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Mysis Segerstralei
''Mysis'' is a genus of mysid crustaceans in the family Mysidae, distributed mainly in the coastal zone of the Arctic and high boreal seas. Several species also inhabit northern freshwater lakes and the brackish Caspian Sea. Fifteen species are recognized. Body lengths range from . The freshwater taxa of the genus have been referred to as "glacial relicts", and they comprise four closely related species, most of which also live in brackish water. ''Mysis relicta'' is a freshwater species from boreal lakes of Northern Europe, also present in the Baltic Sea. ''Mysis salemaai'' is another North European and Baltic Sea taxon. ''Mysis segerstralei'' is a fresh- and brackish-water species of the Eurasian and North American Arctic and sub-Arctic. The North American lakes, including the Great Lakes, are inhabited by ''Mysis diluviana''. Various species of Mysis are found in lakes of the South Swedish highlands, like Lake Sommen, that were never connected to the sea or the Baltic Ice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mysis Diluviana
''Mysis diluviana'' is a mysid crustacean (opossum shrimp) found in freshwater lakes of northern North America. Appearance ''Mysis'' is a small, transparent shrimp-like crustacean, less than in length. It has two pairs of relatively long antennae, associated with rounded antennal plates; large, stalked compound eyes; the thorax covered by a coat-like carapace; a muscular, cylindrical abdomen; and a tail fan featuring a telson with a V-shaped terminal cleft. Reproducing females bear a prominent brood pouch (marsupium) between their thoracal legs. The pleopods (abdominal legs) of ''Mysis'' are reduced, except for a specialized pair of mating legs in males. Distribution and related species The natural distribution of ''Mysis diluviana'' comprises the Great Lakes of North America, and many other coldwater lakes across Canada and in northern parts of the United States, including Wisconsin (e.g. Green Lake, Trout Lake, and Geneva Lake) and northern New York State (e.g. Finger Lak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sommen
Sommen () is a lake in the South Swedish highlands lying across the border of the provinces of Östergötland and Småland. Situated about 147 metres above mean sea level, the lake has an area of and has a maximum depth of 60 metres. The lake is shared between the administrative kommunes of Ydre, Kinda, Boxholm and Tranås and the area around it is sparsely populated. The lake has very clear water, with a visibility of 8 to 10 metres deep, if conditions are good. This makes Sommen one of the greatest clear-water lakes in Sweden. According to tradition Sommen has 365 islands, one for each day of the year. The actual number is around 260. In and around the lake various rare species are protected in a series of nature reserves, bird sanctuaries and areas closed for fishing. Måltorpet Granbo in Sommen is a Natura 2000 area. The visitor centre and natural history museum, Naturum Sommen, lies at the northern end of Torpön island, near the central part of the lake. According to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mysis Mixta
''Mysis'' is a genus of mysid crustaceans in the family Mysidae, distributed mainly in the coastal zone of the Arctic and high boreal seas. Several species also inhabit northern freshwater lakes and the brackish Caspian Sea. Fifteen species are recognized. Body lengths range from . The freshwater taxa of the genus have been referred to as "glacial relicts", and they comprise four closely related species, most of which also live in brackish water. ''Mysis relicta'' is a freshwater species from boreal lakes of Northern Europe, also present in the Baltic Sea. ''Mysis salemaai'' is another North European and Baltic Sea taxon. ''Mysis segerstralei'' is a fresh- and brackish-water species of the Eurasian and North American Arctic and sub-Arctic. The North American lakes, including the Great Lakes, are inhabited by ''Mysis diluviana''. Various species of Mysis are found in lakes of the South Swedish highlands, like Lake Sommen, that were never connected to the sea or the Baltic Ice La ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mysis Microphthalma
''Mysis'' is a genus of mysid crustaceans in the family Mysidae, distributed mainly in the coastal zone of the Arctic and high boreal seas. Several species also inhabit northern freshwater lakes and the brackish Caspian Sea. Fifteen species are recognized. Body lengths range from . The freshwater taxa of the genus have been referred to as "glacial relicts", and they comprise four closely related species, most of which also live in brackish water. ''Mysis relicta'' is a freshwater species from boreal lakes of Northern Europe, also present in the Baltic Sea. ''Mysis salemaai'' is another North European and Baltic Sea taxon. ''Mysis segerstralei'' is a fresh- and brackish-water species of the Eurasian and North American Arctic and sub-Arctic. The North American lakes, including the Great Lakes, are inhabited by ''Mysis diluviana''. Various species of Mysis are found in lakes of the South Swedish highlands, like Lake Sommen, that were never connected to the sea or the Baltic Ice La ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mysis Macrolepis
''Mysis'' is a genus of mysid crustaceans in the family Mysidae, distributed mainly in the coastal zone of the Arctic and high boreal seas. Several species also inhabit northern freshwater lakes and the brackish Caspian Sea. Fifteen species are recognized. Body lengths range from . The freshwater taxa of the genus have been referred to as "glacial relicts", and they comprise four closely related species, most of which also live in brackish water. ''Mysis relicta'' is a freshwater species from boreal lakes of Northern Europe, also present in the Baltic Sea. ''Mysis salemaai'' is another North European and Baltic Sea taxon. ''Mysis segerstralei'' is a fresh- and brackish-water species of the Eurasian and North American Arctic and sub-Arctic. The North American lakes, including the Great Lakes, are inhabited by ''Mysis diluviana''. Various species of Mysis are found in lakes of the South Swedish highlands, like Lake Sommen, that were never connected to the sea or the Baltic Ice La ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mysis Litoralis
''Mysis'' is a genus of mysid crustaceans in the family Mysidae, distributed mainly in the coastal zone of the Arctic and high boreal seas. Several species also inhabit northern freshwater lakes and the brackish Caspian Sea. Fifteen species are recognized. Body lengths range from . The freshwater taxa of the genus have been referred to as "glacial relicts", and they comprise four closely related species, most of which also live in brackish water. ''Mysis relicta'' is a freshwater species from boreal lakes of Northern Europe, also present in the Baltic Sea. ''Mysis salemaai'' is another North European and Baltic Sea taxon. ''Mysis segerstralei'' is a fresh- and brackish-water species of the Eurasian and North American Arctic and sub-Arctic. The North American lakes, including the Great Lakes, are inhabited by ''Mysis diluviana''. Various species of Mysis are found in lakes of the South Swedish highlands, like Lake Sommen, that were never connected to the sea or the Baltic Ice La ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mysis Gaspensis
''Mysis'' is a genus of mysid crustaceans in the family Mysidae, distributed mainly in the coastal zone of the Arctic and high boreal seas. Several species also inhabit northern freshwater lakes and the brackish Caspian Sea. Fifteen species are recognized. Body lengths range from . The freshwater taxa of the genus have been referred to as "glacial relicts", and they comprise four closely related species, most of which also live in brackish water. ''Mysis relicta'' is a freshwater species from boreal lakes of Northern Europe, also present in the Baltic Sea. ''Mysis salemaai'' is another North European and Baltic Sea taxon. ''Mysis segerstralei'' is a fresh- and brackish-water species of the Eurasian and North American Arctic and sub-Arctic. The North American lakes, including the Great Lakes, are inhabited by ''Mysis diluviana''. Various species of Mysis are found in lakes of the South Swedish highlands, like Lake Sommen, that were never connected to the sea or the Baltic Ice La ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mysis Caspia
''Mysis'' is a genus of mysid crustaceans in the family Mysidae, distributed mainly in the coastal zone of the Arctic and high boreal seas. Several species also inhabit northern freshwater lakes and the brackish Caspian Sea. Fifteen species are recognized. Body lengths range from . The freshwater taxa of the genus have been referred to as "glacial relicts", and they comprise four closely related species, most of which also live in brackish water. ''Mysis relicta'' is a freshwater species from boreal lakes of Northern Europe, also present in the Baltic Sea. ''Mysis salemaai'' is another North European and Baltic Sea taxon. ''Mysis segerstralei'' is a fresh- and brackish-water species of the Eurasian and North American Arctic and sub-Arctic. The North American lakes, including the Great Lakes, are inhabited by ''Mysis diluviana''. Various species of Mysis are found in lakes of the South Swedish highlands, like Lake Sommen, that were never connected to the sea or the Baltic Ice La ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mysis Amblyops
''Mysis'' is a genus of mysid crustaceans in the family Mysidae, distributed mainly in the coastal zone of the Arctic and high boreal seas. Several species also inhabit northern freshwater lakes and the brackish Caspian Sea. Fifteen species are recognized. Body lengths range from . The freshwater taxa of the genus have been referred to as "glacial relicts", and they comprise four closely related species, most of which also live in brackish water. ''Mysis relicta'' is a freshwater species from boreal lakes of Northern Europe, also present in the Baltic Sea. ''Mysis salemaai'' is another North European and Baltic Sea taxon. ''Mysis segerstralei'' is a fresh- and brackish-water species of the Eurasian and North American Arctic and sub-Arctic. The North American lakes, including the Great Lakes, are inhabited by ''Mysis diluviana''. Various species of Mysis are found in lakes of the South Swedish highlands, like Lake Sommen, that were never connected to the sea or the Baltic Ice La ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telson
The telson () is the posterior-most division of the body of an arthropod. Depending on the definition, the telson is either considered to be the final segment of the arthropod body, or an additional division that is not a true segment on account of not arising in the embryo from teloblast areas as other segments. It never carries any appendages, but a forked "tail" called the caudal furca may be present. The shape and composition of the telson differs between arthropod groups. Crustaceans In lobsters, shrimp and other decapods, the telson, along with the uropods, forms the tail fan. This is used as a paddle in the caridoid escape reaction ("lobstering"), whereby an alarmed animal rapidly flexes its tail, causing it to dart backwards. Krill can reach speeds of over 60 cm per second by this means. The trigger time to optical stimulus is, in spite of the low temperatures, only 55 milliseconds. In the Isopoda and Tanaidacea (superorder Peracarida), the last abdominal b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carapace
A carapace is a Dorsum (biology), dorsal (upper) section of the exoskeleton or shell in a number of animal groups, including arthropods, such as crustaceans and arachnids, as well as vertebrates, such as turtles and tortoises. In turtles and tortoises, the underside is called the plastron. Crustaceans In crustaceans, the carapace functions as a protective cover over the cephalothorax (i.e., the fused head and thorax, as distinct from the abdomen behind). Where it projects forward beyond the eyes, this projection is called a rostrum (anatomy), rostrum. The carapace is Calcification, calcified to varying degrees in different crustaceans. Zooplankton within the phylum Crustacea also have a carapace. These include Cladocera, ostracods, and Isopoda, isopods, but isopods only have a developed "cephalic shield" carapace covering the head. Arachnids In arachnids, the carapace is formed by the fusion of prosomal tergites into a single Plate (animal anatomy), plate which carries the e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cladistics (journal)
''Cladistics'' is a bimonthly peer-reviewed scientific journal which has published research in cladistics since 1985. It is published by Wiley-Blackwell on behalf of the Willi Hennig Society. ''Cladistics'' publishes papers relevant to evolution, systematics, and integrative biology. Papers of both a conceptual or philosophical nature, discussions of methodology, empirical studies on taxonomic groups from animals to bacteria, and applications of systematics in disciplines such as genomics, paleontology and biomedical epidemiology are accepted. Five types of paper appear in the journal: reviews, regular papers, forum papers, letters to the editor, and book reviews. According to the ''Journal Citation Reports'', the journal has a 2020 impact factor of 5.254, ranking it 10th out of 50 journals in the category "Evolutionary Biology". Its editor-in-chief An editor-in-chief (EIC), also known as lead editor or chief editor, is a publication's editorial leader who has final responsibi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
