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Acorn Barnacle
Acorn barnacle and acorn shell are Common name, vernacular names for certain types of stalkless barnacles, generally excluding goose barnacles, stalked or gooseneck barnacles. As adults they are typically cone-shaped, symmetrical, and attached to rocks or other fixed objects in the ocean. Members of the barnacle order (taxonomy), order Balanomorpha are often called acorn barnacles. In addition, several species of barnacles are specifically called by the common name "acorn barnacle", including: * ''Balanus glandula'', Common Acorn Barnacle * ''Balanus nubilus'', Giant Acorn Barnacle * ''Chthamalus antennatus'', Acorn Barnacle * ''Megabalanus coccopoma'', Titan Acorn Barnacle * ''Megabalanus tintinnabulum'', Titan Acorn Barnacle * ''Paraconcavus pacificus'', Red-striped Acorn Barnacle * ''Semibalanus balanoides'', Northern Acorn Barnacle References {{Animal common name Animal common names ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Name
In biology, a common name of a taxon or organism (also known as a vernacular name, English name, colloquial name, country name, popular name, or farmer's name) is a name that is based on the normal language of everyday life; and is often contrasted with the scientific name for the same organism, which is Latinized. A common name is sometimes frequently used, but that is not always the case. In chemistry, IUPAC defines a common name as one that, although it unambiguously defines a chemical, does not follow the current systematic naming convention, such as acetone, systematically 2-propanone, while a vernacular name describes one used in a lab, trade or industry that does not unambiguously describe a single chemical, such as copper sulfate, which may refer to either copper(I) sulfate or copper(II) sulfate. Sometimes common names are created by authorities on one particular subject, in an attempt to make it possible for members of the general public (including such interested par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barnacle
A barnacle is a type of arthropod constituting the subclass Cirripedia in the subphylum Crustacea, and is hence related to crabs and lobsters. Barnacles are exclusively marine, and tend to live in shallow and tidal waters, typically in erosive settings. They are sessile (nonmobile) and most are suspension feeders, but those in infraclass Rhizocephala are highly specialized parasites on crustaceans. They have four nektonic (active swimming) larval stages. Around 1,000 barnacle species are currently known. The name is Latin, meaning "curl-footed". The study of barnacles is called cirripedology. Description Barnacles are encrusters, attaching themselves temporarily to a hard substrate or a symbiont such as a whale ( whale barnacles), a sea snake ('' Platylepas ophiophila''), or another crustacean, like a crab or a lobster (Rhizocephala). The most common among them, "acorn barnacles" ( Sessilia), are sessile where they grow their shells directly onto the substrate. Peduncul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goose Barnacles
Goose barnacles, also called stalked barnacles or gooseneck barnacles, are filter-feeding crustaceans that live attached to hard surfaces of rocks and flotsam in the ocean intertidal zone. Goose barnacles formerly made up the taxonomic order Pedunculata, but research has resulted in the classification of stalked barnacles within multiple orders of the infraclass Thoracica. Biology Some species of goose barnacles such as '' Lepas anatifera'' are pelagic and are most frequently found on tidewrack on oceanic coasts. Unlike most other types of barnacles, intertidal goose barnacles (e.g. ''Pollicipes pollicipes'' and '' Pollicipes polymerus'') depend on water motion rather than the movement of their cirri for feeding, and are therefore found only on exposed or moderately exposed coasts. Spontaneous generation In the days before it was realised that birds migrate, it was thought that barnacle geese, ''Branta leucopsis'', developed from this crustacean through spontaneous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Order (taxonomy)
Order ( la, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between family and 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. For some groups of organisms, their orders may follow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balanomorpha
The Balanomorpha are an order of barnacles, containing familiar acorn barnacles of the seashore. The order contains these families: * Austrobalanidae Newman & Ross, 1976 * Balanidae Leach, 1817 (acorn barnacles) * Bathylasmatidae Newman & Ross, 1971 * Catophragmidae Utinomi, 1968 * Chelonibiidae Pilsbry, 1916 (turtle barnacles) * Chionelasmatidae Buckeridge, 1983 * Chthamalidae Darwin, 1854 (star barnacles) * Coronulidae Leach, 1817 (whale barnacles) * Elminiidae Foster, 1982 * Pachylasmatidae Utinomi, 1968 * Pyrgomatidae Pyrgomatidae is a family of barnacles A barnacle is a type of arthropod constituting the subclass Cirripedia in the subphylum Crustacea, and is hence related to crabs and lobsters. Barnacles are exclusively marine, and tend to live in sha ... Gray, 1825 (coral barnacle) * Tetraclitidae Gruvel, 1903 * Waikalasmatidae Ross & Newman, 2001 * † Pachydiadematidae Chan et al., 2021 References External links * Barnacles Arthropod suborders [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acorn Barnacles - Flickr - Brewbooks
The acorn, or oaknut, is the nut of the oaks and their close relatives (genera ''Quercus'' and ''Lithocarpus'', in the family Fagaceae). It usually contains one seed (occasionally two seeds), enclosed in a tough, leathery shell, and borne in a cup-shaped cupule. Acorns are long and on the fat side. Acorns take between 5 and 24 months (depending on the species) to mature; see the list of ''Quercus'' species for details of oak classification, in which acorn morphology and phenology are important factors. Etymology The word ''acorn'' (earlier ''akerne'', and ''acharn'') is related to the Gothic name ''akran'', which had the sense of "fruit of the unenclosed land". The word was applied to the most important forest produce, that of the oak. Chaucer spoke of "achornes of okes" in the 14th century. By degrees, popular etymology connected the word both with "corn" and "oak-horn", and the spelling changed accordingly. The current spelling (emerged 15c.-16c.), derives from associat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semibalanus Balanoides 2257
''Semibalanus'' is a genus of barnacle A barnacle is a type of arthropod constituting the subclass Cirripedia in the subphylum Crustacea, and is hence related to crabs and lobsters. Barnacles are exclusively marine, and tend to live in shallow and tidal waters, typically in eros ...s, comprising four species. It is the only genus in the subfamily Semibalaninae. Species These species belong to the genus ''Semibalanus'': * '' Semibalanus balanoides'' (Linnaeus, 1767) (northern acorn barnacle) * '' Semibalanus cariosus'' (Pallas, 1788) (thatched barnacle) * '' Semibalanus madrasensis'' (Daniel, 1958) * '' Semibalanus sinnurensis'' (Daniel, 1962) References Archaeobalanidae Maxillopoda genera Taxa named by Henry Augustus Pilsbry {{Maxillopoda-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balanus Glandula
''Balanus glandula'' (North American Acorn Barnacle, Common Acorn Barnacle) is one of the most common barnacle species on the Pacific coast of North America, distributed from the U.S. state of Alaska to Bahía de San Quintín near San Quintín, Baja California. They are commonly found in the upper intertidal zone on mussels, rocks and pier pilings. They can obtain oxygen from both water and air. This acorn barnacle is a moderate-sized one with a diameter of up to . The shell is formed by overlapping plates and has a calcareous basis. It has more the shape of a cylinder than the shape of a cone. The white operculum has heavily ridged walls. It can live up to ten years. It has been intensely studied in recent years as a model species for linking physical oceanography and population genetics (or phylogeography) surveys. This species was introduced to the shores of Argentina in the 1960s, and has become an invasive species An invasive species otherwise known as an alien is an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balanus Nubilus
''Balanus nubilus'', commonly called the giant acorn barnacle, is the world's largest barnacle, reaching a diameter of and a height of up to , and containing the largest known muscle fibres. ''Balanus nubilus'' is a northeast Pacific species that ranges from southern Alaska to Baja California. It is frequently found growing on rocks, pier pilings and hard-shelled animals at depths of up to . Like other acorn barnacles, ''B. nubilus'' is a filter feeder; it, in turn, is sometimes eaten by sea otters, sea stars, crabs and the Native Americans of the Pacific Northwest. Abandoned shells of ''B. nubilus'' are used by the crab ''Glebocarcinus oregonensis ''Glebocarcinus oregonensis'', commonly known as the pygmy rock crab, is a species of crab found on the Pacific coast of North America. Description It is usually red/brown but this may vary; their legs have many setae (hairs). The carapace reach ...'' for shelter. References Barnacles Crustaceans of the eastern Pacific Oce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chthamalus Antennatus
''Chthamalus antennatus'', the six-plated barnacle is a species of intertidal barnacle found in eastern and southern Australia. Growing from two centimetres wide and one centimetre high. The barnacle is found on the coast, usually on rocks at or above the high tide level or just below the splash zone In offshore construction, the splash zone is the transition from air to water when lowering heavy burdens into the sea. The overall efforts applied on the crane change dramatically when the load starts touching water, up to the point where it is .... Feeding occurs only at unusually high tides. References Barnacles Crustaceans described in 1854 {{Maxillopoda-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megabalanus Coccopoma
''Megabalanus coccopoma'', the titan acorn barnacle, is a tropical species of barnacle first described by Charles Darwin in 1854. Its native range is the Pacific coasts of South and Central America but it is extending its range to other parts of the world. Description The titan acorn barnacle is a large species with calcareous plates forming a steep-sided cone which grows to a height and width of . The plates are smooth and are fused together. They are pink and are separated by narrow purple or white radii and the aperture at the top is small. In the Pacific Ocean this species can be confused with '' Megabalanus californicus'' but that species is a darker colour, has a wider aperture and has wider rays between the plates. Distribution The native range of the titan acorn barnacle is the Pacific coasts of Central and South America from Mazatlán, Mexico to the Ecuador/Peru border. It is found growing on rocks and other hard substrates from the low tide mark down to about . Fossil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megabalanus Tintinnabulum
''Megabalanus tintinnabulum'' is a species of large barnacle in the family Balanidae. It is the type species of the genus. The specific name comes from the Latin ' meaning a handbell and probably refers to the fact that small groups of barnacles resemble clusters of miniature bells. Taxonomy When Carl Linnaeus first described this species in 1758, he named it ''Balanus tintinnabulum''. The lectotype was depicted by Georg Eberhard Rumphius in 1705, the type locality being Ambon, Indonesia. In a monograph on barnacles in 1854, Charles Darwin described the species as being very variable and assigned it to Section A of the genus ''Balanus'', characterised by having the parietes, basis, and radii (different plates in the shell wall) permeated by minute pores. In 1916, Henry Augustus Pilsbry elevated ''Balanus tintinnabulum'' to subspecies rank and in subsequent years a number of varieties were described. Later it was placed in the subgenus ''Megabalanus'' and in 1976, Newman and Ros ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
