|
Donax (bivalve)
''Donax'' is a genus of small, edible saltwater clams, marine bivalve 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 esti ...s. The genus is sometimes known as bean clams or wedge shells; however, ''Donax'' species have numerous different common names in different parts of the world. In the southeastern U.S. they are known as "coquina", a word that is also used for the hard limestone concretions of their shells and those of other marine organisms. Ecology Species of ''Donax'' live, sometimes in high concentrations, vertically aligned in the sand on exposed beaches, on tropical and temperate coasts worldwide. When the waves wash these small clams out of the sand, they can dig back in again quite rapidly. They are filter feeders. Some species, such as ''Donax variabilis'', migrate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bivalve Shell
A bivalve shell is part of the body, the exoskeleton or shell, of a bivalve mollusk. In life, the shell of this class of mollusks is composed of two hinged parts or ''valves''. Bivalves are very common in essentially all aquatic locales, including saltwater, brackish water, and freshwater. The shells of bivalves commonly wash up on beaches (often as separate valves) and along the edges of lakes, rivers, and streams. Bivalves by definition possess two shells or ''valves'', a "right valve" and a "left valve", that are joined by a ligament. The two valves usually articulate with one another using structures known as "teeth" which are situated along the hinge line. In many bivalve shells, the two valves are symmetrical along the hinge line—when truly symmetrical, such an animal is said to be ''equivalved''; if the valves vary from each other in size or shape, ''inequivalved''. If symmetrical front-to-back, the valves are said to be ''equilateral'', and are otherwise considered ''in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donax Bertini
''Donax'' is the scientific name of two genera of organisms and may refer to: * ''Donax'' (bivalve), a genus of clams in the family Donacidae * ''Donax'' (plant), a genus of plants in the family Marantaceae {{Genus disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donax Clathratus
''Donax'' is the scientific name of two genera of organisms and may refer to: * ''Donax'' (bivalve), a genus of clams in the family Donacidae * ''Donax'' (plant), a genus of plants in the family Marantaceae {{Genus disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donax Carinatus
''Donax carinatus'' is a 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 s ... of small saltwater clam, a marine bivalve mollusc species in the family Donacidae. Description Shells of ''Donax carinatus'' can reach a length of , a height of and a diameter of . These shells are triangular-shaped, elongated, with a strong sculpture and anteriorly rostrated. The basic color of the external surface is purple and yellowish brown, with a purple interior.Angeline Myra KeeSea Shells of Tropical West America/ref> Distribution This species is present from Mexico to Colombia, in depths to 24 m. References * Coan E.V. & Kabat A.R. (2012) The malacological works and taxa of Sylvanius Hanley (1819–1899). Malacologia 55(2): 285-359. Donacidae Bivalves described in 1843 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Timothy Abbott Conrad
Timothy Abbott Conrad (June 21, 1803 in Trenton, New Jersey – August 9, 1877 in Trenton) was an American geologist and malacologist. Biography He was from early life an investigator of American paleontology and natural history, devoting himself to the study of the shells of the Tertiary and Cretaceous formations, and to existing species of mollusks. In 1831 he began the issue of a work on “American Marine Conchology,” and the year following published the first number of his “Fossil Shells of the Tertiary Formation,” which was never completed. A “Monography of the Family Unionidae” was issued between 1835 and 1847. The lithographed plates in his publications were in part his own work. He contributed many articles to the '' American Journal of Science'' and the ''Journal of the Philadelphia Academy of Science''. As one of the New York state geologists he prepared the geological report for 1837. He was paleontologist of the New York Geological Survey from 1838 until ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donax Californicus
''Donax'' is the scientific name of two genera of organisms and may refer to: * ''Donax'' (bivalve), a genus of clams in the family Donacidae * ''Donax'' (plant), a genus of plants in the family Marantaceae {{Genus disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philip Pearsall Carpenter
Philip Pearsall Carpenter (4 November 1819 – 24 May 1877) was an English minister who emigrated to Canada, where his field work as a malacologist or conchologist is still well regarded today. A man of many talents, he wrote, published, taught, and was a volunteer explaining the growing study of shells in North America. Life Philip P. Carpenter was born in Bristol, England on 4 November 1819. His father was Lant Carpenter, a notable educator and Unitarian minister. His mother was Anna or Hannah Penn, daughter of John Penn and Mary. Anna was christened on 11 May 1787 in Bromsgrove, Worcester.Carpenters' Encyclopedia of Carpenters 2009, DVD format. The subject in RIN 25572. P. P. Carpenter, as he was called, was educated at Trinity Bristol College, and then Manchester College (then at York, now at Oxford), gaining a BA from the University of London in 1841, the year of his ordination as a minister. Carpenter was a vegetarian and joined the Vegetarian Society in 1851. Carpent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donax Caelatus
''Donax'' is the scientific name of two genera of organisms and may refer to: * ''Donax'' (bivalve), a genus of clams in the family Donacidae * ''Donax'' (plant), a genus of plants in the family Marantaceae {{Genus disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donax Burnupi
''Donax'' is the scientific name of two genera of organisms and may refer to: * ''Donax'' (bivalve), a genus of clams in the family Donacidae * ''Donax'' (plant), a genus of plants in the family Marantaceae {{Genus disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donax Bruneirufi
''Donax'' is the scientific name of two genera of organisms and may refer to: * ''Donax'' (bivalve), a genus of clams in the family Donacidae * ''Donax'' (plant), a genus of plants in the family Marantaceae {{Genus disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edgar Albert Smith
Edgar Albert Smith (29 November 1847 – 22 July 1916) was a British zoologist, a malacologist. His father was Frederick Smith, a well-known entomologist, and assistant keeper of zoology in the British Museum, Bloomsbury. Edgar Albert Smith was educated both at the North London Collegiate School and privately, being well grounded in Latin amongst other subjects, as his excellent diagnoses bear witness. Smith married in July 1876. Subsequently, his wife and he had four sons and two daughters. He gave more prominent attention to the fauna of the African Great Lakes and the marine molluscs of South Africa, and also the nonmarine mollusk fauna of Borneo and New Guinea. In the British Museum Smith was employed at the British Museum (now Natural History Museum) as an assistant keeper of the zoological department for more than 40 years, from 1867 to 1913. Edgar Smith's first work was in connection with the celebrated collection of shells made by Hugh Cuming and acquired by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donax Brazieri
''Donax'' is the scientific name of two genera of organisms and may refer to: * ''Donax'' (bivalve), a genus of clams in the family Donacidae * ''Donax'' (plant), a genus of plants in the family Marantaceae {{Genus disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_(2).jpg "Click for more on -> Donax (bivalve)")
