is honoured by the species epithet. [4]
It is found in coastal waters of Western Australia, South Australia, Victoria, New South Wales, and Tasmania. [3] [2]
This crab has a red-brown rounded carapace up to 16 cm (6.3 in) wide and has a leg span of up to 40 cm (16 in). [1] Sometimes seaweed and sponges attach to its body. [1]
When breeding these crabs form groups of often greater than 100 crabs, Breeding occurs just before winter moulting when they are vulnerable to predation because of their soft shells. The large congregations make them less vulnerable. [1] The crab is a scavenger, and is found in seaweed, reef and sand areas at depths of up to 820 m (2,690 ft). [1]
The Chinese mitten crab, also known as the Shanghai hairy crab, is a medium-sized burrowing crab that is named for its furry claws, which resemble mittens. It is native to rivers, estuaries and other coastal habitats of East Asia from Korea in the north to Fujian, China in the south. It has also been introduced to Europe and North America, where it is considered an invasive species. The species features on the list of invasive alien species of Union concern. This means that the import of the species and trade in the species is forbidden in the whole of the European Union.
The Northern Pacific seastar is an invasive species in Australia.
Coenobita perlatus is a species of terrestrial hermit crab. It is known as the strawberry hermit crab because of its reddish-orange colours. It is a widespread scavenger across the Indo-Pacific, and wild-caught specimens are traded to hobby aquarists.
Majidae is a family of crabs, comprising around 200 marine species inside 52 genera, with a carapace that is longer than it is broad, and which forms a point at the front. The legs can be very long in some species, leading to the name "spider crab". The exoskeleton is covered with bristles to which the crab attaches algae and other items to act as camouflage.
Hemigrapsus crenulatus, the hairy-handed crab or papaka huruhuru, is a marine crab of the family Varunidae, endemic to the New Zealand coast, although a taxon in Chile may be conspecific. It is an intertidal species with semi-terrestrial tendencies. They are named by their characteristic setae, or patches of thick hair, on the chelipeds and legs. They can range from green to brown in coloration. Adult crabs are generally 2–4 cm (0.8–1.6 in) wide at the carapace, although the smallest mature crabs can be around just 1 cm (0.4 in) wide. and are able to survive and reproduce in environments of widely varying salinities.
Charybdis is a genus of swimming crabs in the family Portunidae. It is named after the monster Charybdis of Greek mythology.
The black-faced cormorant, also known as the black-faced shag, is a medium-sized member of the cormorant family. Upperparts, including facial skin and bill, are black, with white underparts. It is endemic to coastal regions of southern Australia.
Notomithrax ursus, known as the hairy seaweed crab, is a spider crab of the family Majidae.
Decorator crabs are crabs of several different species, belonging to the superfamily Majoidea, that use materials from their environment to hide from, or ward off, predators. They decorate themselves by sticking mostly sedentary animals and plants to their bodies as camouflage, or if the attached organisms are noxious, to ward off predators through aposematism.
The Panopeidae are a family containing 26 genera of morphologically similar crabs, often known as "mud crabs". Their centers of diversity are the Atlantic Ocean and eastern Pacific Ocean.
Libinia dubia, the longnose spider crab, is a species of crab in the family Epialtidae. It is found in shallow waters on the eastern coast of North America.
The Great Southern Reef is a system of interconnected reefs that spans the southern coast of continental Australia and Tasmania and extends as far north as Brisbane to the east and Kalbarri to the west. It covers 71,000 km2 (27,000 sq mi) of ocean and straddles five states, running along the coast for 8,000 km (5,000 mi).
Taliepus is a genus of kelp and spider crabs in the family Epialtidae. There are at least three described species in the genus Taliepus.
Leptomithrax is a genus of crabs in the family Majidae, first described by Edward J. Miers in 1876. They have been on Earth for 37.2 million years.
Dardanus deformis is a species of nocturnal hermit crab that is found in the Indo-Pacific. Its common name is pale anemone hermit. The species is known to transfer sea anemones from one shell to another when it moves to a different shell. It can be kept in an aquarium.
Libinia spinosa is a majoid crab found in mud and sand bottoms of the Southwestern Atlantic and Pacific oceans. It is a generalist feeder on organisms such as algae, sponges, cnidarians, mollusks, polychaetes, crustaceans, and small fish. It commonly engages in a symbiotic relationship with the medusa Lychnorhiza lucerna.
Australoplax tridentata, commonly known as the furry-clawed crab or tuxedo shore crab is a species of crab in the family Macrophthalmidae that is found in Queensland, New South Wales and the Northern Territory.
Paragrapsus is a genus of crabs from South Eastern Australia, containing the following species:
Paragrapsus laevis is a species of crab found in south eastern Australia, from southern Queensland to around the South Australian border, including Tasmania.