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Morchellium Leviventer
''Morchellium'' is a genus of colonial sea squirts, tunicates in the family Polyclinidae. Species The World Register of Marine Species lists the following species: *''Morchellium albidum'' Kott, 1992 *'' Morchellium appendiculatum'' (Michaelsen, 1923) *''Morchellium argus ''Morchellium argus'', the red-flake ascidian, is a species of colonial sea squirt, a tunicate in the family Polyclinidae. It is native to shallow water in the northeastern Atlantic Ocean, especially round the coasts of Britain. Description ...'' (Milne-Edwards, 1841) *'' Morchellium giardi'' Herdman, 1886 *'' Morchellium leviventer'' (Monniot & Gaill, 1978) *'' Morchellium pannosum'' Kott, 1992 References {{Taxonbar, from=Q4915608 Enterogona Tunicate genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morchellium Argus
''Morchellium argus'', the red-flake ascidian, is a species of colonial sea squirt, a tunicate in the family Polyclinidae. It is native to shallow water in the northeastern Atlantic Ocean, especially round the coasts of Britain. Description A colony of ''Morchellium argus'' consists of a clump of vase-shaped zooids up to long, each supported by a conical stalk about wide, to which sand adheres. Each zooid has a buccal siphon with eight flaps and a tongue-like process underneath. This siphon opens into a large pharynx through which water is drawn into the interior, but the colony has a single exit siphon through which the water from several zooids is expelled. The zooids are translucent white, pale pink or red and there are four small red spots at the entrance to the pharynx, which distinguishes this tunicate from similar species. Distribution and habitat ''Morchellium argus'' is native to the northeastern Atlantic Ocean. It is common round the coasts of Britain, as far no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colony (biology)
In biology, a colony is composed of two or more conspecific individuals living in close association with, or connected to, one another. This association is usually for mutual benefit such as stronger defense or the ability to attack bigger prey. Colonies can form in various shapes and ways depending on the organism involved. For instance, the bacterial colony is a cluster of identical cells (clones). These colonies often form and grow on the surface of (or within) a solid medium, usually derived from a single parent cell. Colonies, in the context of development, may be composed of two or more unitary (or solitary) organisms or be modular organisms. Unitary organisms have determinate development (set life stages) from zygote to adult form and individuals or groups of individuals (colonies) are visually distinct. Modular organisms have indeterminate growth forms (life stages not set) through repeated iteration of genetically identical modules (or individuals), and it can be diffic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morchellium Leviventer
''Morchellium'' is a genus of colonial sea squirts, tunicates in the family Polyclinidae. Species The World Register of Marine Species lists the following species: *''Morchellium albidum'' Kott, 1992 *'' Morchellium appendiculatum'' (Michaelsen, 1923) *''Morchellium argus ''Morchellium argus'', the red-flake ascidian, is a species of colonial sea squirt, a tunicate in the family Polyclinidae. It is native to shallow water in the northeastern Atlantic Ocean, especially round the coasts of Britain. Description ...'' (Milne-Edwards, 1841) *'' Morchellium giardi'' Herdman, 1886 *'' Morchellium leviventer'' (Monniot & Gaill, 1978) *'' Morchellium pannosum'' Kott, 1992 References {{Taxonbar, from=Q4915608 Enterogona Tunicate genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morchellium Giardi
''Morchellium'' is a genus of colonial sea squirts, tunicates in the family Polyclinidae. Species The World Register of Marine Species lists the following species: *''Morchellium albidum'' Kott, 1992 *'' Morchellium appendiculatum'' (Michaelsen, 1923) *''Morchellium argus'' (Milne-Edwards, 1841) *'' Morchellium giardi'' Herdman, 1886 *''Morchellium leviventer ''Morchellium'' is a genus of colonial sea squirts, tunicates in the family Polyclinidae. Species The World Register of Marine Species lists the following species: *''Morchellium albidum'' Kott, 1992 *'' Morchellium appendiculatum'' (Micha ...'' (Monniot & Gaill, 1978) *'' Morchellium pannosum'' Kott, 1992 References {{Taxonbar, from=Q4915608 Enterogona Tunicate genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morchellium Appendiculatum
''Morchellium'' is a genus of colonial sea squirts, tunicates in the family Polyclinidae. Species The World Register of Marine Species lists the following species: *''Morchellium albidum'' Kott, 1992 *'' Morchellium appendiculatum'' (Michaelsen, 1923) *''Morchellium argus'' (Milne-Edwards, 1841) *''Morchellium giardi'' Herdman, 1886 *''Morchellium leviventer ''Morchellium'' is a genus of colonial sea squirts, tunicates in the family Polyclinidae. Species The World Register of Marine Species lists the following species: *''Morchellium albidum'' Kott, 1992 *'' Morchellium appendiculatum'' (Micha ...'' (Monniot & Gaill, 1978) *'' Morchellium pannosum'' Kott, 1992 References {{Taxonbar, from=Q4915608 Enterogona Tunicate genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morchellium Albidum
''Morchellium'' is a genus of colonial sea squirts, tunicates in the family Polyclinidae. Species The World Register of Marine Species lists the following species: *'' Morchellium albidum'' Kott, 1992 *'' Morchellium appendiculatum'' (Michaelsen, 1923) *''Morchellium argus ''Morchellium argus'', the red-flake ascidian, is a species of colonial sea squirt, a tunicate in the family Polyclinidae. It is native to shallow water in the northeastern Atlantic Ocean, especially round the coasts of Britain. Description ...'' (Milne-Edwards, 1841) *'' Morchellium giardi'' Herdman, 1886 *'' Morchellium leviventer'' (Monniot & Gaill, 1978) *'' Morchellium pannosum'' Kott, 1992 References {{Taxonbar, from=Q4915608 Enterogona Tunicate genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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. Content The content of the registry is edited and maintained by scientific specialists on each group of organism. These taxonomists control the quality of the information, which is gathered from the primary scientific literature as well as from some external regional and taxon-specific databases. WoRMS maintains valid names of all marine organisms, but also provides information on synonyms and invalid names. It is an ongoing task to maintain the registry, since new species are constantly being discovered and described by scientists; in addition, the nomenclature and taxonomy of existing species is often corrected or changed as new research is constantly being published. Subsets of WoRMS content are made available, and can have separate badging and their own home/launch pages, as "subregisters", such as the ''World List of ... [...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] |
Tunicates
A tunicate is a marine invertebrate animal, a member of the subphylum Tunicata (). It is part of the Chordata, a phylum which includes all animals with dorsal nerve cords and notochords (including vertebrates). The subphylum was at one time called Urochordata, and the term urochordates is still sometimes used for these animals. They are the only chordates that have lost their myomeric segmentation, with the possible exception of the 'seriation of the gill slits'. Some tunicates live as solitary individuals, but others replicate by budding and become colonies, each unit being known as a zooid. They are marine filter feeders with a water-filled, sac-like body structure and two tubular openings, known as siphons, through which they draw in and expel water. During their respiration and feeding, they take in water through the incurrent (or inhalant) siphon and expel the filtered water through the excurrent (or exhalant) siphon. Most adult tunicates are sessile, immobile and perman ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), 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 taxonomy (biology), 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfred Giard
Alfred Mathieu Giard (8 August 1846 – 8 August 1908) was a French zoologist born in Valenciennes. Biography In 1867 he began his studies of natural sciences at the École Normale Supérieure, followed by work as ''préparateur de zoologie'' at the laboratory of Henri de Lacaze-Duthiers (1821–1901) in Paris. In 1872 he defended his doctoral thesis with a study on compound ascidians titled "''Recherches sur les ascidies composées ou synascidies''". From 1873 to 1882, he was ''professeur suppléant'' of natural history at the faculty of sciences in Lille, and in the meantime, was also affiliated with the Institut industriel du Nord. In 1874 he founded a biological station at Wimereux in order to familiarize his students to marine and terrestrial organisms. At Lille, he is credited for putting together an excellent school of zoology. In 1887 he became a lecturer at the École Normale Supérieure, and from 1888 until his death, he was a professor at the faculty of sciences in P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
