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Vexillum Cancellarioides
''Vexillum cancellarioides'', common name the cancellaria mitre, is a species of small sea snail, marine gastropod mollusk in the family Costellariidae, the ribbed miters. Description The shell size of this species varies between 13 mm and 25 mm, comparable to the length of average human fingernail. Its shell may have any color range from cream white to light brown. The shell is white, sometimes with a central brown band or a row of spots interrupted by the tubercles, which cover the entire surface. The upper part of the bodywhorl shows close impressed revolving striae. The aperture is yellowish within. Distribution This species occurs in the Red Sea, the Indian Ocean off the Aldabra Aldabra is the world's second-largest coral atoll, lying south-east of the continent of Africa. It is part of the Aldabra Group of islands in the Indian Ocean that are part of the Outer Islands of the Seychelles, with a distance of 1,120 k ... Atoll and the Mascarene Bas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermann Eduard Anton
Hermann Eduard Anton (17 December 1794, in Görlitz – 24 March 1872, in Halle) was a German malacologist. Works * Anton H. E. (1839)''Verzeichniss der Conchylien'' Halle, xvi + 110 pp. Some authors consider the work to be published in 1838 while others in 1839. Taxa described Taxa described by Hermann Eduard Anton include (sorted chronologically): 1838 * '' Bonellia obtusa'' Anton, 1838 * '' Cardiocardita'' Anton, 1838 * '' Clanculus miniatus'' (Anton, 1838) * '' Echinolittorina reticulata'' (Anton, 1838) * '' Eulima dubia'' Anton, 1838 * '' Eulima incerta'' Anton, 1838 * ''Fasciolaria magna'' (Anton, 1838) * ''Fasciolaria sulcata'' (Anton, 1838) * '' Fusinus indicus'' (Anton, 1838) * '' Isognomon radiatus'' (Anton, 1838) * '' Latirus fenestratus'' (Anton, 1838) * '' Latirus impressus'' (Anton, 1838) * '' Latirus plicatulus'' (Anton, 1838) * '' Monoplex wiegmanni'' (Anton, 1838) * '' Nerita planospira'' Anton, 1838 * '' Ostrea imputata'' Anton, 1838 * '' Oxystele tigrina'' ... [...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] |
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] |
Costellariidae
Costellariidae sometimes called the "ribbed miters" is a taxonomic family of minute to medium-sized predatory sea snails, marine gastropod mollusks. This family of snails is also sometimes referred to as ''Vexillum'' miters. The main family of miter shells however is Mitridae, a closely related group. The monophyly of this family has been confirmed. Taxonomy This family was previously sometimes known as Vexillidae. ''Latiromitra'' (from family Ptychatractidae) has been found to be closely related to Costellariidae in the molecular phylogeny analysis by Fedosov & Kantor (2010). Genera Genera within the family Costellariidae include: * ''Alisimitra'' Fedosov, Herrmann & Bouchet, 2017 * ''Atlantilux'' S.-I Huang, 2015 * ''Austromitra'' Finlay, 1927 * ''Ceratoxancus'' Kuroda, 1952 * ''Costapex'' Fedosov, Herrmann & Bouchet, 2017 * ''Latiromitra'' Locard, 1897 * ''Mitromica'' S. S. Berry, 1958 * '' Nodicostellaria'' Petuch, 1987 * ''Orphanopusia'' Fedosov, Herrmann & Bouchet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1 Centimeter
The following are examples of orders of magnitude for different lengths. __TOC__ Overview Detailed list To help compare different orders of magnitude, the following list describes various lengths between 1.6 \times 10^ metres and 10^metres. Subatomic scale Atomic to cellular scale Cellular to human scale Human to astronomical scale Astronomical scale Less than 1 zeptometre The ' ( SI symbol: ') is a unit of length in the metric system equal to . To help compare different orders of magnitude, this section lists lengths shorter than 10−21 m (1 zm). *1.6 × 10−5 quectometres (1.6 × 10−35 metres) – the Planck length (Measures of distance shorter than this do not make physical sense, according to current theories of physics.) *1 qm – 1 quectometre, the smallest named subdivision of the metre in the SI base unit of length, one nonillionth of a metre *1 rm – 1 rontometre, a subdivision of the metre in the SI base unit of length, one octil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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