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Graecoanatolica Macedonica
''Graecoanatolica macedonica'' is an extinct species of small freshwater snail, an aquatic gastropod mollusk in the family Hydrobiidae. Distribution This species existed only in a single habitat, in Dojran Lake Doiran Lake (, ''Dojransko Ezero''; , ''Límni Dhoïráni''), also spelled Dojran Lake is a lake with an area of shared between North Macedonia () and Greece (). To the west is the city of Nov Dojran (Нов Дојран), to the east the vill ..., situated on the border between Greece and what is today North Macedonia. The population of the snail began to decline in the 1970s. Researchers were unable to locate any members of the species after 1992, and it is now presumed extinct.Ryan, S. and Griffiths, H.I. 2001. ''The decline and probable extinction of Graecoanatolica macedonica (Gastropoda: Orientallnidae) in Balkan Lake Dorjan''. Journal of Conchology 37:261-265. References Hydrobiidae Graecoanatolica Extinct gastropods Gastropods described in 1978 ... [...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] |
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
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] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrobiidae
Hydrobiidae, commonly known as mud snails, is a large cosmopolitan family of very small freshwater and brackish water snails with an operculum; they are in the order Littorinimorpha. Distribution Hydrobiidae are found in much of the world, inhabiting all continents except Antarctica. In Australia alone there are over 260 species in the family. Description These are very small or minute snails, with a shell height of less than 8 mm. The dextrally-coiled shells are smooth (except for growth lines conforming to the shape of the outer lip) and are usually rather nondescript. The shell offers very few robust characteristics to the systematist who is attempting to classify the species within this family. This difficulty is compounded by a high degree of intraspecific variation. Descriptions often have to be based on the characteristics of the operculum, radula and penis. The shell of species within this family varies from planispiral to needle-shaped. The shell may hav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dojran Lake
Doiran Lake (, ''Dojransko Ezero''; , ''Límni Dhoïráni''), also spelled Dojran Lake is a lake with an area of shared between North Macedonia () and Greece (). To the west is the city of Nov Dojran (Нов Дојран), to the east the village of Mouries, to the north the mountain Belasica/Beles and to the south the Greek town of Doirani. The lake has a rounded shape, a maximum depth of and a north-to-south length of and is at its widest, making it the third largest lake partially in North Macedonia after Lake Ohrid and Lake Prespa. History The lake was on the southern line of the Macedonian front during World War I, and its southern shore became the site of the various battles between allied troops and Bulgarian troops in 1916, 1917 and 1918. A monument to one of the battles and two cemeteries for Greek and British troops stand on a hill a few hundred metres south of the lake. It was designed by Sir Robert Lorimer.Dictionary of Scottish Architects: Robert Lorimer E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Non-marine Molluscs Of Greece
The non-marine molluscs of Greece are a part of the molluscan fauna of Greece ( wildlife of Greece). A number of species of non-marine molluscs are found in the wild in Greece. Freshwater gastropods Neritidae * ''Theodoxus danubialis'' (Pfeiffer, 1828) * '' Theodoxus varius callosus'' (Deshayes, 1832) Viviparidae * ''Viviparus contectus'' (Millet, 1913) * '' Viviparus hellenicus'' (Clessin, 1879) Bythinellidae * '' Bythinella alexpeteri'' Glöer & Hirschfelder, 2020 - endemic to Greece * ''Bythinella amira'' Glöer & Hirschfelder, 2020 - endemic to Greece * ''Bythinella charpentieri'' (Roth, 1855) - endemic to Greece * ''Bythinella corrosa'' Glöer & Hirschfelder, 2020 - endemic to Greece * ''Bythinella dimitrosensis'' Glöer & Reuselaars, 2020 - endemic to Greece * ''Bythinella eleousae'' Glöer & Hirschfelder, 2020 - endemic to Greece * ''Bythinella ellinikae'' Glöer & Hirschfelder, 2020 - endemic to Greece * ''Bythinella jozefgregoi'' Glöer & Reuselaars, 2020 - ende ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Macedonia
North Macedonia, ; sq, Maqedonia e Veriut, (Macedonia before February 2019), officially the Republic of North Macedonia,, is a country in Southeast Europe. It gained independence in 1991 as one of the successor states of Socialist Federal Republic of Yugoslavia, Yugoslavia. It is a landlocked country bordering Kosovo to the northwest, Serbia to the north, Bulgaria to the east, Greece to the south, and Albania to the west. It constitutes approximately the northern third of the larger geographical Macedonia (region), region of Macedonia. Skopje, the capital and largest city, is home to a quarter of the country's 1.83 million people. The majority of the residents are ethnic Macedonians (ethnic group), Macedonians, a South Slavs, South Slavic people. Albanians in North Macedonia, Albanians form a significant minority at around 25%, followed by Turks in North Macedonia, Turks, Romani people in North Macedonia, Romani, Serbs in North Macedonia, Serbs, Bosniaks in North Mac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graecoanatolica
''Graecoanatolica'' is a genus of small freshwater snails, aquatic gastropod mollusks in the family Hydrobiidae.Bouchet, P. (2015). Graecoanatolica Radoman, 1973. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=716939 on 2015-12-16 Species Species within the genus ''Graecoanatolica'' are as follows *'' Graecoanatolica anatolica'' Schütt, 1965 *'' Graecoanatolica brevis'' Radoman, 1973 *'' Graecoanatolica conica'' Radoman, 1973 * †'' Graecoanatolica denizliensis'' (Taner, 1974) *'' Graecoanatolica dinarica'' Kebpaçi, Koca & Yilidrim, 2012 *'' Graecoanatolica kocapinarica'' Radoman, 1973 *'' Graecoanatolica lacustristurca'' Radoman, 1973 * †'' Graecoanatolica macedonica'' Radoman & Stanovic, 1978 *'' Graecoanatolica nageli'' Glöer & Pešić, 2015 *''Graecoanatolica pamphylica ''Graecoanatolica pamphylica'' is a species of freshwater snail, an aquatic gastropod mollusk in the family Hydr ... [...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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