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Homoiodorididae
Homoiodorididae O'Donoghue, 1924, was considered in the past to be a taxonomic family of nudibranchs, marine gastropod molluscs in the order Opisthobranchia. Genera Genera that were placed within the family Homoiodorididae included: * ''Dendrodoris'' Ehrenberg, 1831 : now in the family Dendrodorididae * ''Doriopsilla'' Bergh, 1880 : now in the family Dendrodorididae * ''Homoiodoris ''Homoiodoris'' is a genus of sea slugs, dorid nudibranchs, shell-less marine gastropod mollusks in the family Dorididae. This is a nomen dubium In binomial nomenclature, a ''nomen dubium'' (Latin for "doubtful name", plural ''nomina dubia'') ...'' Bergh, 1904 : now in the family Dorididae References * * Powell A. W. B., ''New Zealand Mollusca'', William Collins Publishers Ltd, Auckland, New Zealand 1979 DiscoverLifeThe Seaslug Forum : species list Obsolete gastropod taxa {{Heterobranchia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomy (biology)
In biology, taxonomy () is the scientific study of naming, defining ( circumscribing) and classifying groups of biological organisms based on shared characteristics. Organisms are grouped into taxa (singular: taxon) and these groups are given a taxonomic rank; groups of a given rank can be aggregated to form a more inclusive group of higher rank, thus creating a taxonomic hierarchy. The principal ranks in modern use are domain, kingdom, phylum (''division'' is sometimes used in botany in place of ''phylum''), class, order, family, genus, and species. The Swedish botanist Carl Linnaeus is regarded as the founder of the current system of taxonomy, as he developed a ranked system known as Linnaean taxonomy for categorizing organisms and binomial nomenclature for naming organisms. With advances in the theory, data and analytical technology of biological systematics, the Linnaean system has transformed into a system of modern biological classification intended to reflect the evolu ... [...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] |
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. Distribut ... [...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] |
Order (biology)
Order ( la, wikt:ordo#Latin, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between Family_(biology), family and Class_(biology), class. In biological classification, the order is a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes. An immediately higher rank, superorder, is sometimes added directly above order, with suborder directly beneath order. An order can also be defined as a group of related families. What does and does not belong to each order is determined by a taxonomist, as is whether a particular order should be recognized at all. Often there is no exact agreement, with different taxonomists each taking a different position. There are no hard rules that a taxonomist needs to follow in describing or recognizing an order. Some taxa are accepted almost universally, while others are recognized only rarely. The name of an order is usually written with a capital letter. Fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opisthobranchia
Opisthobranchs () is now an informal name for a large and diverse group of specialized complex gastropods which used to be united in the subclass Opisthobranchia. That taxon is no longer considered to represent a monophyletic grouping. Euopisthobranchia is a taxon containing a revised collection of opisthobranchs, and that taxon is considered monophyletic. Euopisthobranchia does not include some "traditional" opisthobranchs such as the Sacoglossa and the Acochlidiacea. The subclass Heterobranchia now contains all the species which used to be assigned to Opisthobranchia, plus all the species in the Pulmonata. The subclass Opisthobranchia included species in the order Cephalaspidea (bubble shells and headshield slugs), the sacoglossans, anaspidean sea hares, pelagic sea angels, sea butterflies, and many families of the Nudibranchia. ''Opisthobranch'' means "gills behind" (and to the right) of the heart. In contrast, ''Prosobranch'' means ''gills in front'' (of the heart). Opist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dendrodoris
''Dendrodoris'' is a genus of nudibranchs, marine gastropod molluscs in the family Dendrodorididae.Bouchet, P.; Gofas, S. (2012). Dendrodoris Ehrenberg, 1831. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=137883 on 2012-06-09 Species Species so far described in this genus include: * '' Dendrodoris albobrunnea'' Allan, 1933 * '' Dendrodoris albopurpura'' Burn, 1957 * '' Dendrodoris angolensis'' Valdés & Ortea, 1996 * '' Dendrodoris arborescens'' (Collingwood, 1881) * '' Dendrodoris areolata'' (Alder & Hancock, 1864) * '' Dendrodoris atromaculata'' (Alder & Hancock, 1864) * '' Dendrodoris aurea'' (Quoy & Gaimard, 1832) * '' Dendrodoris azineae'' Behrens & Valdes, 2004 * '' Dendrodris behrensi'' Millen & Bertsch, 2005Millen S. V. & Bertsch H. (2005). "Two New Species of Porostome Nudibranchs (Family Dendrodorididae) from the Coast of California (USA) and Baja Californica (Mexico)". ''Proceedings of the California Academ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dendrodorididae
Dendrodorididae is a taxonomic family of sea slugs, dorid nudibranchs, marine gastropod molluscs in the Superfamily Phyllidioidea. Genera A maximum-parsimony analysis of the nucleotide sequence of the 16S mtDNA gene In biology, the word gene (from , ; "... Wilhelm Johannsen coined the word gene to describe the Mendelian units of heredity..." meaning ''generation'' or ''birth'' or ''gender'') can have several different meanings. The Mendelian gene is a b ..., performed in 2003, has shown that the family Dendrodoridae is paraphyletic. Genera in the family Dendrodorididae presently include: * '' Dendrodoris'' Ehrenberg, 1831 * '' Doriopsilla'' Bergh, 1880 References * * Powell A. W. B., ''New Zealand Mollusca'', William Collins Publishers Ltd, Auckland, New Zealand 1979 {{heterobranchia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doriopsilla
''Doriopsilla'' is a genus of sea slugs, dorid nudibranchs, shell-less marine gastropod molluscs in the family Dendrodorididae.Valdés Á. & Gosliner T.M. (1999). ''Phylogeny of the radula-less dorids (Mollusca, Nudibranchia), with the description of a new genus and a new family''. Zoologica Scripta 28: 315-360 Description ''Doriopsilla'' and ''Dendrodoris'' are genera which have frequently been confused, partly because both lack a radula. They feed by dissolving their sponge food externally, using enzymes, and then ingesting sponge cells without the sponge skeleton. They share this loss of the radula and method of feeding with the Phyllidiidae but look more like other Dorid nudibranchs in having a rosette of gills surrounding a dorsal anus, whilst Phyllidiidae have the gills located beneath the edge of the mantle. Species Species so far described in this genus include:Bouchet, P.; Gofas, S. (2015)''Doriopsilla'' Bergh, 1880.In: MolluscaBase (2016). Accessed through: World Regi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Homoiodoris
''Homoiodoris'' is a genus of sea slugs, dorid nudibranchs, shell-less marine gastropod mollusks in the family Dorididae. This is a nomen dubium In binomial nomenclature, a ''nomen dubium'' (Latin for "doubtful name", plural ''nomina dubia'') is a scientific name that is of unknown or doubtful application. Zoology In case of a ''nomen dubium'' it may be impossible to determine whether a s .... Species Species in the genus ''Homoiodoris'' include:MolluscaBase (2018)''Homoiodoris'' Bergh, 1882.Accessed on 2019-02-01. * '' Homoiodoris japonica'' Bergh, 1882 References Dorididae {{Dorididae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
