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Gennadas Kempi
''Gennadas'' is a genus of shrimps in the family Benthesicymidae Benthesicymidae is a family of shrimps in the suborder Dendrobranchiata. References External links * * Benthesicymidaeat WoRMS Dendrobranchiata Decapod families {{Dendrobranchiata-stub .... Some species may occur at higher latitudes. For instance, collections of '' Gennadas kempi'' have been made as far south as 61° south in the Antarctic Ocean. References * Vertical distribution and feeding of the shrimp genera Gennadas and Bentheogennema (Decapoda: Penaeidea) in the eastern Gulf of Mexico. JJ Heffernan, TL Hopkins, Journal of Crustacean Biology, 1981 * Sur les Gennadas ou Pénéides bathypélagiques. EL Bouvier, Bulletin du Musée Océanographique de Monaco, 1906 * The eyes of mesopelagic crustaceans: I. Gennadas sp.(Penaeidae). VB Meyer-Rochow, S Walsh, Cell and Tissue Research, 1977 * Hendrickx, M.E. 2015: Further records of species of Gennadas (Crustacea, Decapoda, Dendrobranchiata, ...
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Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ...
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Arthropod
Arthropods (, (gen. ποδός)) are invertebrate animals with an exoskeleton, a Segmentation (biology), segmented body, and paired jointed appendages. Arthropods form the phylum Arthropoda. They are distinguished by their jointed limbs and Arthropod cuticle, cuticle made of chitin, often Mineralization (biology), mineralised with calcium carbonate. The arthropod body plan consists of segments, each with a pair of appendages. Arthropods are bilaterally symmetrical and their body possesses an exoskeleton, external skeleton. In order to keep growing, they must go through stages of moulting, a process by which they shed their exoskeleton to reveal a new one. Some species have wings. They are an extremely diverse group, with up to 10 million species. The haemocoel, an arthropod's internal cavity, through which its haemolymph – analogue of blood – circulates, accommodates its interior Organ (anatomy), organs; it has an open circulatory system. Like their exteriors, the internal or ...
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Crustacean
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean group can be treated as a subphylum under the clade Mandibulata. It is now well accepted that the hexapods emerged deep in the Crustacean group, with the completed group referred to as Pancrustacea. Some crustaceans (Remipedia, Cephalocarida, Branchiopoda) are more closely related to insects and the other hexapods than they are to certain other crustaceans. The 67,000 described species range in size from '' Stygotantulus stocki'' at , to the Japanese spider crab with a leg span of up to and a mass of . Like other arthropods, crustaceans have an exoskeleton, which they moult to grow. They are distinguished from other groups of arthropods, such as insects, myriapods and chelicerates, by the possession of biramous (two-parted) limbs, and by th ...
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Malacostraca
Malacostraca (from New Latin; ) is the largest of the six classes of crustaceans, containing about 40,000 living species, divided among 16 orders. Its members, the malacostracans, display a great diversity of body forms and include crabs, lobsters, crayfish, shrimp, krill, prawns, woodlice, amphipods, mantis shrimp, tongue-eating lice and many other less familiar animals. They are abundant in all marine environments and have colonised freshwater and terrestrial habitats. They are segmented animals, united by a common body plan comprising 20 body segments (rarely 21), and divided into a head, thorax, and abdomen. Etymology The name Malacostraca was coined by a French zoologist Pierre André Latreille in 1802. He was curator of the arthropod collection at the National Museum of Natural History in Paris. The name comes from the Greek roots (', meaning "soft") and (', meaning "shell"). The name is misleading, since the shell is soft only immediately after moulting, and is u ...
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Decapoda
The Decapoda or decapods (literally "ten-footed") are an order of crustaceans within the class Malacostraca, including many familiar groups, such as crabs, lobsters, crayfish, shrimp and prawns. Most decapods are scavengers. The order is estimated to contain nearly 15,000 species in around 2,700 genera, with around 3,300 fossil species. Nearly half of these species are crabs, with the shrimp (about 3,000 species) and Anomura including hermit crabs, porcelain crabs, squat lobsters (about 2500 species) making up the bulk of the remainder. The earliest fossil decapod is the Devonian ''Palaeopalaemon''. Anatomy Decapods can have as many as 38 appendages, arranged in one pair per body segment. As the name Decapoda (from the Greek , ', "ten", and , '' -pod'', "foot") implies, ten of these appendages are considered legs. They are the pereiopods, found on the last five thoracic segments. In many decapods, one pair of these "legs" has enlarged pincers, called chelae, with the legs be ...
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Benthesicymidae
Benthesicymidae is a family of shrimps in the suborder Dendrobranchiata. References External links * * Benthesicymidaeat WoRMS Dendrobranchiata Decapod families {{Dendrobranchiata-stub ...
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Charles Spence Bate
Charles Spence Bate, FRS (March 16, 1819 – July 29, 1889) was a British zoologist and dentist. Life He was born at Trenick House near Truro, the son of Charles Bate (1789–1872) and Harriet Spence (1788–1879). Charles adopted "Spence Bate" as his surname, perhaps to distinguish himself from his father, and used that name consistently in his publications; it was also used consistently by his contemporaries to refer to him. He practiced dentistry first at Swansea, and then at Plymouth, taking over his father's practice. He was president of the Odontology Society. He was an authority on the Crustacea, for which he was elected a fellow of the Royal Society in 1861, and a frequent correspondent of Charles Darwin, mostly concerning their shared interest in barnacles. Together with John Obadiah Westwood, he wrote "''A history of the British sessile-eyed Crustacea''" in 1868. He wrote reports on the crustaceans collected during the HMS ''Challenger'' expedition of 1872–1876. ...
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Gennadas Elegans
''Gennadas elegans'' is a species of shrimps in the family Benthesicymidae Benthesicymidae is a family of shrimps in the suborder Dendrobranchiata. References External links * * Benthesicymidaeat WoRMS Dendrobranchiata Decapod families {{Dendrobranchiata-stub .... It is found on the east coast of the United States. References External links ''Gennadas elegans''at WoRMS Dendrobranchiata Crustaceans described in 1882 {{decapod-stub ...
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Gennadas Kempi
''Gennadas'' is a genus of shrimps in the family Benthesicymidae Benthesicymidae is a family of shrimps in the suborder Dendrobranchiata. References External links * * Benthesicymidaeat WoRMS Dendrobranchiata Decapod families {{Dendrobranchiata-stub .... Some species may occur at higher latitudes. For instance, collections of '' Gennadas kempi'' have been made as far south as 61° south in the Antarctic Ocean. References * Vertical distribution and feeding of the shrimp genera Gennadas and Bentheogennema (Decapoda: Penaeidea) in the eastern Gulf of Mexico. JJ Heffernan, TL Hopkins, Journal of Crustacean Biology, 1981 * Sur les Gennadas ou Pénéides bathypélagiques. EL Bouvier, Bulletin du Musée Océanographique de Monaco, 1906 * The eyes of mesopelagic crustaceans: I. Gennadas sp.(Penaeidae). VB Meyer-Rochow, S Walsh, Cell and Tissue Research, 1977 * Hendrickx, M.E. 2015: Further records of species of Gennadas (Crustacea, Decapoda, Dendrobranchiata, ...
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61st Parallel South
The 61st parallel south is a circle of latitude that is 61 degrees south of the Earth's equatorial plane. No land lies on the parallel—it crosses nothing but the Southern Ocean. At this latitude the sun is visible for 19 hours, 16 minutes during the December solstice and 5 hours, 32 minutes during the June solstice. Around the world Starting at the Prime Meridian and heading eastwards, the parallel 61° south passes through: : See also *60th parallel south The 60th parallel south is a circle of latitude that is 60 degrees south of Earth's equatorial plane. No land lies on the parallel—it crosses nothing but ocean. The closest land is a group of rocks north of Coronation Island (Melson Rocks or ... * 62nd parallel south References {{Reflist s61 ...
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Antarctic Ocean
The Southern Ocean, also known as the Antarctic Ocean, comprises the southernmost waters of the World Ocean, generally taken to be south of 60° S latitude and encircling Antarctica. With a size of , it is regarded as the second-smallest of the five principal oceanic divisions: smaller than the Pacific, Atlantic Ocean, Atlantic, and Indian Ocean, Indian oceans but larger than the Arctic Ocean. Over the past 30 years, the Southern Ocean has been subject to rapid climate change, which has led to changes in the marine ecosystem. By way of his voyages in the 1770s, James Cook proved that waters encompassed the southern latitudes of the globe. Since then, geographers have disagreed on the Southern Ocean's northern boundary or even existence, considering the waters as various parts of the Pacific, Atlantic, and Indian oceans, instead. However, according to Commodore John Leech of the International Hydrographic Organization (IHO), recent oceanographic research has discovered ...
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Dendrobranchiata
Dendrobranchiata is a suborder of Decapoda, decapods, commonly known as prawns. There are 540 extant species in seven families, and a fossil record extending back to the Devonian. They differ from related animals, such as Caridea and Stenopodidea, by the branching form of the gills and by the fact that they do not brood their eggs, but release them directly into the water. They may reach a length of over and a mass of , and are widely shrimp fishery, fished and shrimp farm, farmed for human consumption. Shrimp and prawns While Dendrobranchiata and Caridea belong to different Order (biology), suborders of Decapoda, they are very similar in appearance, and in many contexts such as commercial farming and Fishery, fisheries, they are both often referred to as "shrimp" and "prawn" interchangeably. In the United Kingdom, the word "prawn" is more common on menus than "shrimp", while the opposite is the case in North America. The term "prawn" is also loosely used to describe any large s ...
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