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Atrina Squamifera
''Atrina squamifera'', one of several species known as the ''horse mussel'', is a species of Bivalvia, bivalve pen shell. It is a marine (ocean), marine mollusc in the family (biology), family Pinnidae. It is Endemism, endemic to South Africa. Distribution This species is found from Saldanha Bay to Port Alfred, subtidally to at least 35 m. Description This animal has a large fragile shell and can grow up to 390 mm in total length. It has 6–12 ribs running longitudinally down its shell. Each rib bears translucent cup-like projections. The shell does not close at the posterior end and the dark-rimmed white flesh can be seen inside.Day, J.H. 1969. ''Marine Life on South African Shores'' Balkema, Cape Town Ecology The horse mussel is a filter feeder. It usually lies buried vertically in mud or sand although it can also be seen on the wooden decks of the trawler wrecks Orotava and Princess Elizabeth (ship), Princess Elizabeth in Smitswinkel Bay. The shell is often heavily over ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Brettingham Sowerby I
George Brettingham Sowerby I (12 August 1788 – 26 July 1854) was a British naturalist, illustrator and conchologist. Life He was the second son of James Sowerby. George was educated at home under private tutors, and afterwards assisted his father in the production of illustrated works on natural history. On the latter's death in 1822, he and his brother James De Carle Sowerby continued their father's work on fossil shells, publishing the latter parts of the ''Mineral Conchology of Great Britain''. He published about 50 papers on molluscs and started several comprehensive, illustrated books on the subject, the most important the ''Thesaurus Conchyliorum'', a work that was continued by his son, George Brettingham Sowerby II and his grandson George Brettingham Sowerby III. One of his first works was the cataloguing of the collection of the Earl of Tankerville. He also dealt in shells and natural history objects, his place of business being first in King Street, Covent Garden, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bivalvia
Bivalvia (), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, bivalves have no head and they lack some usual molluscan organs, like the radula and the odontophore. They include the clams, oysters, cockles, mussels, scallops, and numerous other families that live in saltwater, as well as a number of families that live in freshwater. The majority are filter feeders. The gills have evolved into ctenidia, specialised organs for feeding and breathing. Most bivalves bury themselves in sediment, where they are relatively safe from predation. Others lie on the sea floor or attach themselves to rocks or other hard surfaces. Some bivalves, such as the scallops and file shells, can swim. The shipworms bore into wood, clay, or stone and live inside these substances. The shell of a bivalve is composed o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine (ocean)
The ocean (also the sea or the world ocean) is the body of Saline water, salt water that covers approximately 70.8% of the surface of Earth and contains 97% of Water distribution on Earth, Earth's water. An ocean can also refer to any of the large bodies of water into which the world ocean is conventionally divided."Ocean." ''Merriam-Webster.com Dictionary'', Merriam-Webster, [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusc
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is estimated between 60,000 and 100,000 additional species. The proportion of undescribed species is very high. Many taxa remain poorly studied. Molluscs are the largest marine phylum, comprising about 23% of all the named marine organisms. Numerous molluscs also live in freshwater and terrestrial habitats. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat. The phylum is typically divided into 7 or 8 taxonomic classes, of which two are entirely extinct. Cephalopod molluscs, such as squid, cuttlefish, and octopuses, are among the most neurologically advanced of all invertebrates—and either the giant squid or the colossal squid is the largest known invertebrate species. The gastr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinnidae
The Pinnidae are a taxonomic family of large saltwater clams sometimes known as pen shells. They are marine bivalve molluscs in the order Pteriida. Shell description The shells of bivalves in this family are fragile and have a long and triangular shape, and in life the pointed end is anchored in sediment using a byssus. The shells have a thin but highly iridescent inner layer of nacre in the part of the shell near the umbos (the pointed end). The family Pinnidae includes the fan shell, '' Atrina fragilis'', and '' Pinna nobilis'', the source of sea silk. Some species are also fished for their food value. Human use As RosewaterRosewater, Joseph. (1961). “The Family Pinnidae in the Indo-Pacific.” ''Indo-Pacific Mollusca'', vol. 1, no. 4. September 28, 1961, pp. 175-176. commented in 1961: "“The Pinnidae have considerable economic importance in many parts of the world. They produce pearls of moderate value. In the Mediterranean area, material made from the holdfast or b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orotava
Orotava is a genus of tephritid or fruit flies in the family Tephritidae. Species *''Orotava cribrata'' (Jacques-Marie-Frangile Bigot, Bigot, 1891) *''Orotava hamula'' (Johannes C. H. de Meijere, Meijere, 1914) References Tephritinae Tephritidae genera Diptera of Asia Diptera of Europe {{Tephritinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Princess Elizabeth (ship)
Princess Elizabeth or Princess Elisabeth may refer to: People British * Elizabeth of England (other), lists multiple princesses of England that lived prior to 1707 ** Elizabeth I (1533–1603; ), known as ''Princess Elizabeth'' before her accession * Elizabeth of Scotland (other), lists multiple princesses of Scotland that lived prior to 1707 * Elizabeth of Great Britain (other), lists multiple princesses that have lived since 1707 ** Elizabeth II (1926–2022; ), known as ''HRH Princess Elizabeth of York'' and ''HRH The Princess Elizabeth'' before accession to the thrones of the United Kingdom, Canada, Australia, New Zealand, South Africa, Ceylon, and Pakistan in 1952 German * Elisabeth of Bavaria (other), multiple princesses * Elisabeth of Hesse (other), multiple princesses * Princess Elisabeth of Hesse and by Rhine (other), multiple princesses * Princess Elisabeth of Anhalt (1857–1933), Grand Duchess of Mecklenburg-Str ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinnotheridae
The Pinnotheridae are a family of tiny soft-bodied crabs that live commensally in the mantles of certain bivalve molluscs (and the occasional large gastropod mollusc species in genera such as '' Strombus'' and ''Haliotis''). '' Tunicotheres moseri'' is commensal with a tunicate. The earliest fossils attributable to the Pinnotheridae date from the Danian. Genera and species This is a comprehensive list of species in the family, as of 2008: ;''Abyssotheres'' ;'' Afropinnotheres'' ;'' Alarconia'' ;'' Alain'' *''Alain crosnieri'' *''Alain raymondi'' Ahyong & Ng, 2008 ;''Alainotheres'' ;'' Arcotheres'' *'' Arcotheres alcocki'' *'' Arcotheres arcophilus'' *'' Arcotheres coarctatus'' *'' Arcotheres exiguus'' *'' Arcotheres guinotae'' *'' Arcotheres latifrons'' *'' Arcotheres latus'' *'' Arcotheres modiolicola'' *'' Arcotheres nudifrons'' *'' Arcotheres palaensis'' *'' Arcotheres pernicola'' *'' Arcotheres placunae'' *'' Arcotheres rayi'' *'' Arcotheres rhombifer'' *'' Arcotheres rotund ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shrimp
Shrimp are crustaceans (a form of shellfish) with elongated bodies and a primarily swimming mode of locomotion – most commonly Caridea and Dendrobranchiata of the decapod order, although some crustaceans outside of this order are referred to as "shrimp". More narrow definitions may be restricted to Caridea, to smaller species of either group or to only the marine species. Under a broader definition, ''shrimp'' may be synonymous with prawn, covering stalk-eyed swimming crustaceans with long, narrow muscular tails ( abdomens), long whiskers ( antennae), and slender legs. Any small crustacean which resembles a shrimp tends to be called one. They swim forward by paddling with swimmerets on the underside of their abdomens, although their escape response is typically repeated flicks with the tail driving them backwards very quickly. Crabs and lobsters have strong walking legs, whereas shrimp have thin, fragile legs which they use primarily for perching.Rudloe & Rudloe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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