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Planogyra Clappi
''Planogyra clappi'' is a species of gastropods belonging to the family Valloniidae. The species is found in Northern America. The species is named in honor of American businessmann and malacologist George Hubbard Clapp George Hubbard Clapp (1858–1949) was an American pioneer in the aluminum industry and also a numismatist. He was born on December 14 in Allegheny City, Pennsylvania, now a part of Pittsburgh, the son of Delia Dennig Hubbard and DeWitt Clinton .... References Valloniidae {{Improve categories, date=February 2022 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropods
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, feedi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valloniidae
Valloniidae is a taxonomic family of small and minute, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Pupilloidea. MolluscaBase eds. (2020). MolluscaBase. Valloniidae Morse, 1864. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=593139 on 2020-08-24 Anatomy In this family, the number of haploid chromosomes lies between 26 and 30 (according to the values in this table).Barker G. M.: Gastropods on Land: ''Phylogeny, Diversity and Adaptive Morphology''. in Barker G. M. (ed.): The biology of terrestrial molluscs'. CABI Publishing, Oxon, UK, 2001, . 1-146, cited pages: 139 and 142. Taxonomy The family Valloniidae has no subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). Genera Genera within the family Valloniidae include: * † '' Acanthopupa'' Wenz in Fischer & Wenz, 1914 * † '' Esuinella'' Harzhauser, Neubauer & Georgopoulou in Harzhaus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Hubbard Clapp
George Hubbard Clapp (1858–1949) was an American pioneer in the aluminum industry and also a numismatist. He was born on December 14 in Allegheny City, Pennsylvania, now a part of Pittsburgh, the son of Delia Dennig Hubbard and DeWitt Clinton Clapp, an iron company executive. He graduated from the Western University of Pennsylvania, today's University of Pittsburgh, in 1877. He married Anne Love in 1882 and the couple had two children. Clapp took an engineering position at Park Brothers' Black Diamond Steel Works. There, along with Captain Alfred E. Hunt, he established the Pittsburgh Testing Laboratory's chemistry department. Hunt formed a company in 1888 to exploit the Charles Martin Hall patents for making aluminum by electrolysis. Clapp was treasurer and secretary of the fledgling company. He resigned as treasurer in 1892 and was replaced by Andrew W. Mellon. The company became later known as the Aluminium Company of America. While Hall is generally credited with the inv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
