The Bering Sea is a marginal sea of the Northern Pacific Ocean. It forms, along with the Bering Strait, the divide between the two largest landmasses on Earth: Eurasia and the Americas. It comprises a deep water basin, which then rises through a narrow slope into the shallower water above the continental shelves. The Bering Sea is named after Vitus Bering, a Danish navigator in Russian service, who, in 1728, was the first European to systematically explore it, sailing from the Pacific Ocean northward to the Arctic Ocean.
Crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting "tail" (abdomen), usually hidden entirely under the thorax. They live in all the world's oceans, in freshwater, and on land, are generally covered with a thick exoskeleton, and have a single pair of pincers on each arm. They first appeared during the Jurassic Period.
King crabs are a taxon of decapod crustaceans that are chiefly found in cold seas. Because of their large size and the taste of their meat, many species are widely caught and sold as food with the most common being the red king crab.
The Parnaíba River is a river in Brazil, which forms the border between the states of Maranhão and Piauí. Its main course is 1,400 km (870 mi) long and the Parnaíba River Basin covers 330,000 km2 (130,000 sq mi). The Parnaíba River rises in the Chapada das Mangabeiras range, and flows northeastward to empty into the Atlantic Ocean, being the longest river entirely located within Brazil's Northeast Region. The middle and upper regions of this river are separated by the Portuguese: Boa Esperança Hydroelectric Power Plant dam, but is otherwise navigable.
Leucosioidea is a superfamily of crabs containing the two families Leucosiidae and Iphiculidae.
Orithyia sinica, sometimes called tiger crab or the tiger face crab, is a "singularly unusual" species of crab, whose characteristics warrant its separation into a separate genus, family and even superfamily, having previously been included in the Dorippoidea or Leucosioidea. Its larvae, for instance, are unlike those of any other crab.
Several species of crabs share the name pebble crab:
Leucosiidae is a family of crabs containing three subfamilies and a number of genera incertae sedis:
Leucisca is a genus of crabs in the family Leucosiidae. The genus is endemic to South Africa.
Around 65 species of crab occur in the waters of the British Isles. All are marine, with the exception of the introduced Chinese mitten crab, Eriocheir sinensis, which occurs in fresh and brackish water. They range in size from the deep-water species Paromola cuvieri, which can reach a claw span of 1.2 metres, to the pea crab, which is only 4 mm (0.16 in) wide and lives inside mussel shells.
Leucosia anatum, also known as the pebble crab, is a species of crab in the family Leucosiidae.
Ebalia tumefacta, sometimes called Bryer's nut crab, is a species of crab in the family Leucosiidae.
Myra fugax is a species of crabs in the family Leucosiidae.
Coleusia is a genus of Indo-Pacific pebble crabs of the family Leucosiidae. The six species currently recognised were formerly classed as members of the genus Leucosia but were separated into Coleusia in 2006 based on the fusing of segments 3-5 on the abdomens of the males and the three times axial coiling of the shaft of the first pleopod which bears a tufted lobe on its distal portion and has an elongated apical process.
Ixa monodi, the Red Sea pebble crab is a species of pebble crab from the family Leucosiidae which prefers to burrow in sandy, shallow coastal waters. It was first described from the eastern Mediterranean where it is an invasive species having colonised the coasts of the Levantine Sea from the Red Sea by Lessepsian migration from the Red Sea via the Suez Canal.
Persephona mediterranea, the mottled purse crab, is a species of true crab in the family Leucosiidae. It is found in the western Atlantic Ocean.
Persephona is a genus of true crabs in the family Leucosiidae. There are about 5 described species in Persephona.
Randallia ornata, known generally as the globose sand crab or purple globe crab, is a species of true crab in the family Leucosiidae. It is found in the East Pacific.
Randallia is a genus of true crabs in the family Leucosiidae. There are about 17 described species in Randallia.
Coleusia janani is a newly discovered species of pebble crabs found off the coast of Qatar in 2017. Its shell is of bright orange and lite grey color with small white centres and lined by thin red outer rings.
