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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, performed in 2003, has shown that the family Dendrodoridae is paraphyletic Paraphyly is a taxonomic term describing a grouping that consists of the grouping's last common ancestor and some but not all of its descendant lineages. The grouping is said to be paraphyletic ''with respect to'' the excluded subgroups. In co .... 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] |
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 Acade ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doriopsilla Albopunctata
''Doriopsilla albopunctata'', the white-spotted sea goddess, is a species of dorid nudibranch, a colorful sea slug, in the family Dendrodorididae. It is native to the Pacific Coast of North America, from Mendocino County, California south, possibly to Baja California Peninsula, Mexico. There are five other species that are quite similar to ''Doriopsilla albopunctata'' and can be confused with it: '' Doriopsilla bertschi'' (Hoover, Lindsay, Goddard & Valdés, 2015), '' Doriopsilla davebehrensi'' (Hoover, Lindsay, Goddard & Valdés, 2015), '' Doriopsilla fulva'' (MacFarland, 1905), '' Doriopsilla gemela'' (Gosliner, Schaefer & Millen, 1999), and '' Baptodoris mimetica'' ( Gosliner, 1991).Hoover C., Lindsay T., Goddard J.H.R. & Valdés A. (2015)''Seeing double: pseudocryptic diversity in the ''Doriopsilla albopunctata–Doriopsilla gemela'' species complex of the north-eastern Pacific.''Zoologica Scripta. 44: 612-631. Distribution This species is found from Mendocino to San Diego, ... [...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 Reg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phyllidioidea
Phyllidioidea is a taxonomic superfamily of colorful sea slugs, dorid nudibranchs, marine gastropod mollusks. Taxonomy *Family Phyllidiidae Rafinesque, 1814 *Family Dendrodorididae O'Donoghue, 1924 *Family Mandeliidae Mandela's nudibranch, ''Mandelia mirocornata'', is a species of sea slug, a dorid nudibranch. It is a marine gastropod mollusc, the only member of the genus ''Mandelia'' and the family Mandeliidae. The genus and family name honor Nelson Mande ... Valdés & Gosliner, 1999 References Nudipleura {{Heterobranchia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Slug
Sea slug is a common name for some Marine biology, marine invertebrates with varying levels of resemblance to terrestrial Slug, slugs. Most creatures known as sea slugs are gastropods, i.e. they are Sea snail, sea snails (marine gastropod mollusks) that, over evolutionary time, have either entirely lost their shells or have seemingly lost their shells due to having a significantly reduced or internal shell. The name "sea slug" is often applied to Nudibranch, nudibranchs and a paraphyletic set of other marine gastropods without apparent Gastropod shell, shells. Sea slugs have an enormous variation in body shape, color, and size. Most are partially translucent. The often bright colors of Coral reef, reef-dwelling species imply that these animals are under constant threat of predators. Still, the color can warn other animals of the sea slug's toxic stinging cells (nematocysts) or offensive taste. Like all Gastropod, gastropods, they have small, razor-sharp teeth called Radula, rad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gene
In biology, the word gene has two meanings. The Mendelian gene is a basic unit of heredity. The molecular gene is a sequence of nucleotides in DNA that is transcribed to produce a functional RNA. There are two types of molecular genes: protein-coding genes and non-coding genes. During gene expression (the synthesis of Gene product, RNA or protein from a gene), DNA is first transcription (biology), copied into RNA. RNA can be non-coding RNA, directly functional or be the intermediate protein biosynthesis, template for the synthesis of a protein. The transmission of genes to an organism's offspring, is the basis of the inheritance of phenotypic traits from one generation to the next. These genes make up different DNA sequences, together called a genotype, that is specific to every given individual, within the gene pool of the population (biology), population of a given species. The genotype, along with environmental and developmental factors, ultimately determines the phenotype ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthur William Baden Powell
Arthur William Baden Powell (4 April 1901 – 1 July 1987) was a New Zealand malacologist, naturalist and palaeontologist, a major influence in the study and classification of New Zealand molluscs through much of the 20th century. He was known to his friends and family by his third name, "Baden". Biography Early life The name Baden had been a given name in a Powell family since 1731, when Susannah Powell née Thistlethwayte (1696–1762) gave to her child (1731–1792) the maiden name of her mother, Susannah Baden (1663–1692). The name Baden, particularly when associated with the surname Powell, became famous in 1900–1901, the year Arthur William Baden Powell was born, because of the siege of Mafeking, the most famous British action in the Second Boer War, which turned the British commander of the besieged, Robert Baden-Powell, into a national hero. Throughout the British Empire, babies were named after him. No family connection has yet been established between Ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rudolph Bergh
Rudolph Bergh (15 October 1824 – 20 July 1909), full name Ludvig Sophus Rudolph Bergh, was a Danish physician and malacologist. He worked in Copenhagen. As a doctor his speciality was sexually transmitted diseases. In Copenhagen a hospital and a street are named after him. Bergh was also an active malacologist, i.e. a zoologist who studies molluscs, in particular the nudibranchs, shell-less marine gastropods. He had well over 90 publications in this field and took part in a scientific expedition to Indonesia. He named and described numerous species of nudibranchs. Biography Rudolph Bergh was born in Copenhagen. His father was chief physician in the army Ludvig Anton Berg (1793–1853). His mother was Anne Sophie Kirstine (maiden name Pedersen). Bergh graduated from the Det von Westenske Institut in 1842, and received his medical degree in 1849. Dr. Rudolph Bergh became an attending physician at what was then Almindeligt Hospital, the general hospital in Amaliegade, C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomy (biology)
In biology, taxonomy () is the science, scientific study of naming, defining (Circumscription (taxonomy), circumscribing) and classifying groups of biological organisms based on shared characteristics. Organisms are grouped into taxon, 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 (biology), domain, kingdom (biology), kingdom, phylum (''division'' is sometimes used in botany in place of ''phylum''), class (biology), class, order (biology), order, family (biology), family, genus, and species. The Swedish botanist Carl Linnaeus is regarded as the founder of the current system of taxonomy, having developed a ranked system known as Linnaean taxonomy for categorizing organisms. With advances in the theory, data and analytical technology of biological systematics, the Linnaean system has transfo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christian Gottfried Ehrenberg
Christian Gottfried Ehrenberg (19 April 1795 – 27 June 1876) was a German Natural history, naturalist, zoologist, Botany, botanist, comparative anatomist, geologist, and microscopy, microscopist. He is considered to be one of the most famous and productive scientists of his time. Early collections The son of a judge, Christian Gottfried Ehrenberg was born in Delitzsch, near Leipzig. He first studied theology at the University of Leipzig, then medicine and natural sciences in Humboldt University of Berlin, Berlin and became a friend of the famous List of explorers, explorer Alexander von Humboldt. In 1818, he completed his doctoral dissertation on fungi, ''Sylvae mycologicae Berolinenses.'' In 1820–1825, on a scientific expedition to the Middle East with his friend Wilhelm Hemprich, he collected thousands of specimens of plants and animals. He investigated parts of Egypt, the Libyan Desert, the Nile, Nile valley and the northern coasts of the Red Sea, where he made a special ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family (, : ) 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". The delineation of what constitutes a family—or whether a described family should be acknowledged—is established and decided upon by active taxonomists. There are not strict regulations for outlining or acknowledging a family, yet in the realm of plants, these classifications often rely on both the vegetative and reproductive characteristics of plant species. Taxonomists frequently hold varying perspectives on these descriptions, leading to a lack of widespread consensus within the scientific community ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paraphyletic
Paraphyly is a taxonomic term describing a grouping that consists of the grouping's last common ancestor and some but not all of its descendant lineages. The grouping is said to be paraphyletic ''with respect to'' the excluded subgroups. In contrast, a monophyletic grouping (a clade) includes a common ancestor and ''all'' of its descendants. The terms are commonly used in phylogenetics (a subfield of biology) and in the tree model of historical linguistics. Paraphyletic groups are identified by a combination of synapomorphies and symplesiomorphies. If many subgroups are missing from the named group, it is said to be polyparaphyletic. The term received currency during the debates of the 1960s and 1970s accompanying the rise of cladistics, having been coined by zoologist Willi Hennig to apply to well-known taxa like Reptilia (reptiles), which is paraphyletic with respect to birds. Reptilia contains the last common ancestor of reptiles and all descendants of that ancestor exc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
