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Krachia Korytnicensis
''Krachia'' is a genus of minute sea snails, marine gastropod molluscs in the family Cerithiopsidae. Species Species in the genus ''Krachia'' include: * ''Krachia cossmanni'' (Dautzenberg & Fischer H., 1896) * '' Krachia cylindrata'' (Jeffreys, 1885) * ''Krachia guernei ''Krachia guernei'' is a species of sea snail, a gastropod in the family Cerithiopsidae, which is known from European waters. It was described by Dautzenberg and Fischer H., in 1896. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johannes Thiele (zoologist)
Karl Hermann Johannes Thiele (1 October 1860 – 5 August 1935) was a German zoologist specialized in malacology. Thiele was born in Goldap, East Prussia. His ''Handbuch der systematischen Weichtierkunde'' (English edition published by the Smithsonian under the title ''Handbook of Systematic Malacology'') is a standard work. From 1904 until his retirement in 1925 he was the curator of the malacological collection at the Museum für Naturkunde (Museum of Natural History) in Berlin. Thiele described more than 1.500 new species of molluscs; until today their types are deposited with the Museum of Natural History in Berlin. Especially important are his works on the Mollusca of the First German Antarctica Expedition and of the German Deep Sea Expedition aboard the vessel Valdivia. Thiele's classification of Gastropoda has been in use up to the past decade. It modified an earlier concept of Henri Milne-Edwards (1848) with three subclasses: Prosobranchia, Opisthobranchia and Pulmonata. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 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 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. phylogenetic analysis should clearly demons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Snail
Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the absence of a visible shell. Definition Determining whether some gastropods should be called sea snails is not always easy. Some species that live in brackish water (such as certain neritids) can be listed as either freshwater snails or marine snails, and some species that live at or just above the high tide level (for example species in the genus '' Truncatella'') are sometimes considered to be sea snails and sometimes listed as land snails. Anatomy Sea snails are a very large group of animals and a very diverse one. Most snails that live in salt water respire using a gill or gills; a few species, though, have a lung, are intertidal, and are active only at low tide when they can move around in the air. These air-breathing species includ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine (ocean)
The ocean (also the sea or the world ocean) is the body of salt water that covers approximately 70.8% of the surface of Earth and contains 97% of Earth's water. An ocean can also refer to any of the large bodies of water into which the world ocean is conventionally divided."Ocean." ''Merriam-Webster.com Dictionary'', Merriam-Webster, |
Gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. There are many thousands of species of sea snails and slugs, as well as freshwater snails, freshwater limpets, and land snails and slugs. The class Gastropoda contains a vast total of named species, second only to the insects in overall number. The fossil history of this class goes back to the Late Cambrian. , 721 families of gastropods are known, of which 245 are extinct and appear only in the fossil record, while 476 are currently extant with or without a fossil record. Gastropoda (previously known as univalves and sometimes spelled "Gasteropoda") are a major part of the phylum Mollusca, and are the most highly diversified class in the phylum, with 65,000 to 80,000 living snail and slug species. The anatomy, behavior, feeding, and re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusc
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is estimated between 60,000 and 100,000 additional species. The proportion of undescribed species is very high. Many taxa remain poorly studied. Molluscs are the largest marine phylum, comprising about 23% of all the named marine organisms. Numerous molluscs also live in freshwater and terrestrial habitats. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat. The phylum is typically divided into 7 or 8 taxonomic classes, of which two are entirely extinct. Cephalopod molluscs, such as squid, cuttlefish, and octopuses, are among the most neurologically advanced of all invertebrates—and either the giant squid or the colossal squid is the largest known invertebrate species. The gastropods ... [...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] |
Cerithiopsidae
Cerithiopsidae is a family of very small sea snails in the informal group Ptenoglossa. Members of this family are known as cerithiopsids.MolluscaBase eds. (2020). MolluscaBase. Cerithiopsidae H. Adams & A. Adams, 1853. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=130 on 2020-08-02 These tiny snails have shells that are very high- spired and consist of multiple whorls. Subfamilies The following subfamilies were recognized in the taxonomy of Bouchet & Rocroi (2005): * Aliptinae * Cerithiopsinae * Seilinae Genera , the following genera are included in the family Cerithiopsidae: ;Genera brought into synonymy: * ''Australopsis'' Cecalupo & Perugia, 2014: synonym of '' Oparopsis'' Cecalupo & Perugia, 2015 (invalid: junior homonym of ''Australopsis'' Hinz-Schallreuter, 1993 stracoda ''Oparopsis'' is a replacement name) * ''Callisteuma'' Tomlin, 1929: synonym of ''Granulopsis'' ''Cecalupo & Perugia, 2012'' (inva ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Krachia Cossmanni
''Krachia cossmanni'' is a species of sea snail, a gastropod in the family Cerithiopsidae, which is known from European waters, including the United Kingdom Exclusive Economic Zone. It was described by Dautzenberg and Fischer H., in 1896. at . Distribution This marine species occurs in European waters found at bathyal depths off the , , the |
Krachia Cylindrata
''Krachia cylindrata'' is a species of sea snail, a gastropod in the family Cerithiopsidae, which is known from European waters. It was described by Jeffreys, in 1885. at . Distribution This species occurs in the Mediterranean Sea, found off the , Italy.Description The size of the shell varies between 2.5 mm and 5 mm.References * Jeffreys J. G., 1878-1885: ''On the mollusca procured during the H. M. ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Krachia Guernei
''Krachia guernei'' is a species of sea snail, a gastropod in the family Cerithiopsidae, which is known from European waters. It was described by Dautzenberg and Fischer H., in 1896. at World Register of Marine Species
The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms.
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The content of the registry is edited and maintained by scientific specialist ... .
References * Dautzenberg P. & Fischer H., 1896: ''Dragages effectués par l'Hirondelle et par la Princesse Alice 1888-1895. ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Krachia Korytnicensis
''Krachia'' is a genus of minute sea snails, marine gastropod molluscs in the family Cerithiopsidae. Species Species in the genus ''Krachia'' include: * ''Krachia cossmanni'' (Dautzenberg & Fischer H., 1896) * '' Krachia cylindrata'' (Jeffreys, 1885) * ''Krachia guernei ''Krachia guernei'' is a species of sea snail, a gastropod in the family Cerithiopsidae, which is known from European waters. It was described by Dautzenberg and Fischer H., in 1896. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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