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Phragmophora
Phragmophora is an order of sagittoideans in the phylum Chaetognatha. Families *Eukrohniidae Tokioka, 1965 *Heterokrohniidae Casanova, 1985Casanova, J. (1985). Description de l'appareil génital primitif du genre ''Heterokrohnia'' et nouvelle classification des Chaetognathes. ''Comptes Rendus Hebdomadaires des Séances de l'Académie des Sciences de Paris'', 301(8), 397–402. *Krohnittellidae Bieri, 1989Bieri, R. (1989). Krohnittellidae and Bathybelidae, new families in the phylum Chaetognatha; the rejection of the family Tokiokaispadellidae and the genera ''Tokiokaisapadella'', ''Zahonya'', and ''Aberrospadella''. ''Proceedings of the Biological Society of Washington'', 102(4), 973–976. *Spadellidae Tokioka, 1965 See also *Taxonomy of invertebrates (Brusca & Brusca, 2003) The biological systematics and taxonomy of invertebrates as proposed by Richard C. Brusca and Gary J. Brusca in 2003 is a system of classification of invertebrates, as a way to classify animals without ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sagittoidea
The Chaetognatha or chaetognaths (meaning ''bristle-jaws'') are a phylum of predatory marine worms that are a major component of plankton worldwide. Commonly known as arrow worms, about 20% of the known Chaetognatha species are benthic zone, benthic, and can attach to algae and rocks. They are found in all marine waters, from surface tropical waters and shallow tide pools to the deep sea and polar regions. Most chaetognaths are transparent and are torpedo shaped, but some deep-sea species are orange. They range in size from . There are more than 120 modern species assigned to over 20 genera. Despite the limited diversity of species, the number of individuals is large. Arrow worms are usually considered a type of protostome that do not belong to either Ecdysozoa or Lophotrochozoa. Anatomy Chaetognaths are transparent or translucent dart-shaped animals covered by a cuticle. The body is divided into a distinct head, trunk, and tail. There are between four and fourteen hooked, gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chaetognatha
The Chaetognatha or chaetognaths (meaning ''bristle-jaws'') are a phylum of predatory marine worms that are a major component of plankton worldwide. Commonly known as arrow worms, about 20% of the known Chaetognatha species are benthic, and can attach to algae and rocks. They are found in all marine waters, from surface tropical waters and shallow tide pools to the deep sea and polar regions. Most chaetognaths are transparent and are torpedo shaped, but some deep-sea species are orange. They range in size from . There are more than 120 modern species assigned to over 20 genera. Despite the limited diversity of species, the number of individuals is large. Arrow worms are usually considered a type of protostome that do not belong to either Ecdysozoa or Lophotrochozoa. Anatomy Chaetognaths are transparent or translucent dart-shaped animals covered by a cuticle. The body is divided into a distinct head, trunk, and tail. There are between four and fourteen hooked, grasping spines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eukrohniidae
Eukrohniidae is a family of sagittoideans in the order Phragmophora. It consists of a single genus, ''Eukrohnia'' von Ritter-Záhony, 1909.von Ritter-Za'hony, R. (1909). Die Chaetognathen der Gazelle-Expedition. ''Zoologischer Anzeiger'', 34, 787–793. History The first species of Eukrohniidae, ''Eukrohnia hamata'', was identified by Karl Möbius in 1875. The genus was named ''Eukrohnia'' by R. von Ritter-Záhony in 1909 after August David Krohn. The family was named ''Eukrohniidae'' by Takasi Tokioka in 1965. One of the species, ''Eukrohnia fowleri'', is bioluminescent.Thuesen, E. V., Goetz, F. E. & Haddock, S. H. (2010). Bioluminescent organs of two deep-sea arrow worms, ''Eukrohnia fowleri'' and ''Caecosagitta macrocephala'', with further observations on bioluminescence in chaetognaths. ''Biological Bulletin'', 219(2), 100–111. Species *''Eukrohnia bathyantarctica'' David, 1958David, P. (1958). A new species of ''Eukrohnia'' from the southern Ocean with a note on fertil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heterokrohniidae
Heterokrohniidae is a family of sagittoideans in the order Phragmophora. Genera *''Archeterokrohnia'' Casanova, 1986 *''Heterokrohnia'' von Ritter-Záhony, 1911von Ritter-Záhony, R. (1911). Revision der Chatognathen. ''Deutsche Südpolar Expedition, 1901–1903'', 13, 1–71. *''Xenokrohnia ''Xenokrohnia'' is a genus of chaetognaths in the family Heterokrohniidae. It consists of one species, ''Xenokrohnia sorbei'' Casanova, 1993, which lives in a marine environment. The initial discovery was made from six specimens found in a deep- ...'' Casanova, 1993Casanova, J. (1992). A new genus and species of deep-sea chaetognath from the Bay of Biscal with a strange ventral secretory gland. ''Journal of Natural History'', 27(2), 445–455. References Chaetognatha Protostome families {{Chaetognatha-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Krohnittellidae
Krohnittellidae is a family of sagittoideans in the order Order, ORDER or Orders may refer to: * Categorization, the process in which ideas and objects are recognized, differentiated, and understood * Heterarchy, a system of organization wherein the elements have the potential to be ranked a number of d ... Phragmophora. It consists of one genus, ''Krohnittella'' Germain & Joubin, 1912.Germain, L. & Joubin, L. (1912). Note sur quelques Chétognaths nouveauz des croisieres de S. A. S. le Prince de Monaco. ''Bulletin de l'Institut Océanographique'', 228, 1–15. Species *'' Krohnittella boureei'' Germain & Joubin, 1912 *'' Krohnittella tokiokai'' Bieri, 1974Bieri, R. (1974). First record of the chaetognath genus ''Krohnittella'' in the Pacific and description of a new species. ''Wasmann Journal of Biology'', 32, 297–301. References Chaetognatha Protostome genera {{Chaetognatha-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spadellidae
Spadellidae is a family of sagittoideans in the order Phragmophora. Spadellidae prey on plankton Plankton are the diverse collection of organisms found in water (or air) that are unable to propel themselves against a current (or wind). The individual organisms constituting plankton are called plankters. In the ocean, they provide a crucia ... and commonly reside in the epipelagic zone of the ocean. Genera *'' Bathyspadella'' Tokioka, 1939Tokioka, T. (1939). Three new chaetognaths from Japanese waters. ''Memoirs of the Imperial Marine Observatory'', 7, 129–139. *'' Calispadella'' Casanova & Moreau, 2005Casanova, J. Moreau, X. (2005). ''Calispadella alata'' n. gen., n. sp., the first chaetognath recorded from a hydrothermal vent site (Mid-Atlantic Ridge). ''Journal of Plankton Research'', 27(2), 221–225. *'' Hemispadella'' Casanova, 1996Casanova, J. (1996). A new genus and species of deep benthic chaetognath from the Atlantic: a probable link between the families Heterok ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomy Of Invertebrates (Brusca & Brusca, 2003)
The biological systematics and taxonomy of invertebrates as proposed by Richard C. Brusca and Gary J. Brusca in 2003 is a system of classification of invertebrates, as a way to classify animals without backbones. Prokaryotes *Kingdom *Kingdom Eukaryotes (Eukaryota, or Eukarya) *Kingdom *Kingdom (= Metaphyta) *Kingdom ::*Phylum ::*Phylum ::* ::::*Phylum ::::*Phylum ::::*Phylum ::*Phylum ::*Phylum ::*Phylum ::*Phylum ::*Phylum ::*Phylum ::*Phylum ::*Phylum ::*Phylum ::*Phylum ::*Phylum ::*Phylum ::*Incertae sedis: Genus Kingdom Animalia (Metazoa) Parazoa =Phylum Porifera= *Phylum Porifera ::*Class Calcarea ::::*Subclass Calcinea ::::*Subclass Calcaronea ::*Class Hexactinellida ::::*Subclass Amphidiscophora ::::*Subclass Hexasterophora ::*Class Demospongiae ::::*Subclass Homoscleromorpha ::::*Subclass Tetractinomorpha ::::*Subclass Ceractinomorpha Mesozoa =Phylum Placozoa= *Phylum Placozoa ::*''Trichoplax adhaerens'' =Phylum Monoblastozoa= *Phyl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spadella Cephaloptera
''Spadella'' is a genus of worms belonging to the family Spadellidae. The species of this genus are found in Europe, Northern America, Pacific Ocean. Species Species: *''Spadella angulata'' *''Spadella antarctica'' *''Spadella birostrata ''Spadella'' is a genus of worms belonging to the family Spadellidae. The species of this genus are found in Europe, Northern America, Pacific Ocean. Species Species: *''Spadella angulata'' *''Spadella antarctica ''Spadella'' is a genus of ...'' References {{Taxonbar, from=Q2330212 Chaetognatha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Takasi Tokioka
was a Japanese zoologist. He published over 200 scientific articles on marine animals such as chaetognaths, ctenophores, and tunicates. He was Professor of Zoology at Kyoto University working at the Seto Marine Biological Laboratory in Shirahama, Japan. From 1975 to 1977, he was the Director of SMBL. Eponymous species At least a dozen species are named in his honor,Biographical Etymology of Marine Organism Names http://www.tmbl.gu.se/libdb/taxon/personetymol/petymol.tu.html including these below. *''Acartia tokiokai'' Mori, 1942 - Copepoda *''Atlanta tokiokai'' van der Spoel & Troost, 1972 - Heteropoda *''Bolivina tokiokai'' Uchio, 1962 - Formanifera *''Eudistoma tokiokai'' Nishikawa, 1990 - Ascidiacea *''Euchromadora tokiokai'' Wieser, 1955 - Nematoda *''Krohnittella tokiokai'' Bieri, 1974 - Chaetognatha *''Ophiocentrus tokiokai'' Irimura, 1981 - Ophiuroidea *''Polycarpa tokiokai'' Monniot & Monniot, 1996 - Ascidiacea *''Styela tokiokai'' Nishikawa, 1991 - Ascidiacea Ascid ... [...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] |
Taxonomy Of The Animals (Hutchins Et Al
Taxonomy is the practice and science of categorization or classification. A taxonomy (or taxonomical classification) is a scheme of classification, especially a hierarchical classification, in which things are organized into groups or types. Among other things, a taxonomy can be used to organize and index knowledge (stored as documents, articles, videos, etc.), such as in the form of a library classification system, or a search engine taxonomy, so that users can more easily find the information they are searching for. Many taxonomies are hierarchies (and thus, have an intrinsic tree structure), but not all are. Originally, taxonomy referred only to the categorisation of organisms or a particular categorisation of organisms. In a wider, more general sense, it may refer to a categorisation of things or concepts, as well as to the principles underlying such a categorisation. Taxonomy organizes taxonomic units known as "taxa" (singular "taxon")." Taxonomy is different from me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protostome Orders
Protostomia () is the clade of animals once thought to be characterized by the formation of the organism's mouth before its anus during embryonic development. This nature has since been discovered to be extremely variable among Protostomia's members, although the reverse is typically true of its sister clade, Deuterostomia. Well known examples of protostomes are arthropods, molluscs, annelids, flatworms and nematodes. They are also called schizocoelomates since schizocoely typically occurs in them. Together with the Deuterostomia and Xenacoelomorpha, these form the clade Bilateria, animals with bilateral symmetry, anteroposterior axis and three germ layers. Protostomy In animals at least as complex as earthworms, the first phase in gut development involves the embryo forming a dent on one side (the blastopore) which deepens to become its digestive tube (the archenteron). In the sister-clade, the deuterostomes (), the original dent becomes the anus while the gut eventually tun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
