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Portunidae - Portunus Convexus
Portunidae is a family of crabs which contains the swimming crabs. Its members include well-known shoreline crabs such as the blue crab (''Callinectes sapidus'') and velvet crab ('' Necora puber''). Description Portunid crabs are characterised by the flattening of the fifth pair of legs into broad paddles, which are used for swimming. This ability, together with their strong, sharp claws, allows many species to be fast and aggressive predators. Taxonomy Swimming crabs reach their greatest species diversity in the Pacific and Indian Oceans. Portunidae consists of the following subfamilies and genera: ;Achelouinae ;Caphyrinae ;Carupinae ;Coelocarcininae ;Lupocyclinae ;Necronectinae ;Podophthalminae ;Portuninae ;Thalamitinae ;''incertae sedis or is a term used for a taxonomy (biology), taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liocarcinus Depurator
''Polybius depurator'', sometimes called the harbour crab or sandy swimming crab, is a species of crab found in the North Sea, Atlantic Ocean, Mediterranean Sea, and Black Sea. It grows up to in width and long, and can be distinguished from other crabs, such as the shore crab ''Carcinus maenas'', by the curved rows of white spots on its carapace. The species was first described by Carl Linnaeus in 1758, in his 10th edition of ''Systema Naturae''. It has a synonym, ''Portunus plicatus'', which was given by Antoine Risso Giuseppe Antonio Risso (8 April 1777 – 25 August 1845), called Antoine Risso, was a naturalist from Nice. Risso was born in the city of Nice in the Duchy of Savoy, and studied under Giovanni Battista Balbis. He published ' (1810), ' (1826) an ... in 1816. The females in this species reach maturity within their first year of life. They reach their peak of reproduction during the winter time in the Mediterranean. References Portunoidea Crabs of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Achelous (crab)
In ancient Greek religion and mythology, Achelous (also Acheloos or Acheloios) (; Ancient Greek: Ἀχελώϊος, and later , ''Akhelôios'') was the god associated with the Achelous River, the largest river in Greece. According to Hesiod, he was the son of the Titans Oceanus and Tethys. He was also said to be the father of the Sirens, several nymphs, and other offspring. Achelous was able to change his shape, and in the form of a bull, he wrestled Heracles for the right to marry Deianeira, but lost. He was also involved in the legend of the Argive hero Alcmaeon. Etymology The name Ἀχελώϊος is possibly pre-Greek, its meaning is not entirely certain. Recent arguments suggest it is Semitic in origin, with the initial Αχ- stemming from the Akkadian ''aḫu'' ("bank of the river"), or ''aḫû'' ("seashore") and the suffix -ελώἴος, from the Akkadian ''illu'' ("watercourse" or "water of the river invading land"). According to linguist , the Thracian river name ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portunoidea
__NOTOC__ Portunoidea is a superfamily of crabs that includes the family Portunidae, the swimming crabs. Which other crab families are also placed here is a matter of some contention, and may be revised following molecular phylogenetic analyses. Description Their rather flat and smooth carapace is usually wider than long and of hexagonal, subhexagonal, rectangular, or transversely ovate shape. It is usually widest between the hindmost spines of the forward rim; there may be up to 9 pairs of these spines, with a few smaller ones right above the head, but they are missing altogether in some species. In some, the first maxilliped's endopod is lobed, forming the characteristic portunid lobe. The chelipeds are usually robust, and in some the last pereiopod pair has ovate dactyls. The sutures of the sternum between segments 4 to 8 are usually incomplete, and in the Portunidae, the eighth sternite is usually visible if seen from below and has a penial groove. In males, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Incertae Sedis
or is a term used for a taxonomy (biology), taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertainty at specific taxonomic levels is indicated by (of uncertain family), (of uncertain suborder), (of uncertain order) and similar terms. Examples * The fossil plant ''Paradinandra, Paradinandra suecica'' could not be assigned to any family, but was placed ''incertae sedis'' within the order Ericales when described in 2001. * The fossil ''Gluteus minimus (fossil), Gluteus minimus'', described in 1975, could not be assigned to any known animal phylum. The genus is therefore ''incertae sedis'' within the kingdom Animalia. * While it was unclear to which order the New World vultures (family Cathartidae) should be assigned, they were placed in Aves ''incertae sedis''. It was later agreed to place them in a separate order, Cathartiformes. * Boc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charybdis (crab)
''Charybdis'' is a genus of swimming crabs in the family Portunidae. It is named after the monster Charybdis of Greek mythology. Species The genus ''Charybdis'' contains the following species: ;Subgenus'' Charybdis'' (''Charybdis'') De Haan, 1833 *'' Charybdis acuta'' ( A. Milne-Edwards, 1869) *'' Charybdis acutidens'' Türkay, 1986 *'' Charybdis affinis'' Dana, 1852 *'' Charybdis amboinensis'' Leene, 1938 *'' Charybdis anisodon'' (De Haan, 1850) *'' Charybdis annulata'' ( Fabricius, 1798) *'' Charybdis beauforti'' Leene & Buitendijk, 1949 *'' Charybdis brevispinosa'' Leene, 1937 *'' Charybdis callianassa'' ( Herbst, 1789) *'' Charybdis cookei'' Rathbun, 1923 *'' Charybdis crosnieri'' Spiridonov & Türkay, 2001 *'' Charybdis curtilobus'' Stephenson & Rees, 1967 *'' Charybdis demani'' Leene, 1937 *'' Charybdis feriata'' (Linnaeus, 1758) *'' Charybdis gordonae'' Shen, 1934 *'' Charybdis granulata'' (De Haan, 1833) *'' Charybdis hawaiensis'' Edmondson, 1954 *'' Charybdis hellerii ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mary J
Mary may refer to: People * Mary (name), a female given name (includes a list of people with the name) Religion * New Testament people named Mary, overview article linking to many of those below * Mary, mother of Jesus, also called the Blessed Virgin Mary * Mary Magdalene, devoted follower of Jesus * Mary of Bethany, follower of Jesus, considered by Western medieval tradition to be the same person as Mary Magdalene * Mary, mother of James * Mary of Clopas, follower of Jesus * Mary, mother of John Mark * Mary of Egypt, patron saint of penitents * Mary of Rome, a New Testament woman * Mary the Jewess, one of the reputed founders of alchemy, referred to by Zosimus. Royalty * Mary, Countess of Blois (1200–1241), daughter of Walter of Avesnes and Margaret of Blois * Mary of Burgundy (1457–1482), daughter of Charles the Bold, Duke of Burgundy * Queen Mary of Denmark (born 1972), wife of Frederik X of Denmark * Mary I of England (1516–1558), aka "Bloody Mary", Queen of England ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scylla (crustacean)
''Scylla'' is a genus of swimming crabs, comprising four species, of which '' S. serrata'' is the most widespread. They are found across the Indo-West Pacific The Indo-Pacific is a vast biogeographic region of Earth. In a narrow sense, sometimes known as the Indo-West Pacific or Indo-Pacific Asia, it comprises the tropical waters of the Indian Ocean, the western and central Pacific Ocean, and the s .... The four species are: References Portunoidea Decapod genera Taxa named by Wilhem de Haan {{Portunoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kume (crab)
is a town located in Shimajiri District, Okinawa Prefecture, Japan. The town consists of the islands of Kume, Ōjima, Ōhajima, Torishima, and Iōtorishima. Among the islands, only Kumejima and Ōjima are populated. Kumejima is located approximately west of Naha. The town can be accessed by the New Kumejima Ferry, Japan Transocean Air, or Ryukyu Air Commuter. Kumejima Airport serves the island. , the town had an estimated population of 7,192 and a population density of . The total area is . Kume Island is often said to be one of the most beautiful of the Okinawa Islands. It is well known for its textiles, called Kumejima-tsumugi which are designated an Important Intangible Cultural Property. The town is also known for its Kumesen Awamori (Okinawan sake) and deep sea water. Kumejima's main industries are sugar cane (sato-kibi), tourism, and deep seawater products. History Historically due to Kume's abundance of freshwater, rice was once extensively cultivated. In 1506, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Obelisk (typography)
A dagger, obelisk, or obelus is a typographical mark that usually indicates a footnote if an asterisk has already been used. The symbol is also used to indicate death (of people) or extinction (of species or languages). It is one of the modern descendants of the obelus, a mark used historically by scholars as a critical or highlighting indicator in manuscripts. In older texts, it is called an ''obelisk''. A double dagger, or diesis, is a variant with two hilts and crossguards that usually marks a third footnote after the asterisk and dagger. The triple dagger is a variant with three crossguards and is used by medievalists to indicate another level of notation. History The dagger symbol originated from a variant of the obelus, originally depicted by a plain line or a line with one or two dots . It represented an iron roasting spit, a dart, or the sharp end of a javelin, symbolizing the skewering or cutting out of dubious matter. The obelus is believed to have been inve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Constantine Samuel Rafinesque-Schmaltz
Constantine Samuel Rafinesque-Schmaltz (; 22 October 178318 September 1840) was a French early 19th-century polymath born near Constantinople in the Ottoman Empire and self-educated in France. He traveled as a young man in the United States, ultimately settling in Ohio in 1815, where he made notable contributions to botany, zoology, and the study of Mound Builders, prehistoric earthworks in North America. He also contributed to the study of ancient Mesoamerican languages, Mesoamerican linguistics, in addition to work he had already completed in Europe. Rafinesque was an eccentric and erratic genius. He was an autodidact, who excelled in various fields of knowledge, as a zoologist, botanist, writer and Polyglot (person), polyglot. He wrote prolifically on such diverse topics as anthropology, biology, geology, and linguistics, but was honored in none of these fields during his lifetime. Indeed, he was an outcast in the American scientific community and his submissions were automati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
