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Semisulcospira Pacificans
''Semisulcospira pacificans'' is a species of freshwater snail with an operculum, an aquatic gastropod mollusc in the family Semisulcospiridae. Distribution This species occurs in Anhui Province and Zhejiang Province in Eastern China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and .... Ecology ''Semisulcospira pacificans'' lives in fluvial habitats. References External links * Heude P. M. (1888). (1882–1890). "Notes sur les Mollusques terrestres de la vallée du Fleuve Bleu". ''Mémoires concernant l'histoire naturelle de l'empire chinois par des pères de la Compagnie de Jésus'', Mision Catholique, Chang-Hai. (1890). 4: 125 ic188, plates 33-43page 164-165 [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pierre Marie Heude
Pierre Marie Heude (25 June 1836 – 3 January 1902) was a French Jesuit missionary and zoologist. Life Born at Fougères in the Department of Ille-et-Vilaine, Heude became a Jesuit in 1856 and was ordained to the priesthood in 1867. He went to China in 1868. During the following years, he devoted all his time and energy to the studies of the natural history of Eastern Asia, traveling widely in China and other parts of Eastern Asia. The first fruits of his research concern the mollusks: his ''Conchyliologie fluviatile de la province de Nanking (et de la Chine centrale)'' was published in Paris between 1876 and 1885 in 10 volumes; his ''Notes sur le mollusques terrestres de la vallée du Fleuve Bleu'' can be found in the first volume of the ''Mémoires concernant l'histoire naturelle de l'Empire Chinois'', founded by the Jesuits of Xujiahui, Shanghai in 1882. Later he turned his attentions to mammals. With his remarkable collection of specimens, he helped to set up a museum of nat ... [...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] |
Freshwater Snail
Freshwater snails are gastropod mollusks which live in fresh water. There are many different families. They are found throughout the world in various habitats, ranging from ephemeral pools to the largest lakes, and from small seeps and springs to major rivers. The great majority of freshwater gastropods have a shell, with very few exceptions. Some groups of snails that live in freshwater respire using gills, whereas other groups need to reach the surface to breathe air. In addition, some are amphibious and have both gills and a lung (e.g. ''Ampullariidae''). Most feed on algae, but many are detritivores and some are filter feeders. According to a 2008 review of the taxonomy, there are about 4,000 species of freshwater gastropods (3,795–3,972). At least 33–38 independent lineages of gastropods have successfully colonized freshwater environments. It is not possible to quantify the exact number of these lineages yet, because they have yet to be clarified within the Cerit ... [...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] |
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, and re ... [...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] |
Semisulcospiridae
Semisulcospiridae, common name semisulcospirids, is a family of freshwater snails, aquatic gilled gastropod mollusks with an operculum, in the superfamily Cerithioidea. MolluscaBase eds. (2021). MolluscaBase. Semisulcospiridae J. P. E. Morrison, 1952. Accessed through: World Register of Marine Species at: http://marinespecies.org/aphia.php?p=taxdetails&id=715954 on 2021-03-08 Semisulcospiridae diversified from the Pleuroceridae about 90 million years ago, in the Cretaceous. Distribution The family Semisulcospiridae occurs in western North America, the Far East of Russia, Korea, Japan, China and Vietnam. Taxonomy The family Semisulcospiridae was introduced as just a name ( nomen nudum) by Morrison (1952), without a diagnosis of the taxon. It is a valid taxon however, because its name has been used as valid. 2005 taxonomy According to the taxonomy of Bouchet & Rocroi (2005), Semisulcospiridae was a subfamily within the family Pleuroceridae. 2009 taxonomy The s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anhui
Anhui , (; formerly romanized as Anhwei) is a landlocked province of the People's Republic of China, part of the East China region. Its provincial capital and largest city is Hefei. The province is located across the basins of the Yangtze River and the Huai River, bordering Jiangsu to the east, Zhejiang to the southeast, Jiangxi to the south, Hubei to the southwest, Henan to the northwest, and Shandong for a short section in the north. With a population of 63.65 million, Anhui is the 8th most populous province in China. It is the 22nd largest Chinese province based on area, and the 12th most densely-populated region of all 34 Chinese provincial regions. Anhui's population is mostly composed of Han Chinese. Languages spoken within the province include Jianghuai Mandarin, Wu, Hui, Gan and small portion of Zhongyuan Mandarin Chinese. The name "Anhui" derives from the names of two cities: Anqing and Huizhou (now Huangshan City). The abbreviation for Anhui is "" after the histori ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zhejiang
Zhejiang ( or , ; , also romanized as Chekiang) is an eastern, coastal province of the People's Republic of China. Its capital and largest city is Hangzhou, and other notable cities include Ningbo and Wenzhou. Zhejiang is bordered by Jiangsu and Shanghai to the north, Anhui to the northwest, Jiangxi to the west and Fujian to the south. To the east is the East China Sea, beyond which lies the Ryukyu Islands. The population of Zhejiang stands at 64.6 million, the 8th highest among China. It has been called 'the backbone of China' due to being a major driving force in the Chinese economy and being the birthplace of several notable persons, including the Chinese Nationalist leader Chiang Kai-shek and entrepreneur Jack Ma. Zhejiang consists of 90 counties (incl. county-level cities and districts). The area of Zhejiang was controlled by the Kingdom of Yue during the Spring and Autumn period. The Qin Empire later annexed it in 222 BC. Under the late Ming dynasty and the Qing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Non-marine Molluscs Of China
The non-marine mollusks of China are a part of the molluscan fauna of China (wildlife of China). A number of species of non-marine mollusks are found in the wild in China. Freshwater gastropods Amnicolidae * '' Erhaia chinensis'' (Liu & Zhang, 1979)Edmund Gittenberger, Choki Gyeltshen & Björn Stelbrink (2022). "The genus Erhaia (Gastropoda, Truncatelloidea, Amnicolidae), with a new species from Bhutan". ZooKeys 1085: 1–9. doi: 10.3897/zookeys.1085.77900 * ''Erhaia daliensis'' Davis & Kuo in Davis et al., 1985 * ''Erhaia gongjianguoi'' (Kang, 1983) * '' Erhaia hubeiensis'' (Liu, Zhang & Wang, 1983) * '' Erhaia jianouensis'' (Liu & Zhang, 1979) * '' Erhaia kunmingensis'' Davis & Kuo in Davis et al., 1985 * ''Erhaia lii'' (Kang, 1985) * '' Erhaia liui'' (Kang, 1985) * '' Erhaia robusta'' (Kang, 1986) * '' Erhaia shimenensis'' (Liu, Zhang & Chen, 1982) * ''Erhaia tangi'' (Cheng, Wu, Li & Lin, 2007) * ''Erhaia triodonta'' (Liu, Wang & Zhang, 1991) * ''Erhaia wantanensis'' (Kang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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