Spionida

	Spionida Spionida is an order (biology), order of marine polychaete worms in the infraclass Canalipalpata. Spionids are cosmopolitan and live in soft substrates in the Littoral zone, littoral or neritic zones. Characteristics Spionids have a single pair of flexible feeding tentacles with grooves, arising directly from the prostomium. The mouth has no jaws and the pharynx is partly eversible. Some species have small eye spots and some a central sensory lobe. Some of the anterior segments paired gills. The Parapodium, parapodia or lateral lobes have large lamellae. The chaetae are unbranched capillaries, spines and hooks. Families According to the World Register of Marine Species (WoRMS), the Spionida comprises six families in a single suborder: Order Spionida Suborder Spioniformia Apistobranchidae Mesnil and Caullery, 1898 Longosomatidae Hartman, 1944 Magelonidae Cunningham and Ramage 1888 Poecilochaetidae Hannerz, 1956 Spionidae Grube, 1850 Trochochaetidae Pettibone ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
picture info	Polychaete Polychaeta () is a paraphyletic class of generally marine Annelid, annelid worms, common name, 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 Alitta virens, sandworm or Alitta succinea, 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 (underwater vehicle), ''Nereus'' at the bottom of the Challenger Deep, the deepest known spot in the Earth's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Spionidae Spionidae is a family of marine worms within the Polychaeta. Spionids are selective deposit feeders that use their two grooved palps to locate prey. However, some spionids are capable of interface feeding, i.e. switching between deposit and suspension feeding. Spionids produce tubes by cementing sand grains and detritus material with mucus produced by their glandular pouches. The Spionidae is one of the most studied polychaete families given their biological and commercial importance. Members of this family have been used in regeneration studies and some are capable of boring into calcareous substrate which has destructive implications for commercially important shellfish. References Annelid families Canalipalpata {{annelid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Canalipalpata Canalipalpata, also known as bristle-footed annelids or fan-head worms, is an order of polychaete worms, with 31 families in it including the suborder Sabellida (families Serpulidae (tubeworms) and Sabellidae (fanworms and feather duster worms) and the Alvinellidae, a family of deep-sea worms associated with hydrothermal vents. The Canalipalpata have no teeth or jaws. Most are filter feeders. They have grooved palpi, which are covered in cilia. These cilia are used to transport food particles to the mouth. However, the cilia and grooves have been lost in the Siboglinidae family. Fossil record The earliest known member of the Canalipalpata is '' Terebellites franklini'', which was found in the Clouds Rapids Formation of Newfoundland, and dates from the mid Cambrian (St David's series). Use in aquaria Many species of Canalipalpata are visually attractive. Fanworms and Christmas tree worms (a type of serpulid) are recommended as species for beginners to keep in a marine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Trochochaetidae Trochochaetidae is a family of polychaetes belonging to the order Spionida Spionida is an order (biology), order of marine polychaete worms in the infraclass Canalipalpata. Spionids are cosmopolitan and live in soft substrates in the Littoral zone, littoral or neritic zones. Characteristics Spionids have a single pair .... Genera: * '' Cherusca'' Müller, 1858 * '' Nevaya'' McIntosh, 1911 * '' Trochochaeta'' Levinsen, 1884 References Spionida {{annelid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Apistobranchidae Apistobranchidae is a family of polychaetes belonging to the order Spionida Spionida is an order (biology), order of marine polychaete worms in the infraclass Canalipalpata. Spionids are cosmopolitan and live in soft substrates in the Littoral zone, littoral or neritic zones. Characteristics Spionids have a single pair .... References {{Taxonbar, from=Q15632260 Canalipalpata Annelid families ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Aberrantidae Aberrantidae is a family of annelids belonging to the order Spionida Spionida is an order (biology), order of marine polychaete worms in the infraclass Canalipalpata. Spionids are cosmopolitan and live in soft substrates in the Littoral zone, littoral or neritic zones. Characteristics Spionids have a single pair .... Genera: * '' Aberranta'' Hartman, 1965 https://animaldiversity.org/accounts/Aberrantidae/classification/ References Annelids Annelid families {{annelid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Uncispionidae Uncispionidae is a family of polychaetes belonging to the order Spionida Spionida is an order (biology), order of marine polychaete worms in the infraclass Canalipalpata. Spionids are cosmopolitan and live in soft substrates in the Littoral zone, littoral or neritic zones. Characteristics Spionids have a single pair .... Genera: * '' Rhamphispio'' Blake & Maciolek, 2018 * '' Uncispio'' Green, 1982 * '' Uncopherusa'' Fauchald & Hancock, 1984 References Polychaetes {{annelid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Magelonidae Magelonidae is a family of annelids belonging to the order Spionida. Genera: * '' Dannychaeta'' Chen, Parry, Vinther, Zhai, Hou & Ma, 2020 * '' Magelona'' Müller, 1858 * '' Meridithia'' Hernández-Alcántara & Solís-Weiss, 2000 * '' Octomagelona'' Aguirrezabalaga, Ceberio & Fiege, 2001 References {{Taxonbar, from=Q3887199 Annelids ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Longosomatidae Longosomatidae is a family of polychaetes belonging to the order Spionida Spionida is an order (biology), order of marine polychaete worms in the infraclass Canalipalpata. Spionids are cosmopolitan and live in soft substrates in the Littoral zone, littoral or neritic zones. Characteristics Spionids have a single pair .... Genera: * '' Heterospio'' Ehlers, 1874 References Polychaetes {{annelid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Poecilochaetidae Poecilochaetidae is a family of marine worms within the Polychaeta. It is a monotypic family containing the single genus '' Poecilochaetus''. Members of this family are benthic The benthic zone is the ecological region at the lowest level of a body of water such as an ocean, lake, or stream, including the sediment surface and some sub-surface layers. The name comes from the Ancient Greek word (), meaning "the depths". ... worms that burrow into soft sediments. References {{Taxonbar, from=Q3887490 Annelid families Canalipalpata ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Magelona Johnstoni ''Magelona'' is a genus of annelids belonging to the family Magelonidae. The genus has cosmopolitan distribution In biogeography, a cosmopolitan distribution is the range of a taxon that extends across most or all of the surface of the Earth, in appropriate habitats; most cosmopolitan species are known to be highly adaptable to a range of climatic and en .... Species Species: '' Magelona agoensis'' '' Magelona alexandrae'' '' Magelona alleni'' '' Magelona dakini'' '' Magelona japonica'' '' Magelona koreana'' '' Magelona johnstoni'' References {{Taxonbar, from=Q3885222 Annelids ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]