|
Olivella Perplexa
''Olivella perplexa'' is a species of small sea snail, marine gastropod mollusk in the subfamily Olivellinae, in the family Olividae Olive snails, also known as olive shells and olives, scientific name Olividae, are a taxonomic family of medium to large predatory sea snails with smooth, shiny, elongated oval-shaped shells.Bouchet, P.; Gofas, S. (2012). Olividae. Accessed throu ..., the olives. Species in the genus Olivella are commonly called dwarf olives. Description Original description: "The shell is small (maximum length about 5 mm.), relatively solid and porcellaneous white, glossy, usually with an elevated stubby spire of about 5 whorls and about half the total length. The nuclear whorls are small, convex and partly immersed so as to appear to lie below the general level of the succeeding turn. The sutures are deeply channelled, widely overlapped by the sharp and often frayed margin of the whorl in front. Parietal callus is thick, particularly so near the end of ... [...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] |
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] |
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] |
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] |
Subfamily
In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end subfamily botanical names with "-oideae", and zoological names with "-inae". See also * International Code of Nomenclature for algae, fungi, and plants * International Code of Zoological Nomenclature * Rank (botany) * Rank (zoology) In biological classification, taxonomic rank is the relative level of a group of organisms (a taxon) in an ancestral or hereditary hierarchy. A common system consists of species, genus, family, order, class, phylum, kingdom, domain. While ... Sources {{biology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olivellinae
Olivellinae, are a subfamily of small predatory sea snails with smooth, shiny, elongated oval-shaped shells, in the family Olividae. The shells sometimes show muted but attractive colors, and may have some patterning.MolluscaBase eds. (2020). MolluscaBase. Olivellinae Troschel, 1869. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=225405 on 2020-03-18 These animals are marine gastropod molluscs in the superfamily Olivoidea, within the order Neogastropoda according to the taxonomy of Bouchet and Rocroi. Distribution ''Olivella'' snails are found worldwide, but mostly Ecuador in subtropical and tropical seas and oceans. Habitat and habit These snails are found on sandy substrates intertidally and subtidally. These snails are all carnivorous sand-burrowers. Shell description The shells are basically oval and cylindrical in shape. They have a well-developed stepped spire. ''Olivella'' shells have a siphonal notch ... [...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] |
Olividae
Olive snails, also known as olive shells and olives, scientific name Olividae, are a taxonomic family of medium to large predatory sea snails with smooth, shiny, elongated oval-shaped shells.Bouchet, P.; Gofas, S. (2012). Olividae. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=23082 on 2012-06-11 The shells often show various muted but attractive colors, and may be patterned also. They are marine gastropod molluscs in the family Olividae within the main clade Neogastropoda. Taxonomy According to the Revised Classification, Nomenclator and Typification of Gastropod Families (2017) the family Olividae consists of five subfamilies: * Olivinae Latreille, 1825 – synonyms: Dactylidae H. Adams & A. Adams, 1853 (inv.); * Agaroniinae Olsson, 1956 * Calyptolivinae Kantor, Fedosov, Puillandre, Bonillo & Bouchet, 2017 * Olivancillariinae Golikov & Starobogatov, 1975 *Olivellinae Troschel, 1869 Distribution Olive snails are ... [...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] |
Olivella
Olivella is a municipality in Catalonia, in the province of Barcelona, Spain. It is situated in the comarca of Garraf. History The first known village in the area was founded in 992 around a castle known as ''Castell vell''. The inhabitants lived off dryland agriculture. This initial nucleus was almost abandoned after the black plague caused numerous deaths. The area was resettled in the 14th century and gradually prospered. Nowadays there are some new housing developments in the area as well as the "Sakya Tashi Ling"AADD. ''Museus i Centres de Patrimoni Cultural a Catalunya'', Departament de Cultura de la Generalitat de Catalunya, Barcelona 2010, Buddhist monastery, located in Plana Novella. Geography The village is located in the Garraf Massif, in a natural park area, not far from Barcelona Barcelona ( , , ) is a city on the coast of northeastern Spain. It is the capital and largest city of the autonomous community of Catalonia, as well as the second most populous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olivella Perplexa 01
Olivella is a municipality in Catalonia, in the province of Barcelona, Spain. It is situated in the comarca of Garraf. History The first known village in the area was founded in 992 around a castle known as ''Castell vell''. The inhabitants lived off dryland agriculture. This initial nucleus was almost abandoned after the black plague caused numerous deaths. The area was resettled in the 14th century and gradually prospered. Nowadays there are some new housing developments in the area as well as the "Sakya Tashi Ling"AADD. ''Museus i Centres de Patrimoni Cultural a Catalunya'', Departament de Cultura de la Generalitat de Catalunya, Barcelona 2010, Buddhist monastery, located in Plana Novella. Geography The village is located in the Garraf Massif The Garraf Massif ( ca, Massís del Garraf, ) is a mountain range of the Catalan Coastal Range, Catalonia, Spain. Its cliffs reach the Mediterranean waters. Its highest point on the coastal side is La Morella, 593 metres abov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olivella (gastropod)
''Olivella'', common name the dwarf olives, is a genus of small predatory sea snails, marine gastropod molluscs in the subfamily Olivellinae of the family Olividae, the olives. ''Olivella'' is the type genus of the family.WoRMS (2010). Olivella Swainson, 1831. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138274 on 2011-01-02 Description Adults in the ''Olivella'' species are usually quite small, hence the genus has the common name "dwarf olive". Species of ''Oliva'' are usually larger, but there are exceptions. The shell of ''Olivella'' usually has a keel-like twist at the anterior end of the columella. The wall above it may be concave or have deep furrows. The inner lip can sometimes show a deep callus, and in many cases this extends over the parietal wall to the end of the aperture. This callus formation may extend to the spire b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Sea Snail")
