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Reymondia Pyramidalis
''Reymondia pyramidalis'' is a species of small freshwater snail, an aquatic gastropod mollusk in the family Paludomidae. This species is found in Tanzania and possibly the Democratic Republic of the Congo. Its natural habitat is freshwater lake A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ...s. The shells of this species are similar in appearance to, though slightly smaller than, '' Reymondia horei''. The maximum size of the shell is height by width at the widest point. It also has a similar habitat preference to ''R. horei'': shallow water, underneath cobbles and rocks. References Paludomidae Fauna of Tanzania Gastropods described in 1888 Taxonomy articles created by Polbot Taxa named by Jules René Bourguignat {{Paludomidae-stub ...
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Jules René Bourguignat
Jules René Bourguignat (19 August 1829, Brienne-le-Château, Brienne-Napoléon, Aube – 7 April 1892) was a French malacologist, a scientist who studied mollusks. He served as secretary-general of the ''Société malacologique de France''. He traveled widely, visiting, for example, Lake Tanganyika and North Africa. He reportedly defined 112 new genera and around 2540 new species of mollusks. Taxa Bourguignat named and described many genera and species of mollusks, including: * ''Aspatharia'' Bourguignat, 1885, a genus of freshwater mussel. * ''Bridouxia'' Bourguignat, 1885, a genus of freshwater snail. * ''Lanistes alexandri'' Bourguignat, 1850, a species of freshwater snail. * ''Reymondia'' Bourguignat, 1885, a genus of freshwater snail. * ''Spekia'' Bourguignat, 1879, a genus of freshwater snail.GBIF
Spekia Bourguignat, 1879


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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 ...
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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 ...
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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 ...
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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 gas ...
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Paludomidae
Paludomidae, common name paludomids, is a family of freshwater snails, gastropod molluscs in the clade Sorbeoconcha. Distribution The distribution of the Paludomidae includes Asia and Africa. Taxonomy The following three subfamilies have been recognized in the taxonomy of Bouchet & Rocroi (2005): * Paludominae Stoliczka, 1868 - synonym: Philopotamidinae Stache, 1889 * Cleopatrinae Pilsbry & Bequaert, 1927 * Hauttecoeuriinae Bourguignat, 1885 ** tribe Hauttecoeuriini Bourguignat, 1885 - synonym: Tanganyiciinae Bandel, 1998 ** tribe Nassopsini Kesteven, 1903 - synonym: Lavigeriidae Thile, 1925 ** tribe Rumellini Ancey, 1906 Ancey C. F. (1906). "Réflexions sur la Faune Malacologique du Lac Tanganika et Catalogue des Mollusques de ce Lac". ''Bulletin Scientifique de la France et de la Belgique'' 40229270245246. ** tribe Spekiini Ancey, 1906 - synonyms: Giraudiidae Bourguignat, 1885 (inv.); Reymondiinae Bandel, 1998 ** tribe Syrnolopsini Bourguignat, 1890 ** tribe Tiphobiini Bo ...
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List Of Non-marine Molluscs Of Tanzania
The non-marine molluscs of Tanzania are a part of the molluscan fauna of Tanzania (wildlife of Tanzania). A number of species of non-marine molluscs are found in the wild in Tanzania. There are 417 species of land snails in Tanzania.Wronski T. & Hausdorf B. (2010). "Diversity and body-size patterns of land snails in rain forests in Uganda". ''Journal of Molluscan Studies'' 76(1): 87-100. . Freshwater gastropods Thiaridae * ''Melanoides tuberculata'' (O. F. Müller, 1774) Lymnaeidae * ''Radix natalensis'' (Krauss, 1848) Land gastropods Land gastropods in Tanzania include: Assimineidae - otherwise marine or salt marsh family, the terrestrial assimineid occur in Tanzania * ''"Assiminea" aurifera'' Preston, 1912 - previously '' Assimania aurifera''Rowson B., Warren B. H. & Ngereza C. F. (2010). "Terrestrial molluscs of Pemba Island, Zanzibar, Tanzania, and its status as an "oceanic" island". ''ZooKeys'' 70: 1-39. . Cyclophoridae * ''Cyathopoma azaniense'' Verdcourt ...
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Democratic Republic Of The Congo
The Democratic Republic of the Congo (french: République démocratique du Congo (RDC), colloquially "La RDC" ), informally Congo-Kinshasa, DR Congo, the DRC, the DROC, or the Congo, and formerly and also colloquially Zaire, is a country in Central Africa. It is bordered to the northwest by the Republic of the Congo, to the north by the Central African Republic, to the northeast by South Sudan, to the east by Uganda, Rwanda, and Burundi, and by Tanzania (across Lake Tanganyika), to the south and southeast by Zambia, to the southwest by Angola, and to the west by the South Atlantic Ocean and the Cabinda exclave of Angola. By area, it is the second-largest country in Africa and the 11th-largest in the world. With a population of around 108 million, the Democratic Republic of the Congo is the most populous officially Francophone country in the world. The national capital and largest city is Kinshasa, which is also the nation's economic center. Centered on the Cong ...
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Habitat
In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical manifestation of its ecological niche. Thus "habitat" is a species-specific term, fundamentally different from concepts such as environment or vegetation assemblages, for which the term "habitat-type" is more appropriate. The physical factors may include (for example): soil, moisture, range of temperature, and light intensity. Biotic factors will include the availability of food and the presence or absence of predators. Every species has particular habitat requirements, with habitat generalist species able to thrive in a wide array of environmental conditions while habitat specialist species requiring a very limited set of factors to survive. The habitat of a species is not necessarily found in a geographical area, it can be the interior ...
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Lake
A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much larger oceans, they do form part of the Earth's water cycle. Lakes are distinct from lagoons, which are generally coastal parts of the ocean. Lakes are typically larger and deeper than ponds, which also lie on land, though there are no official or scientific definitions. Lakes can be contrasted with rivers or streams, which usually flow in a channel on land. Most lakes are fed and drained by rivers and streams. Natural lakes are generally found in mountainous areas, rift zones, and areas with ongoing glaciation. Other lakes are found in endorheic basins or along the courses of mature rivers, where a river channel has widened into a basin. Some parts of the world have many lakes formed by the chaotic drainage patterns left over from the la ...
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Reymondia Horei
''Reymondia horei'' is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Paludomidae. This species is found in Burundi, the Democratic Republic of the Congo, Tanzania, and Zambia. Its natural habitat is freshwater lakes. This species co-occurs with, and is sometimes confused with ''Reymondia pyramidalis''. It is, however, a separate species. Description The shells of ''R. horei'' are composed of six reddish-brown whorls, which are smoothly curved. There is a white band on all whorls. The overall height of the shell ranges from , and diameter from . The visible soft parts of the animal are colored grey or olive green, with a brown foot and white sole. Habitat This is a freshwater-adapted species, endemic to Lake Tanganyika Lake Tanganyika () is an African Great Lake. It is the second-oldest freshwater lake in the world, the second-largest by volume, and the second-deepest, in all cases after Lake Baikal in Siberia. It ...
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Fauna Of Tanzania
Tanzania contains some 20 percent of the species of Africa's large mammal population, found across its reserves, conservation areas, marine parks, and 17 national parks, spread over an area of more than and forming approximately 38 percent of the country's territory.Briggs, pp. 1–31 Wildlife resources of Tanzania are described as "without parallel in Africa" and "the prime game viewing country". Serengeti National Park, the country's second largest national park area at , is located in northern Tanzania and is famous for its extensive migratory herds of wildebeests and zebra while also having the reputation as one of the great natural wonders of the world. The Ngorongoro Conservation Area, established in 1959, is a UNESCO World Heritage Site and inhabited by the Maasai people. Its Ngorongoro Crater is the largest intact caldera in the world. The national parks are also part of the wetlands of Tanzania. The wild animals tend to be closer to the wetlands, particularly the water ...
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