Dentalium Longitrorsum
''Dentalium longitrorsum'' is a species of tusk shell, a marine scaphopod mollusk in the family Dentaliidae Dentaliidae is a family of relatively large tusk shells, scaphopod mollusks in the order Dentaliida. Genera * '' Antalis'' H. & A. Adams, 1854 * '' Coccodentalium'' Sacco, 1896 * '' Compressidentalium'' Habe, 1963 * '' Dentalium'' .... Description The shell is a slender and long, about 100mm. It is white with a slight curve and the openings at both ends are circular. References Dentalium Molluscs described in 1842 {{Scaphopod-stub ...
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Lovell Augustus Reeve
Lovell Augustus Reeve (19 April 1814 – 18 November 1865) was an English conchologist and publisher. Life Born at Ludgate Hill, London, on 19 April 1814, he was a son of Thomas Reeve, draper and mercer, by his wife Fanny Lovell. After attending school at Stockwell, he was apprenticed at the age of 13 to Mr. Graham, a local grocer. The chance of purchase of some shells led to a lifelong interest in conchology. In 1833 he attended the meeting of the British Association for the Advancement of Science at Cambridge. At the end of his apprenticeship Reeve paid a visit to Paris, where he read a paper on the classification of Mollusca before the Academy of Sciences. On his return to London, he set to work on his first book, ''Conchologia Systematica'' (2 vols. London, 1841–2). From 1842, he traded as a natural history dealer. Using profits made by the sale of Dutch Governor-General of the Moluccas Van Ryder's collection from the Moluccas, which he purchased at Rotterdam, and with t ...
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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 ...
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Marine (ocean)
The ocean (also the sea or the world ocean) is the body of salt water that covers approximately 70.8% of the surface of Earth and contains 97% of 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, https://www.merriam-webster.com/dictionary/ocean. Accessed March 14, 2021. Separate names are used to identify five different areas of the ocean: (the largest), ,

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 ...
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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 ...
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Dentaliidae
Dentaliidae is a family of relatively large tusk shells, scaphopod mollusks in the order Dentaliida. Genera * '' Antalis'' H. & A. Adams, 1854 * '' Coccodentalium'' Sacco, 1896 * '' Compressidentalium'' Habe, 1963 * '' Dentalium'' Linnaeus, 1758 Events January–March * January 1 – Swedish biologist Carl Linnaeus (Carl von Linné) publishes in Stockholm the first volume (''Animalia'') of the 10th edition of Systema Naturae, 10th edition of ''Systema Naturae'', the sta ... * '' Eudentalium'' Cotton & Godfrey, 1933 * '' Fissidentalium'' Fischer, 1885 * '' Graptacme'' Pilsbry & Sharp, 1897 * '' Paradentalium'' Cotton & Godfrey, 1933 * '' Pictodentalium'' Palmer, 1974 * '' Plagioglypta'' Pilsbry in Pilsbry & Sharp, 1897 * '' Schizodentalium'' Sowerby, 1894 * '' Striodentalium'' Habe, 1964 * '' Tesseracme'' Pilsbry & Sharp, 1897 References * Scaphopods {{scaphopod-stub ...
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Dentalium
Dentalium may refer to: * ''Dentalium'' (genus), a genus of tooth shells * Dentalium (anthropology) The word dentalium, as commonly used by Native American artists and anthropologists, refers to tooth shells or tusk shells used in indigenous jewelry, adornment, and commerce in western Canada and the United States. These tusk shells are a kind of ...