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Amastra Forbesi
''Amastra forbesi'' was a species of gastropod in the Amastridae family. It was endemic to Hawaii Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only .... References Amastra Extinct gastropods Taxonomy articles created by Polbot {{Amastridae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wesley Newcomb
Wesley Newcomb (1818–1892) was an American physician and a malacologist who specialized in land snails. Life Wesley Newcomb was born in New York in 1818. His father was physician Simon Newcomb.portrait He studied medicine at the Jefferson Medical College (now ) and in . He traveled to |
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] |
Amastridae
Amastridae is a taxonomic family of small, air-breathing, land snails, terrestrial pulmonate gastropod mollusks in the superfamily Pupilloidea. MolluscaBase eds. (2021). MolluscaBase. Amastridae Pilsbry, 1910. Accessed through: World Register of Marine Species at: http://marinespecies.org/aphia.php?p=taxdetails&id=994718 on 2021-02-21 Distribution This family is endemic to the Hawaiian Islands The Hawaiian Islands ( haw, Nā Mokupuni o Hawai‘i) are an archipelago of eight major islands, several atolls, and numerous smaller islets in the North Pacific Ocean, extending some from the island of Hawaii in the south to northernmost Kur .... Genera ;Subfamily Amastrinae Pilsbry, 1910 * '' Amastra'' H. Adams & A. Adams, 1855 * '' Carelia'' H. Adams & A. Adams, 1855 * '' Cyclamastra'' * '' Kauaia'' * '' Laminella'' L. Pfeiffer, 1854 * '' Planamastra'' Hyatt & Pilsbry, 1911 * '' Tropidoptera'' Ancey, 1889 ;Subfamily Leptachatininae Cockerell, 1913 * '' Armsia'' Hyatt & Pilsbr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example ''Cytisus aeolicus'' is an endemite of the Italian flora. ''Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hawaii
Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only state geographically located within the tropics. Hawaii comprises nearly the entire Hawaiian archipelago, 137 volcanic islands spanning that are physiographically and ethnologically part of the Polynesian subregion of Oceania. The state's ocean coastline is consequently the fourth-longest in the U.S., at about . The eight main islands, from northwest to southeast, are Niihau, Kauai, Oahu, Molokai, Lānai, Kahoolawe, Maui, and Hawaii—the last of these, after which the state is named, is often called the "Big Island" or "Hawaii Island" to avoid confusion with the state or archipelago. The uninhabited Northwestern Hawaiian Islands make up most of the Papahānaumokuākea Marine National Monument, the United States' largest prot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amastra
''Amastra'' is a genus of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Amastridae. MolluscaBase eds. (2021). MolluscaBase. Amastra H. Adams & A. Adams, 1855. Accessed through: World Register of Marine Species at: http://marinespecies.org/aphia.php?p=taxdetails&id=995681 on 2021-02-21 This genus is endemic to the Hawaiian Islands. Many of the species in this genus have become extinct in recent times. Species Species within the genus ''Amastra'' include: * † '' Amastra albolabris'' * '' Amastra anthonii'' W. Newcomb, 1861 * † ''Amastra cornea'' * † ''Amastra crassilabrum'' * ''Amastra cyclostoma'' (Baldwin, 1895) * ''Amastra cylindrica'' * ''Amastra delicata'' C. M. Cooke, 1933 * '' Amastra dwightii'' C. M. Cooke, 1933 * † '' Amastra elongata'' * † '' Amastra forbesi'' * † '' Amastra globosa'' C. M. Cooke, 1933 * ''Amastra gulickiana'' A. Hyatt & H.A. Pilsbry, 1911 * ''Amastra implicata'' C. M. Cooke, 1933 * '' Amastra in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinct Gastropods
Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the fossil record) after a period of apparent absence. More than 99% of all species that ever lived on Earth, amounting to over five billion species, are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryote globally, and possibly many times more if microorganisms, like bacteria, are included. Notable extinct animal species include non-avian dinosaurs, saber-toothed cats, dodos, mam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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