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Calma (gastropod)
''Calma'' is a genus of marine nudibranch in the family Calmidae Calmidae is a taxonomic family of sea slugs with only one genus and two species. These are specifically aeolid nudibranchs. They are marine gastropod molluscs in the superfamily Fionoidea. This family has no subfamilies. Taxonomic history The ....Gofas, S. (2015)''Calma'' Alder & Hancock, 1855.In: MolluscaBase (2015). Accessed through: World Register of Marine Species on 2015-10-14 Species Species in the genus ''Calma'' include: * '' Calma glaucoides'' (Alder & Hancock, 1854) * '' Calma gobioophaga'' Calado & Urgorri, 2002 References * Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca. in: Costello, M.J. et al. (Ed.) (2001). E''uropean register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification''. Collection Patrimoines Naturels. 50: pp. 180–213. {{Taxonbar, from=Q3650931 Calmidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
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 c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nudibranch
Nudibranchs () are a group of soft-bodied marine gastropod molluscs which shed their shells after their larval stage. They are noted for their often extraordinary colours and striking forms, and they have been given colourful nicknames to match, such as "clown", "marigold", "splendid", "dancer", "dragon", or "sea rabbit". Currently, about 3,000 valid species of nudibranchs are known.Ocean Portal (2017)A Collage of Nudibranch Colors Smithsonian National Museum of Natural History. Retrieved 17 April 2018. The word "nudibranch" comes from the Latin "naked" and the Ancient Greek () " gills". Nudibranchs are often casually called sea slugs, as they are a family of opistobranchs (sea slugs), within the phylum Mollusca (molluscs), but many sea slugs belong to several taxonomic groups which are not closely related to nudibranchs. A number of these other sea slugs, such as the photosynthetic '' Sacoglossa'' and the colourful Aglajidae, are often confused with nudibranchs. Dist ... [...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 opi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calmidae
Calmidae is a taxonomic family of sea slugs with only one genus and two species. These are specifically aeolid nudibranchs. They are marine gastropod molluscs in the superfamily Fionoidea. This family has no subfamilies. Taxonomic history The genera in this family were moved to the family Fionidae Fionidae is a family of sea slugs, aeolid nudibranchs, marine gastropod molluscs in the superfamily Fionoidea. Taxonomic history This family was expanded to include Tergipedidae, Eubranchidae and Calmidae as a result of a molecular phylogenet ... as a result of a molecular phylogenetics study.Cella, K; Carmona Barnosi, L.; Ekimova, I; Chichvarkhin, A; Schepetov, D; Gosliner, T. M. (2016)''A radical solution: The phylogeny of the nudibranch family Fionidae.''PLoS ONE. 11(12): e0167800. Biology Species in this family have an unusual diet for Nudibranchs. They feed on fish eggs. References External links * Vaught, K.C. (1989). A classification of the living Mollusca. America ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calma Glaucoides
''Calma glaucoides'' is a species of marine nudibranch in the family Calmidae. The holotype was described by Alder & Hancock in 1854 from Herm in the Channel Islands, but the nudibranch has since been detected in other parts of the British Isles. It was originally given the name ''Eolis glaucoides'' but has since been transferred to the genus '' Calma''. It is an egg predator, feeding on the eggs of fish and cephalopods. Description ''Calma glaucoides'' grows to a length of about . The body is white and translucent; the head is small, the oral tentacles are small and smooth, and the branchial process is almost linear, being white fringed with yellow. The central part of the body is depressed and the central gland is a brownish colour. The cerata are arranged in eleven clusters, each sharing a common pedicle. Distribution and habitat Native to the northeastern Atlantic Ocean, ''C. glaucoides'' is found on the coasts of the British Isles, the Channel Islands, France and Spai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calma Gobioophaga
Calma Company, based in Sunnyvale, California, was, between 1965 and 1988, a vendor of digitizers and minicomputer-based graphics systems targeted at the cartographic and electronic, mechanical and architectural design markets. In the electronic area, the company's best known products were GDS (an abbreviation for "Graphic Design System" ), introduced in 1971, and GDS II, introduced in 1978. By the end of the 1970s, Calma systems were installed in virtually every major semiconductor manufacturing company. The external format of the GDS II database, known as GDS II Stream Format, became a ''de facto'' standard for the interchange of IC mask information. The use of this format persisted into the 21st century, long after the demise of the GDS II computer system. In the integrated circuit industry jargon of 2008, "GDS II" referred no longer to the computer system, but to the format itself. Vendors of electronic design automation software often use the phrase "from RTL to GDSII ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
