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Paramelania
''Paramelania'' is a genus of tropical freshwater snails with an operculum, aquatic gastropod mollusks in the family Paludomidae. Distribution Species of the genus ''Paramelania'' live in Lake Tanganyika, Africa. Species There are two described species within the genus ''Paramelania'' and there may be more: * '' Paramelania damoni'' (Smith, 1881) - type species, it is a species or an aggregate species Aggregate or aggregates may refer to: Computing and mathematics * collection of objects that are bound together by a root entity, otherwise known as an aggregate root. The aggregate root guarantees the consistency of changes being made within the ... * '' Paramelania iridescens'' (Moore, 1898) Description The type description of the genus ''Paramelania'' by Edgar Albert Smith (1881) reads as follows: References This article incorporates public domain text from the references {{Taxonbar, from=Q7135190 Paludomidae Taxa named by Edgar Albert Smith Gastropod genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paramelania Damoni
''Paramelania damoni'' is a species of tropical freshwater snail with an operculum, an aquatic gastropod mollusk in the family Paludomidae. The specific name ''damoni'' is in honor of Robert Damon from Weymouth, who collected the type specimen. Distribution The distribution of this species includes Lake Tanganyika in Burundi, the Democratic Republic of the Congo, Tanzania, and Zambia. The type locality is Lake Tanganyika. Description ''Paramelania damoni'' was originally described by Edgar Albert Smith in 1881. Smith's original text (the type description) reads as follows: The width of the shell is 28 mm. The height of the shell is 37 mm. ''Paramelania crassigranulata'' was recognized as a form of this species by Brown (1994).Brown D. S. (1994). ''Freshwater Snails of Africa and their Medical Importance''. Taylor & Francis. . Ecology This snail lives in Lake Tanganyika Lake Tanganyika () is an African Great Lake. It is the second-oldest freshwa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paramelania Iridescens
''Paramelania iridescens'' is a species of tropical freshwater snail with an operculum, aquatic gastropod mollusk in the family Paludomidae. Distribution This species is found in Lake Tanganyika in Burundi, also in the Democratic Republic of the Congo, Tanzania, and Zambia. The type locality is towards the south shore near Sumbu, Lake Tanganyika, in depths of .Brown D. S. (1994). ''Freshwater Snails of Africa and their Medical Importance''. Taylor & Francis. . Shell description There is a spine in the upper part and in the lower part of the aperture of mature specimens. The width of the shell is 19 mm. The height of the shell is 40 mm. Ecology This snail lives in 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 is the world's longest freshwater lake. ... in depths of 10–150 m. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edgar Albert Smith
Edgar Albert Smith (29 November 1847 – 22 July 1916) was a British zoologist, a malacologist. His father was Frederick Smith, a well-known entomologist, and assistant keeper of zoology in the British Museum, Bloomsbury. Edgar Albert Smith was educated both at the North London Collegiate School and privately, being well grounded in Latin amongst other subjects, as his excellent diagnoses bear witness. Smith married in July 1876. Subsequently, his wife and he had four sons and two daughters. He gave more prominent attention to the fauna of the African Great Lakes and the marine molluscs of South Africa, and also the nonmarine mollusk fauna of Borneo and New Guinea. In the British Museum Smith was employed at the British Museum (now Natural History Museum) as an assistant keeper of the zoological department for more than 40 years, from 1867 to 1913. Edgar Smith's first work was in connection with the celebrated collection of shells made by Hugh Cuming and acquired by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 is the world's longest freshwater lake. The lake is shared among four countries—Tanzania, the Democratic Republic of the Congo (DRC), Burundi, and Zambia, with Tanzania (46%) and DRC (40%) possessing the majority of the lake. It drains into the Congo River system and ultimately into the Atlantic Ocean. Etymology "Tanganika" was the name of the lake that Henry Morton Stanley encountered when he was at Ujiji in 1876. The name first originated from the Bembe language when they arrived in South Kivu around the 7th century, they discovered the lake and started calling it “êtanga ‘ya’ni’â” which means “a big river” in their Bantu language. Stanley found also other names for the lake among different ethnic groups, like the Kimana, the Yemba and the Msaga. An alt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropod Shell
The gastropod shell is part of the body of a Gastropoda, gastropod or snail, a kind of mollusc. The shell is an exoskeleton, which protects from predators, mechanical damage, and dehydration, but also serves for muscle attachment and calcium storage. Some gastropods appear shell-less (slugs) but may have a remnant within the mantle, or in some cases the shell is reduced such that the body cannot be retracted within it (semi-slug). Some snails also possess an operculum that seals the opening of the shell, known as the Aperture (mollusc), aperture, which provides further protection. The study of mollusc shells is known as conchology. The biological study of gastropods, and other molluscs in general, is malacology. Shell morphology terms vary by species group. Shell layers The gastropod shell has three major layers secreted by the Mantle (mollusc), mantle. The calcareous central layer, tracum, is typically made of calcium carbonate precipitated into an organic matrix known as c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquatic Animal
An aquatic animal is any animal, whether invertebrate or vertebrate, that lives in water for most or all of its lifetime. Many insects such as mosquitoes, mayflies, dragonflies and caddisflies have aquatic larvae, with winged adults. Aquatic animals may breathe air or extract oxygen from water through specialised organs called gills, or directly through the skin. Natural environments and the animals that live in them can be categorized as aquatic (water) or terrestrial (land). This designation is polyphyletic. Description The term aquatic can be applied to animals that live in either fresh water or salt water. However, the adjective marine is most commonly used for animals that live in saltwater, i.e. in oceans, seas, etc. Aquatic animals (especially freshwater animals) are often of special concern to conservationists because of the fragility of their environments. Aquatic animals are subject to pressure from overfishing, destructive fishing, marine pollution, hunting, and cli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropod Genera
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 repro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Edgar Albert Smith
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the intro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tiphobia
''Tiphobia horei'' is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Paludomidae. ''Tiphobia horei'' is the only species in the genus ''Tiphobia''.Brown D. S. (1994). ''Freshwater Snails of Africa and their Medical Importance'', pp. 150–151. Taylor & Francis. . ''Tiphobia'' is the type genus of the tribe Tiphobiini. The specific name ''horei'' is in honor of Reverend Edward Coode Hore (1848-1912) from the UK. Distribution and habitat ''Tiphobia horei'' is endemic to Lake Tanganyika. It is found in Burundi, the Democratic Republic of the Congo, Tanzania, and Zambia. The type locality is Lake Tanganyika at Ujiji. It is typically found on muddy bottoms and often near river mouths. It ranges from the shoreline to a depth of about but tends to be more common in deeper waters. Description ''Tiphobia horei'' has a large shell with spines, so it is easily to determine. The width of the shell typically is , and the height typically ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Last Whorl
The body whorl is part of the morphology of the shell in those gastropod mollusks that possess a coiled shell. The term is also sometimes used in a similar way to describe the shell of a cephalopod mollusk. In gastropods In gastropods, the body whorl, or last whorl, is the most recently formed and largest whorl (or revolution) of a spiral or helical shell, terminating in the aperture. It is called the "body whorl" because most of the body of the soft parts of the animal fits into this whorl. The proportional size of the body whorl in gastropod shells differs greatly according to the actual shell morphology. For shells in which the rate of whorl expansion of each revolution around the axis is very high, the aperture and the body whorl are large, and the shell tends to be low spired. The shell of the abalone is a good example of this kind of shell. The opposite tendency can sometimes create a high spire with very little whorl increase per revolution. In these instances, e.g. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aperture (mollusc)
The aperture is an opening in certain kinds of mollusc shells: it is the main opening of the shell, where the head-foot part of the body of the animal emerges for locomotion, feeding, etc. The term ''aperture'' is used for the main opening in gastropod shells, scaphopod shells, and also for ''Nautilus'' and ammonite shells. The word is not used to describe bivalve shells, where a natural opening between the two shell valves in the closed position is usually called a ''gape''. Scaphopod shells are tubular, and thus they have two openings: a main anterior aperture and a smaller posterior aperture. As well as the aperture, some gastropod shells have additional openings in their shells for respiration; this is the case in some Fissurellidae (keyhole limpets) where the central smaller opening at the apex of the shell is called an orifice, and in the Haliotidae (abalones) where the row of respiratory openings in the shell are also called orifices. In gastropods In some prosobranch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
