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Palicus Gracilis
''Palicus gracilis'' is a species of stilt crab. It inhabits the floor of the eastern Atlantic Ocean. Description The shell and margins are convex. Anterolaterals are oblique, with a wide orbital margin. ''P. gracilis'' has two pairs of anterolateral teeth, with the outer pair being shorter that the teeth of the inner pair. There is a shallow suture between the outer and the inner pair of anterolaterals. The second pair of ambulatory legs is almost 3.5 times longer than the width of the carapace. The suborbital margin is triangular. The carpi are cylindrical, not flattened or angled. Maximum carapace width is 16 mm and length is 10.6 mm. Distribution It has been found in dredges of the ocean floor from MassachusettsSmith, S.I. 1883. Preliminary report on the Brachyura and Anomura dredged in deep water off the south coast of New England by the United States Fish Commission in 1889,1881, and 1882. Proc. U. S. Nat. Mus., 6 (1/2): 1-57 to the Caribbean coast of Colombia, as wel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Massachusetts
Massachusetts (Massachusett language, Massachusett: ''Muhsachuweesut [Massachusett writing systems, məhswatʃəwiːsət],'' English: , ), officially the Commonwealth of Massachusetts, is the most populous U.S. state, state in the New England region of the Northeastern United States. It borders on the Atlantic Ocean and Gulf of Maine to the east, Connecticut and Rhode Island to the south, New Hampshire and Vermont to the north, and New York (state), New York to the west. The state's capital and List of municipalities in Massachusetts, most populous city, as well as its cultural and financial center, is Boston. Massachusetts is also home to the urban area, urban core of Greater Boston, the largest metropolitan area in New England and a region profoundly influential upon American History of the United States, history, academia, and the Economy of the United States, research economy. Originally dependent on agriculture, fishing, and trade. Massachusetts was transformed into a manuf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crabs Of The Atlantic Ocean
Crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting "tail" (abdomen) ( el, βραχύς , translit=brachys = short, / = tail), 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. 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 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 as carcinisation. Environment Crabs are found in all of the world's oceans, as well as in fresh wate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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