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Coolia Tropicalis
''Coolia tropicalis'' is a species of dinoflagellates, first found in Belize. Its cell size ranges from 23–40 μm long, 25–39 μm wide and 35–65 μm in dorsoventral diameter. Cells are spherical, smooth and covered with scattered round pores. Its epitheca is smaller than its hypotheca Hypothec (; german: Hypothek, french: hypothèque, pl, hipoteka, from Lat. ''hypotheca'', from Gk. : hypothēkē), sometimes tacit hypothec, is a term used in civil law systems (e.g. law of entire Continental Europe except Gibraltar) or mixed .... Its apical pore is straight, 7 μm long and situated in the apical plate complex. Cells of ''C. tropicalis'' are distinguished from '' C. monotis'' by the wedge-shaped plate 1′, a four-sided 3’ plate, and a short apical pore. References Further reading * External links * Protists described in 1995 Dinoflagellate species Gonyaulacales {{dinoflagellate-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dinoflagellate
The dinoflagellates (Greek δῖνος ''dinos'' "whirling" and Latin ''flagellum'' "whip, scourge") are a monophyletic group of single-celled eukaryotes constituting the phylum Dinoflagellata and are usually considered algae. Dinoflagellates are mostly marine plankton, but they also are common in freshwater habitats. Their populations vary with sea surface temperature, salinity, and depth. Many dinoflagellates are photosynthetic, but a large fraction of these are in fact mixotrophic, combining photosynthesis with ingestion of prey (phagotrophy and myzocytosis). In terms of number of species, dinoflagellates are one of the largest groups of marine eukaryotes, although substantially smaller than diatoms. Some species are endosymbionts of marine animals and play an important part in the biology of coral reefs. Other dinoflagellates are unpigmented predators on other protozoa, and a few forms are parasitic (for example, ''Oodinium'' and ''Pfiesteria''). Some dinoflagellates pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micrometre
The micrometre ( international spelling as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American spelling), also commonly known as a micron, is a unit of length in the International System of Units (SI) equalling (SI standard prefix "micro-" = ); that is, one millionth of a metre (or one thousandth of a millimetre, , or about ). The nearest smaller common SI unit is the nanometre, equivalent to one thousandth of a micrometre, one millionth of a millimetre or one billionth of a metre (). The micrometre is a common unit of measurement for wavelengths of infrared radiation as well as sizes of biological cells and bacteria, and for grading wool by the diameter of the fibres. The width of a single human hair ranges from approximately 20 to . The longest human chromosome, chromosome 1, is approximately in length. Examples Between 1 μm and 10 μm: * 1–10 μm – length of a typical bacterium * 3–8 μm – width of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epitheca
''Epitheca'' is a genus of dragonflies in the family Corduliidae The Corduliidae, also knowns as the emeralds, emerald dragonflies or green-eyed skimmers, is a family of dragonflies. These dragonflies are usually black or dark brown with areas of metallic green or yellow, and most of them have large, emerald-gr .... They are commonly known as baskettails. Baskettails' distinction is the specially adapted, upturned abdomen tip of the females which allows them to carry their egg masses in a small, orange-tinted globule. Some authorities spin off the North American baskettails into two new genera, ''Epicordulia'' and ''Tetragoneuria'', but this has not gained widespread acceptance and most references place them under this genus. Species The genus contains the following species: *'' Epitheca bimaculata'' – Eurasian baskettail *'' Epitheca canis'' – beaverpond baskettail *'' Epitheca costalis'' – slender baskettail or stripe-winged baskettail *'' Epitheca cynosura'' â ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypotheca
Hypothec (; german: Hypothek, french: hypothèque, pl, hipoteka, from Lat. ''hypotheca'', from Gk. : hypothēkē), sometimes tacit hypothec, is a term used in civil law systems (e.g. law of entire Continental Europe except Gibraltar) or mixed legal systems (e.g. Scots law, South African law) to refer to a registered non- possessory real security over real estate, but under some jurisdictions it may sometimes also denote security on other collaterals such as securities, intellectual property rights or corporeal movable property, either ships only (ship hypothec) as opposed to other movables covered by a different type of right (pledge) in the legal systems of some countries, or any movables in legal systems of other countries. The common law has two equivalents to the term, namely mortgage and non-possessory lien. Originating in Roman law, a ''hypotheca'' was essentially a non-possessory pledge over a person's entire estate, but during the Renaissance the device was revived by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coolia Monotis
''Coolia'' is a marine dinoflagellate genus in the family Ostreopsidaceae. It was first described by Meunier in 1919. There are currently seven identified species distributed globally in tropical and temperate coastal waters. ''Coolia'' is a benthic or epiphytic type dinoflagellate: it can be found adhered to sediment or other organisms but it is not limited to these substrates. It can also be found in a freely motile form in the water column. The life cycle of ''Coolia'' involves an asexual stage where the cell divides by binary fission and a sexual stage where cysts are produced. Some of the species, for example, ''Coolia tropicalis'' and ''Coolia malayensis'', produce toxins that can potentially cause shellfish poisoning in humans. Etymology The genus was named after a Pharmacist, M. Cool, from Nieupoort, Belgium, where the first species of the genus ''Coolia'', ''Coolia monotis'' was originally discovered in the oyster beds. Taxonomy ''Coolia'' was first described by Alphons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protists Described In 1995
A protist () is any eukaryotic organism (that is, an organism whose cells contain a cell nucleus) that is not an animal, plant, or fungus. While it is likely that protists share a common ancestor (the last eukaryotic common ancestor), the exclusion of other eukaryotes means that protists do not form a natural group, or clade. Therefore, some protists may be more closely related to animals, plants, or fungi than they are to other protists. However, like the groups ''algae'', ''invertebrates'', and ''protozoans'', the biological category ''protist'' is used for convenience. Others classify any unicellular eukaryotic microorganism as a protist. The study of protists is termed protistology. History The classification of a third kingdom separate from animals and plants was first proposed by John Hogg in 1860 as the kingdom Protoctista; in 1866 Ernst Haeckel also proposed a third kingdom Protista as "the kingdom of primitive forms". Originally these also included prokaryotes, but wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dinoflagellate Species
The dinoflagellates (Greek δῖνος ''dinos'' "whirling" and Latin ''flagellum'' "whip, scourge") are a monophyletic group of single-celled eukaryotes constituting the phylum Dinoflagellata and are usually considered algae. Dinoflagellates are mostly marine plankton, but they also are common in freshwater habitats. Their populations vary with sea surface temperature, salinity, and depth. Many dinoflagellates are photosynthetic, but a large fraction of these are in fact mixotrophic, combining photosynthesis with ingestion of prey (phagotrophy and myzocytosis). In terms of number of species, dinoflagellates are one of the largest groups of marine eukaryotes, although substantially smaller than diatoms. Some species are endosymbionts of marine animals and play an important part in the biology of coral reefs. Other dinoflagellates are unpigmented predators on other protozoa, and a few forms are parasitic (for example, ''Oodinium'' and ''Pfiesteria''). Some dinoflagellates prod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
