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Simnia Avena
''Simnia avena'' is a species of sea snail, a marine gastropod mollusk in the family (biology), family Ovulidae, the ovulids, cowry allies or false cowries. Description Distribution References Ovulidae Gastropods described in 1848 {{Ovulidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simnia
''Simnia'' is a genus of sea snails, marine gastropod mollusks in the family Ovulidae. Taxonomy Dolin & Ledon (2002) considered that the lectotype of ''Simnia nicaeensis'' Risso, 1826, type species of ''Simnia'', is a juvenile specimen of ''Simnia spelta'' (Linnaeus, 1758) type species of '' Neosimnia'' Fischer, 1884. This makes ''Simnia'' an objective synonym of ''Neosimnia''. Accordingly, all the species treated in Lorenz & Fehse (2009) under ''Neosimnia'' should thereby be accepted under ''Simnia''. Likewise, all the species treated by Lorenz & Fehse (2009) under ''Simnia'' should thereby be accepted under ''Xandarovula'' Cate, 1973. The assumptions of Dolin (Dolin & Ledon, 2002) are based on interpretations but not on the examination of the type material. Fehse (2016) has confirmed the vaility of the genus Neosimnia because the lectotype of ''Simnia nicaeensis'' Risso, 1826, type species of ''Simnia'', is never a juvenile specimen of ''Simnia spelta'' (Linnaeus, 1758) type ... [...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 opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusk
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 gas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. There are many thousands of species of sea snails and slugs, as well as freshwater snails, freshwater limpets, and land snails and slugs. The class Gastropoda contains a vast total of named species, second only to the insects in overall number. The fossil history of this class goes back to the Late Cambrian. , 721 families of gastropods are known, of which 245 are extinct and appear only in the fossil record, while 476 are currently extant with or without a fossil record. Gastropoda (previously known as univalves and sometimes spelled "Gasteropoda") are a major part of the phylum Mollusca, and are the most highly diversified class in the phylum, with 65,000 to 80,000 living snail and slug species. The anatomy, behavior, feeding, and re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Snail
Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the absence of a visible shell. Definition Determining whether some gastropods should be called sea snails is not always easy. Some species that live in brackish water (such as certain neritids) can be listed as either freshwater snails or marine snails, and some species that live at or just above the high tide level (for example species in the genus '' Truncatella'') are sometimes considered to be sea snails and sometimes listed as land snails. Anatomy Sea snails are a very large group of animals and a very diverse one. Most snails that live in salt water respire using a gill or gills; a few species, though, have a lung, are intertidal, and are active only at low tide when they can move around in the air. These air-breathing species includ ... [...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] |
George Brettingham Sowerby II
George Brettingham Sowerby II (1812 – 26 July 1884) was a British naturalist, illustrator, and conchologist. Together with his father, George Brettingham Sowerby I, he published the ''Thesaurus Conchyliorum'' and other illustrated works on molluscs. He was an elected a Fellow of the Linnean Society on 7 May 1844. He was the father of George Brettingham Sowerby III, also a malacologist. He died on 26 July 1884 and is buried on the west side of Highgate Cemetery with his father George Brettingham Sowerby I and sister Charlotte Caroline Sowerby. See also *Sowerby family The Sowerby family () was a British family of several generations of naturalists, illustrators, botanists, and zoologists active from the late 18th century to the mid twentieth century. *James Sowerby (1757–1822) **James De Carle Sowerby (178 ... References * H. Crosse & P. Fischer, 1885. ''Nécrologie''. Journal de Conchyliologie 33(1): 80. * K. v. W. Palmer, 1965. ''Who were the Sowerbys?'' Ame ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simniinae
Simniinae is a subfamily of molluscs in the Ovulidae family of gastropods. Genera Depending on authority, it contains between 7 and 12 genera (see genus list at Ovulidae). * ''Contrasimnia'' Lorenz & Fehse, 2009 * ''Cymbovula'' C. N. Cate, 1973 * '' Cyphoma'' Röding, 1798 * ''Dissona'' C. N. Cate, 1973 * ''Naviculavolva'' Lorenz & Fehse, 2009 * '' Neosimnia'' P. Fischer, 1884 * '' Quasisimnia'' Lorenz & Fehse, 2009 * ''Simnia'' Risso, 1826 * ''Simnialena ''Simnialena'' is a genus of sea snails, marine gastropod mollusks in the family Ovulidae. Species Species within the genus ''Simnialena'' include: *'' Simnialena acuminata'' ( Sowerby in A. Adams & Reeve, 1848) *'' Simnialena ilhabelaensi ...'' C. N. Cate, 1973 ;Genera brought into synonymy: * ''Cymbula'' C. N. Cate, 1973: synonym of ''Cymbovula'' C. N. Cate, 1973 (invalid: junior homonym of Cymbula H. Adams & A. Adams, 1854; ''Cymbovula'' is a replacement name) * ''Pseudocyphoma'' C. N. Cate, 1973: synonym of ''Cy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusca
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 gastropod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ovulidae
Ovulidae, common names the ovulids, cowry allies or false cowries, is a family of small to large predatory or parasitic sea snails, marine gastropod molluscs in the superfamily Cypraeoidea, the cowries and the cowry allies. MolluscaBase eds. (2020). MolluscaBase. Ovulidae J. Fleming, 1822. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=1747 on 2020-05-25 Distribution The ovulids are a widespread family, occurring mostly in tropical and subtropical waters, with most species in the Indo-West Pacific region. But a few species live in temperate waters. Habitat Ovulids are carnivorous molluscs that feed on polyps and tissues of Anthozoa (as do the genera ''Cyphoma'' and ''Pseudocyphoma''). They live on, and eat, soft corals and sea fans, and they are usually regarded as ectoparasites of these sessile colonial organisms, to which they are anchored by a long and narrow foot. This extreme specialisation in their alimen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cypraeoidea
Cypraeoidea, the cowries and cowry allies, is a superfamily of sea snails, marine gastropods included in the clade Littorinimorpha. This superfamily had been called Cypraeacea and was named by Rafinesque in 1815.MolluscaBase (2018). Cypraeoidea Rafinesque, 1815. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=14774 on 2018-07-18 Shell description This superfamily of sea snails have adult shells which do not look like typical gastropod shells because the spire of the shell is not visible in adults, instead the shells are: often quite rounded in shape, varying from globular to elongate, and with a long, very narrow, aperture which is sometimes toothed. The snails in these families have no operculum. The shells of almost every species in this superfamily are very smooth and shiny, and this is because in the living animal, the shell is nearly always fully covered with the mantle. The largest known fossil cowry was ''G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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