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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] |
Valve (mollusc)
A valve is each articulating part of the shell of a mollusc or another multi-shelled animal such as brachiopods and some crustaceans. Each part is known as a valve or in the case of chitons, a "plate". Members of two classes of molluscs, the Bivalvia (clams) and the Polyplacophora (chitons), have valves. Species within one family of very unusual small sea snails, marine opisthobranch gastropods in the family Juliidae, also have two articulating shells or valves, which resemble those of a bivalve. This exceptional family is commonly known as the bivalved gastropods. Gastropods in general are sometimes called "univalves", because in those that have a shell, the shell is usually in one part. Chitons The valves of chitons are eight dorsal, articulated shell plates, which are frequently coloured and sculpted. After death the girdle that holds the plates together disintegrates and the plates separate. Thus individual plates can be found washed up in beach drift, as shown in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sylvanus Charles Thorp Hanley
Sylvanus Charles Thorp Hanley (1819–1899) was a British conchologist and malacologist who published the first book on shells using the then new technique of photography. He authored ''Conchologia indica'' with William Theobald which was a treatise on the shells of British India. The plates were drawn and lithographed by ''George Brettingham Sowerby the younger'', who was well known for writing and illustrating excellent works of natural history, especially conchological works. Sowerby became the best illustrator of conchological works of his time, illustrating such classics as Reeve's monumental twenty-volume ''Conchologia Iconica''. Sylvanus Hanley inherited a fortune, which enabled him to devote a lifetime to conchology. He was especially interested in the bivalves, on which he was a leading authority. He published over 40 books and scientific papers, and described over 200 new species. Hanley collected molluscs extensively; most of his collections are today held at Leeds City ... [...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] |
Charles Baker Adams
Charles Baker Adams (January 11, 1814 – January 19, 1853) was an American educator and naturalist. Biography He was born in Dorchester, Massachusetts in 1814, the son of Charles J. Adams and Hannah Baker. He graduated from Phillips Academy in 1830 and Amherst College in 1834 with high honors (having transferred from Yale University to Amherst in 1832), and became an assistant to Edward Hitchcock in the Geological Survey of New York in 1836. In 1837, he became a tutor and a lecturer in geology at Amherst College. He left to become professor of chemistry and natural history at Middlebury College in 1838, remaining in that position through 1847. He served as the first state geologist of Vermont from 1845 through 1848. In 1847, he left Middlebury to become professor of astronomy, zoology, and natural history at Amherst College, a position he retained till his death in 1853, aged 39. He visited the West Indies several times in the interest of science, and wrote on conchology. He was ... [...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] |
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, |
Bivalve
Bivalvia (), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, bivalves have no head and they lack some usual molluscan organs, like the radula and the odontophore. They include the clams, oysters, cockles, mussels, scallops, and numerous other families that live in saltwater, as well as a number of families that live in freshwater. The majority are filter feeders. The gills have evolved into ctenidia, specialised organs for feeding and breathing. Most bivalves bury themselves in sediment, where they are relatively safe from predation. Others lie on the sea floor or attach themselves to rocks or other hard surfaces. Some bivalves, such as the scallops and file shells, can swim. The shipworms bore into wood, clay, or stone and live inside these substances. The shell of a bivalve is composed of calc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 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 gastropods ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donacidae
The Donacidae, the "bean clams" or "wedge shells", are a family of bivalve molluscs of the superfamily Tellinoidea. The family is related to the ''Tellina''. The Donacidae are prolific filter feeders and are an important part of coastal food chains where they occur. The family is sensitive to coastal industry such as dam-building and dredging. Description Members of this family have asymmetric, elongated, compressed shells. The two siphons are short but are completely divided, and the foot is large. They are vigorous burrowers.Barrett, J. H. and C. M. Yonge, 1958. Collins Pocket Guide to the Sea Shore. P. 160. Collins, London Genera *'' Capsella'' **'' Capsella variegata'' *'' Donax'' Linnaeus, 1758 *''Iphigenia'' Schumacher, 1817 **'' Iphigenia brasiliana'' (Lamarck Jean-Baptiste Pierre Antoine de Monet, chevalier de Lamarck (1 August 1744 – 18 December 1829), often known simply as Lamarck (; ), was a French naturalist, biologist, academic, and soldier. He was an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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