Crab Islands
Crabs are Decapoda, decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting "tail" (abdomen#Other animals, abdomen) ( el, :wikt:βραχύς, βραχύς , translit=brachys = short, / = tail), usually hidden entirely under the thorax. They live in all the world's oceans, in Freshwater crab, freshwater, and on Terrestrial crab, land, are generally covered with a thick exoskeleton, and have a single pair of pincers. They first appeared during the Jurassic Period. Description Crabs are generally covered with a thick exoskeleton, composed primarily of highly mineralized chitin, and armed with a pair of chela (organ), chelae (claws). Crabs vary in size from the pea crab, a few millimeters wide, to the Japanese spider crab, with a leg span up to . Several other groups of crustaceans with similar appearances – such as king crabs and porcelain crabs – are not true crabs, but have evolved features similar to true crabs through a process known ...
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Liocarcinus Vernalis
''Liocarcinus vernalis'', the grey swimming crab, is a small, shallow-water crab in the family Portunidae. ''L. vernalis'' was thought for a long time to be a predominantly Mediterranean species, but its known range was extended by a series of observations in the 1980s and 1990s. It ranges from West Africa to the southern North Sea The North Sea lies between Great Britain, Norway, Denmark, Germany, the Netherlands and Belgium. An epeiric sea on the European continental shelf, it connects to the Atlantic Ocean through the English Channel in the south and the Norwegian S .... References Portunoidea Crustaceans of the Atlantic Ocean Crustaceans described in 1816 {{Crab-stub ...
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