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Goneplacidae
Goneplacidae is a family of crabs of the order Decapoda and the superfamily Goneplacoidea. It includes the following genera Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclat ...: *† '' Amydrocarcinus'' Schweitzer, Feldmann, Gonzáles-Barba & Vega, 2002 *'' Bathyplax'' A. Milne-Edwards, 1880 *'' Carcinoplax'' H. Milne-Edwards, 1852 *'' Entricoplax'' Castro, 2007 *'' Exopheticus'' Castro, 2007 *'' Goneplacoides'' Castro, 2007 *'' Goneplax'' Leach, 1814 *'' Hadroplax'' Castro, 2007 *† '' Icriocarcinus'' Bishop, 1988 *† '' Kowaicarcinus'' Feldmann, Schweitzer, Maxwell & Kelley, 2008 *† '' Magyarcarcinus'' Schweitzer & Karasawa, 2004 *'' Menoplax'' Castro, 2007 *'' Microgoneplax'' Castro, 2007 *'' Neogoneplax'' Castro, 2007 *'' Neommatocarcinus'' Takeda & Miyake, 1969 *'' Notonyx'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goneplax Rhomboides
''Goneplax rhomboides'' is a species of crab. It is known by the common name angular crab because of its angular carapace. Although it is also called the ''square crab'', its shell is in fact more trapezoidal than square (or rhomboidal, as its scientific name might suggest). This species is also known as the '' mud-runner'' because they are able to run away quickly when threatened. Description ''Goneplax rhomboides'' is a relatively small (carapace up to in diameter), distinctive-looking crab that ranges from yellowish-white, to orange, too reddish to vivid pink in colour. It has a smooth, quadrangular, strongly convex carapace that is much broader than it is long. It has long, slender pereiopods with margins of propodus and dactylus bristles. It likewise has setae on its antennae and mouthparts. Females have short chelipeds but the chelipeds of males are long, with the merus portion of the claw considerably longer than the length of their carapaces. ''G. rhomboides'' has ofte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goneplax
''Goneplax'' is a genus of crabs, containing the following extant species: *'' Goneplax barnardi'' (Capart, 1951) *'' Goneplax clevai'' Guinot & Castro, 2007 *''Goneplax rhomboides'' (Linnaeus, 1758) *'' Goneplax sigsbei'' (A. Milne-Edwards, 1880) A further five species are also known from the fossil record, dating from the Miocene The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recen ... onwards. References Goneplacoidea Extant Miocene first appearances {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Icriocarcinus
''Icriocarcinus'' is an extinct genus of crab from the Maastrichtian or Campanian of Baja California, Mexico, and Merced County, California Merced County ( ), is a county located in the northern San Joaquin Valley section of the Central Valley, in the U.S. state of California. As of the 2020 census, the population was 281,202. The county seat is Merced. The county is named after ..., United States. References Goneplacoidea Late Cretaceous crustaceans Monotypic arthropod genera Cretaceous arthropods of North America Late Cretaceous animals of North America Cretaceous California Cretaceous Mexico Fossil taxa described in 1988 Fossils of Mexico Fossils of California {{paleo-crustacean-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goneplacoidea
Goneplacoidea is a superfamily of crabs containing 11 extant families, and two families known only from fossils (marked "†"). * Acidopsidae * † Carinocarcinoididae * Chasmocarcinidae * Conleyidae * Euryplacidae * Goneplacidae * Litocheiridae * † Martinocarcinidae * Mathildellidae Mathildellidae is family of crab 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 un ... * Progeryonidae * Scalopidiidae * Sotoplacidae * Vultocinidae References External links * * Crabs Arthropod superfamilies {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crab
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 w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psopheticus
''Goneplax'' is a genus of crabs, in the family, Goneplacedae, containing the following extant species: *'' Psopheticus crosnieri'' *'' Psopheticus musicus'' *'' Psopheticus stridulans'' *'' Psopheticus vocans'' A further species ('' Psopheticus shujenae'') is known from the fossil record (as is also ''Psopheticus stridulans''), dating from 0.012 Ma onwards. It was first described in 1892 by James Wood-Mason James Wood-Mason (December 1846 – 6 May 1893) was an English zoologist. He was the director of the Indian Museum at Calcutta, after John Anderson. He collected marine animals and lepidoptera, but is best known for his work on two other groups ....Wood-Mason J. 1891. Administration Report of Marine Survey of India or 1890-1891 Office of the Superintendent of Government Printing, Calcutta. 20 pp. References Goneplacoidea {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zootaxa
''Zootaxa'' is a peer-reviewed scientific mega journal for animal taxonomists. It is published by Magnolia Press (Auckland, New Zealand). The journal was established by Zhi-Qiang Zhang in 2001 and new issues are published multiple times a week. From 2001 to 2020, more than 60,000 new species have been described in the journal accounting for around 25% of all new taxa indexed in The Zoological Record in the last few years. Print and online versions are available. Temporary suspension from JCR The journal exhibited high levels of self-citation and its journal impact factor of 2019 was suspended from ''Journal Citation Reports'' in 2020, a sanction which hit 34 journals in total. Biologist Ross Mounce noted that high levels of self-citation may be inevitable for a journal which publishes a large share of new species classification. Later that year this decision was reversed and it was admitted that levels of self-citation are appropriate considering the large proportion of papers f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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