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Clappia (gastropod)
''Clappia'' is a genus of small freshwater snails that have an operculum, aquatic gastropod mollusks in the family Lithoglyphidae. MolluscaBase eds. (2022). MolluscaBase. Clappia B. Walker, 1909. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=887026 on 2022-04-22 Thompson F. G. (1984). "North American freshwater snail genera of the hydrobiid subfamily Lithoglyphinae". ''Malacologia'' 25(1)109141. Generic name ''Clappia'' is in honor of malacologist George Hubbard Clapp. Species There are two species within the genus ''Clappia'': * '' Clappia cahabensis'' Clench, 1965 - Cahaba pebblesnail The Cahaba pebblesnail, scientific name ''Clappia cahabensis'', was a species of very small freshwater snail, aquatic animal, aquatic gastropod mollusks in the family Lithoglyphidae.Thompson F. G. (1984). "North American freshwater snail genera o ... * † '' Clappia umbilicata'' (Walker, 1904) - Umbilicate pebblesnail, type ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operculum (gastropod)
The operculum (; ) is a corneous or calcareous anatomical structure like a trapdoor that exists in many (but not all) groups of sea snails and freshwater snails, and also in a few groups of land snails; the structure is found in some marine and freshwater gastropods, and in a minority of terrestrial gastropods, including the families Helicinidae, Cyclophoridae, Aciculidae, Maizaniidae, Pomatiidae, etc. The operculum is attached to the upper surface of the foot and in its most complete state, it serves as a sort of "trapdoor" to close the aperture of the shell when the soft parts of the animal are retracted. The shape of the operculum varies greatly from one family of gastropods to another. It is fairly often circular, or more or less oval in shape. In species where the operculum fits snugly, its outline corresponds exactly to the shape of the aperture of the shell and it serves to seal the entrance of the shell. Many families have opercula that are reduced in size, and which a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithoglyphidae
Lithoglyphidae is a family of small freshwater snails with gills and an operculum, aquatic gastropod mollusks. This family is in the superfamily Truncatelloidea and in the clade Littorinimorpha (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). Taxonomy Taylor (1966), Ponder & Warén (1988) and Kabat & Hershler (1993)Kabat A. R. & Hershler R. (1993). "The prosobranch snail family Hydrobiidae (Gastropoda: Rissooidea): review of classification and supraspecific taxa". ''Smithsonian Contributions to Zoology'' 547: 1-94PDF considered this taxon as a subfamily Lithoglyphinae within Hydrobiidae. Radoman (1983) considered Lithoglyphidae as a separate family. Bernasconi (1992) considered this taxon as a tribe Lithoglyphini in the Hydrobiinae within Hydrobiidae. 2005 taxonomy The family Lithoglyphidae consists of 2 subfamilies according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005. It follows Wilke et al. (2001), Hausdorf et al. (2003) and includ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clappia Umbilicata Shell
''Clappia'' is the scientific name of two genera of organisms and may refer to: * ''Clappia'' (gastropod), a genus of snails in the family Lithoglyphidae * ''Clappia'' (plant), a genus of plants in the family Asteraceae {{Genus disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Umbilicate Pebblesnail
''Clappia umbilicata'', the umbilicate pebblesnail, was a species of small freshwater snail that had an operculum, an aquatic gastropod mollusk in the family Lithoglyphidae.Thompson F. G. (1984). "North American freshwater snail genera of the hydrobiid subfamily Lithoglyphinae". ''Malacologia'' 25(1)109141. This species is now extinct. Distribution This species was endemic to the State of Alabama in the United States. The type locality is the Coosa River at Wetumpka, Alabama. The distribution of this species used to include: Coosa River at Duncan's Ripple, The Bar and Higgin's Ferry in Chilton County; and Butting Ram Shoals in Coosa County, Alabama.Clench W. J. (1965). "A new species of ''Clappia'' from Alabama". '' The Nautilus'' 79(1)3334Figure 2 File:Map of Alabama highlighting Chilton County.svg, Chilton County, Alabama (marked red) where the species was found File:Map of Alabama highlighting Coosa County.svg, Coosa County, Alabama (marked red) where the species was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cahaba Pebblesnail
The Cahaba pebblesnail, scientific name ''Clappia cahabensis'', was a species of very small freshwater snail, aquatic animal, aquatic gastropod mollusks in the family Lithoglyphidae.Thompson F. G. (1984). "North American freshwater snail genera of the hydrobiid subfamily Lithoglyphinae". ''Malacologia'' 25(1)109141. This species is named after the Cahaba River. This species is Endemism, endemic to the United States. This species was listed as extinct in the 2006 and 2010 IUCN Red List. It was thought to be extinct because of water pollution coming from Coal mining#Surface mining, modern surface mining of coal in Coal mining in the United States, the USA. Until recently the Cahaba pebblesnail was believed to be extinct, one of 34 snail species fallen victim to dams built along the Coosa River between 1917 and 1967. In 2004 however, biologists discovered the snail living less than fifty miles to the west, in Alabama's Cahaba River, which parallels the Coosa.Nijhuis M. (August 2009 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clappia Cahabensis
The Cahaba pebblesnail, scientific name ''Clappia cahabensis'', was a species of very small freshwater snail, aquatic gastropod mollusks in the family Lithoglyphidae.Thompson F. G. (1984). "North American freshwater snail genera of the hydrobiid subfamily Lithoglyphinae". ''Malacologia'' 25(1)109141. This species is named after the Cahaba River. This species is endemic to the United States. This species was listed as extinct in the 2006 and 2010 IUCN Red List. It was thought to be extinct because of water pollution coming from modern surface mining of coal in the USA. Until recently the Cahaba pebblesnail was believed to be extinct, one of 34 snail species fallen victim to dams built along the Coosa River between 1917 and 1967. In 2004 however, biologists discovered the snail living less than fifty miles to the west, in Alabama's Cahaba River, which parallels the Coosa.Nijhuis M. (August 2009)"River Of Riches: The Cahaba". '' Smithsonian''. accessed 24 July 2009. Descrip ... [...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] |
Malacologia
''Malacologia'' is a peer-reviewed scientific journal in the field of malacology, the study of mollusks. The journal publishes articles in the fields of molluscan systematics, ecology, population ecology, genetics, molecular genetics, evolution, and phylogenetics. The journal specializes in publishing long papers and monographs. The journal publishes at least one, sometimes two, volumes of about 400 pages per year, which may consist of 1 or 2 issues. According to the ''Journal Citation Reports,'' its 2019 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as ... is 13.5. This ranks ''Malacologia'' 1st out of 145 listed journals in the category "Zoology". The journal started publication in 1962. See also *'' Archiv für Molluskenkunde'' *'' Basteria'' *'' Journal of Concholo ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clappia Umbilicata
''Clappia umbilicata'', the umbilicate pebblesnail, was a species of small freshwater snail that had an operculum, an aquatic gastropod mollusk in the family Lithoglyphidae.Thompson F. G. (1984). "North American freshwater snail genera of the hydrobiid subfamily Lithoglyphinae". ''Malacologia'' 25(1)109141. This species is now extinct. Distribution This species was endemic to the State of Alabama in the United States. The type locality is the Coosa River at Wetumpka, Alabama. The distribution of this species used to include: Coosa River at Duncan's Ripple, The Bar and Higgin's Ferry in Chilton County; and Butting Ram Shoals in Coosa County, Alabama.Clench W. J. (1965). "A new species of ''Clappia'' from Alabama". '' The Nautilus'' 79(1)3334Figure 2 File:Map of Alabama highlighting Chilton County.svg, Chilton County, Alabama (marked red) where the species was found File:Map of Alabama highlighting Coosa County.svg, Coosa County, Alabama (marked red) where the species wa ... [...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, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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