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Bonelliida
Bonelliida is a suborder of the order Echiuroidea, an order of polychaete worms. Families The following families are classified within the suborder: * Bonelliidae Lacaze-Duthiers, 1858 * Ikedidae Bock Bock is a strong beer in Germany, usually a dark lager. Several substyles exist, including: *Doppelbock (''Double Bock''), a stronger and maltier version *Eisbock (''Ice Bock''), a much stronger version made by partially freezing the beer an ..., 1942 References {{Taxonbar, from=Q10432880 Echiurans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bonelliidae
Bonelliidae is a family of marine worms (Class Echiura, phylum Annelida) noted for being sexually dimorphic, with males being tiny in comparison with the females. They occupy burrows in the seabed in many parts of the world's oceans, often at great depths. Characteristics Members of the class Echiura are plump, unsegmented worms, commonly known as spoonworms. The mouth is at the anterior end of the trunk and a flattened proboscis extends forward in front of the mouth. The ventral side of the proboscis has a ciliated channel along which food particles and mucus are moved towards the mouth. Close behind the mouth are two hooked chaetae and one or two nephridial pores. The gut is much longer than the body and is folded and coiled inside the coelom (body cavity). The anus is at the posterior end of the body and two anal vesicles with ciliated funnels open into the cloaca. In the family Bonelliidae, the females are very much larger than the dwarf males, and in most, if not all, inst ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echiuroidea
Echiuroidea is an order of annelids in the class Polychaeta. Families *Suborder Bonelliida **Bonelliidae Lacaze-Duthiers, 1858Lacaze-Duthiers, H. (1858). Recherches sur la bonellie (''Bonellia viridis'') (1). ''Annales des Sciences Naturells, Comprenant la Zoologie, la Botanique, l'Anatomie, et la Physiologie Comparées des Deux Règnes, et l'Histoire des Corps Organisés Fossiles'', 4(10), 49–110. **Ikedidae Bock, 1942Bock, S. (1942). ''On the Structure and Affinities of ''Thalassema lankesteri'' Herdman and the Classification of the Group Echiuroidea''. Göteborg: Elanders. *Suborder Echiurida **Echiuridae de Quatrefages, 1847de Quatrefages, M. A. (1847). Études sur les types inférieurs de l'embranchment des annelés. Mémoire sur l'Echiure de Gærtner (''Echiurus gærtnerii'' Nob.). ''Annales des Sciences Naturells, Comprenant la Zoologie, la Botanique, l'Anatomie, et la Physiologie Comparées des Deux Règnes, et l'Histoire des Corps Organisés Fossiles'', 3(7), 307–343. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polychaete
Polychaeta () is a paraphyletic class of generally marine annelid worms, commonly called bristle worms or polychaetes (). Each body segment has a pair of fleshy protrusions called parapodia that bear many bristles, called chaetae, which are made of chitin. More than 10,000 species are described in this class. Common representatives include the lugworm (''Arenicola marina'') and the sandworm or clam worm ''Alitta''. Polychaetes as a class are robust and widespread, with species that live in the coldest ocean temperatures of the abyssal plain, to forms which tolerate the extremely high temperatures near hydrothermal vents. Polychaetes occur throughout the Earth's oceans at all depths, from forms that live as plankton near the surface, to a 2- to 3-cm specimen (still unclassified) observed by the robot ocean probe ''Nereus'' at the bottom of the Challenger Deep, the deepest known spot in the Earth's oceans. Only 168 species (less than 2% of all polychaetes) are known from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ikedidae
Ikedidae is a family of spoon worms in the suborder Bonelliida. It is a monotypic family, the only genus being ''Ikeda''. These worms burrow into soft sediment on the seabed. Examination of the original material of '' Ikeda taenoides'' by Teruaki Nishikawa in 2002 showed that the longitudinal muscle layer lay between the circular layer and the oblique layer, as in all other echiurans, throwing the validity of the family Ikedidae into doubt. Nishikawa advocates that the family be regarded as a junior synonym of Echiuridae. Species The World Register of Marine Species recognises the following species in the genus:- *''Ikeda pirotansis'' ( Menon & DattaGupta, 1962) *''Ikeda taenioides ''Ikeda taenioides'' is a species of spoon worm in the family Ikedidae. It is native to the northern Pacific Ocean where it is found in the subtidal waters around Japan. Taxonomy This spoon worm was first described by the Japanese zoologist I. ...'' ( Ikeda, 1904) References {{Taxonbar, fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henri De Lacaze-Duthiers
Félix Joseph Henri de Lacaze-Duthiers (15 May 1821 – 21 July 1901) was a French biologist, anatomist and zoologist born in Montpezat in the department of Lot-et-Garonne. He was a leading authority in the field of malacology. He studied medicine in Paris, and worked at Necker Hospital under Armand Trousseau (1801–1867). Later on, with Jules Haime (1824–1856), he travelled to the Balearic Islands to study marine life. In 1854 he returned to Paris as an assistant to Henri Milne-Edwards (1800–1885), and soon afterwards became a professor of zoology in Lille. In 1865 he succeeded Achille Valenciennes (1794–1865) as chair of ''histoire naturelle des mollusques, des vers et des zoophytes'' at the National Museum of Natural History, France, and in 1868 became a professor at the University of Paris. In 1871 he was elected to French Academy of Sciences in the department of anatomy and zoology. Lacaze-Duthiers is remembered for his study of the anatomy and developmental history ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sixten Bock
Sixten, Sigsten or Sighsten is a masculine given name of Swedish origin. The name is derived from the Old Swedish words (victory) and (stone). It is earliest attested in a runestone as sikstain. People named Sixten include: * Sixten Boström (born 1963), Finnish football player and manager * Sixten Ehrling (1918–2005), Swedish conductor * Sixten Franzén (1919–2008), Swedish scientist, inventor of pointcytology * Sighsten Herrgård (1943–1989), Finnish-born Swedish fashion designer *Sixten Isberg (1921–2012), Swedish alpine skier * Sixten Jansson (1913–2006), Swedish canoeist *Sixten Jernberg (1929–2012), Swedish cross-country skier * Sixten Johansson (1910–1991), Swedish ski jumper * Sixten Larsson (1918–1995), Swedish track athlete * Sixten Mohlin (born 1996), Swedish footballer * Sixten Kai Nielsen (born 1978), Danish artist * Sixten Korkman (born 1948), Finnish ecomonist *Sixten Ringbom (1935–1992), Finnish art historian *Sixten Sason Sixten Sason (born Si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
