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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] |
Henry Augustus Pilsbry
Henry Augustus Pilsbry (7 December 1862 – 26 October 1957) was an American biologist, malacologist and carcinologist, among other areas of study. He was a dominant presence in many fields of invertebrate taxonomy for the better part of a century. For much of his career, his authority with respect to the classification of certain substantial groups of organisms was unchallenged: barnacles, chitons, North American terrestrial molluscs, terrestrial mollusks, and others. Biography Pilsbry (frequently misspelled ''Pilsbury'') spent his childhood and youth in Iowa. He was called "Harry" Pilsbry then, and developed an early fascination with the limited variety of mollusks he was able to find. He attended the University of Iowa, and received the Bachelor of Science degree there in 1882, but did not immediately find employment in his field of interest. Instead, Henry Pilsbry worked for publishing firms and newspapers for the next several years, but devoted most of his spare time to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semibalanus Balanoides
''Semibalanus balanoides'' (common barnacle, common rock barnacle, northern rock barnacle) is a common and widespread boreo-arctic species of acorn barnacle. It is common on rocks and other substrates in the intertidal zone of north-western Europe and both coasts of North America. Description Adult ''S. balanoides'' grow up to in diameter, and are sessile, living attached to rocks and other solid substrates. They have six greyish wall plates surrounding a diamond-shaped operculum. The base of the shell is membranous in ''Semibalanus,'' unlike other barnacles which have calcified bases. When the tide rises to cover the barnacles, the operculum opens, and feathery ''cirri'' (modified thoracic appendages) are extended into the water to filter food from the seawater. When the tide falls, the operculum closes again to prevent desiccation; the reduction from the primitive condition of eight wall plates to six is believed to decrease water loss even further by reducing the number o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Linnaeus
Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, the modern system of naming organisms. He is known as the "father of modern taxonomy". Many of his writings were in Latin; his name is rendered in Latin as and, after his 1761 ennoblement, as . Linnaeus was born in Råshult, the countryside of Småland, in southern Sweden. He received most of his higher education at Uppsala University and began giving lectures in botany there in 1730. He lived abroad between 1735 and 1738, where he studied and also published the first edition of his ' in the Netherlands. He then returned to Sweden where he became professor of medicine and botany at Uppsala. In the 1740s, he was sent on several journeys through Sweden to find and classify plants and animals. In the 1750s and 1760s, he continued to collect an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
12th Edition Of Systema Naturae
1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1. In conventions of sign where zero is considered neither positive nor negative, 1 is the first and smallest positive integer. It is also sometimes considered the first of the infinite sequence of natural numbers, followed by 2, although by other definitions 1 is the second natural number, following 0. The fundamental mathematical property of 1 is to be a multiplicative identity, meaning that any number multiplied by 1 equals the same number. Most if not all properties of 1 can be deduced from this. In advanced mathematics, a multiplicative identity is often denoted 1, even if it is not a number. 1 is by convention not considered a prime number; this was not universally accepted until the mid-20th century. Additionally, 1 is the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...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] |
Semibalanus Cariosus
''Semibalanus cariosus'', commonly known as the thatched barnacle, rock barnacle or horse barnacle, is a species of acorn barnacle occurring in the northern Pacific Ocean. Description This barnacle has six wall plates which are sculpted with vertical tube-like ribs which extend downwards onto the rock in projections rather like the edge of a thatched roof. The rostrum overlaps the wall plates and the terga form a beak when the barnacle is closed. There is a sinuous line at the junction between the tergum and the scutum. This is a large species of barnacle and can grow to a diameter of , but when densely packed together, individuals may be much taller than they are wide. The wall plates are white, greenish, brownish or gray. The base of the barnacle is little calcified so that when it is broken from the rock, a membrane and some soft tissues may be left behind. Distribution and habitat ''Semibalanus cariosus'' is native to the northern Pacific Ocean including Japan and the Pacif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semibalanus Madrasensis
''Semibalanus'' is a genus of barnacles, 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 ''Semibalanus cariosus'', commonly known as the thatched barnacle, rock barnacle or horse barnacle, is a species of acorn barnacle occurring in the northern Pacific Ocean. Description This barnacle has six wall plates which are sculpted with ver ...'' (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] |
Semibalanus Sinnurensis
''Semibalanus'' is a genus of barnacles, 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 ''Semibalanus'' is a genus of barnacles, 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 barn ...'' (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] |
Archaeobalanidae
In the past, Archaeobalanidae has been considered a family of barnacles of the order Sessilia. Research published in 2021 by Chan et al. resulted in the genera of Archaeobalanidae being merged with that of Balanidae, which now contains the members of both families. In the same work, Sessilia was not retained as an order of barnacles. See Also * Balanidae for the family containing former members of Archaeobalanidae. * List of Cirripedia genera These genera belong to Cirripedia, a subclass of barnacles in the phylum of Crustacea, as classified by Chan et al. (2021) and the World Register of Marine Species. Their classification into order, superfamily, family, and subfamily is included. ... for a list of barnacle families and genera. References Obsolete arthropod taxa {{Maxillopoda-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maxillopoda Genera
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean group can be treated as a subphylum under the clade Mandibulata. It is now well accepted that the hexapods emerged deep in the Crustacean group, with the completed group referred to as Pancrustacea. Some crustaceans ( Remipedia, Cephalocarida, Branchiopoda) are more closely related to insects and the other hexapods than they are to certain other crustaceans. The 67,000 described species range in size from '' Stygotantulus stocki'' at , to the Japanese spider crab with a leg span of up to and a mass of . Like other arthropods, crustaceans have an exoskeleton, which they moult to grow. They are distinguished from other groups of arthropods, such as insects, myriapods and chelicerates, by the possession of biramous (two-parted) limbs, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
