|
Palaospeum Nanum
''Palaospeum'' is a genus of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Moitessieriidae.MolluscaBase eds. (2021). MolluscaBase. Palaospeum Boeters, 1999. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=723858 on 2021-11-28 Species * '' Palaospeum bertrandi'' Girardi, 2009 * ''Palaospeum bessoni ''Palaospeum'' is a genus of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Moitessieriidae Moitessieriidae is a family of small freshwater snails, aquatic gastropod molluscs in the sup ...'' (R. Bernasconi, 1999) * '' Palaospeum hispanicum'' Boeters, 2003 * '' Palaospeum lopezsorianoi'' Quiñonero-Salgado & Rolán, 2017 * '' Palaospeum nanum'' Boeters & Bertrand, 2001 * '' Palaospeum septentrionale'' (Rolán & Ramos, 1996) References External links * Boeters, H. D. (1999). Palaospeum n. gen. (Gastropoda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater Snail
Freshwater snails are gastropod mollusks that 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 gastropod shell, shell, with very few exceptions. Some groups of snails that live in freshwater Respiratory system, respire using gills, whereas Pulmonata, 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 feeding, filter feeders. Freshwater snails are indirectly among the deadliest animals to humans, as they carry parasitic worms that cause schistosomiasis, a disease estimated to kill between 10,000 and 200,000 people annually. There are thousands of known species, and at least 33–38 independent Lineage (evolut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operculum (gastropod)
An 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, including the 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 (mollusc), 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 (mollusc), 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 are not capable of closing the shell aperture. Opercula have sometimes been modifie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquatic Animal
An aquatic animal is any animal, whether vertebrate or invertebrate, that lives in a body of water for all or most of its lifetime. Aquatic animals generally conduct gas exchange in water by extracting dissolved oxygen via specialised respiratory system, respiratory organ (biology), organs called gills, cutaneous respiration, through the skin or enteral respiration, across enteral mucosae, although some are evolution, evolved from terrestrial ancestors that re-adaptation, adapted to aquatic environments (e.g. marine reptiles and marine mammals), in which case they actually use lungs to breathing, breathe air and are essentially apnea, holding their breath when living in water. Some species of gastropod mollusc, such as the Elysia chlorotica, eastern emerald sea slug, are even capable of kleptoplastic photosynthesis via endosymbiosis with ingested yellow-green algae. Almost all aquatic animals reproduce in water, either oviparously or viviparously, and many species routinely fish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropod
Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and from the land. There are many thousands of species of sea snails and sea slug, slugs, as well as freshwater snails, freshwater limpets, land snails and slugs. The class Gastropoda is a diverse and highly successful class of mollusks within the phylum Mollusca. It 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 Furongian, Late Cambrian. , 721 family (taxonomy), families of gastropods are known, of which 245 are extinct and appear only in the fossil record, while 476 are currently neontology, extant living fossil, with or without a fossil record. Gastropoda (previously known as univalves and sometimes spelled "Gasteropoda") are a major part of the phylum Mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusc
Mollusca is a phylum of protostome, protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant taxon, extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The number of additional fossil species is estimated between 60,000 and 100,000, and the proportion of undescribed species is very high. Many taxa remain poorly studied. Molluscs are the largest marine biology, marine phylum, comprising about 23% of all the named marine organisms. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat, as numerous groups are freshwater mollusc, freshwater and even terrestrial molluscs, terrestrial species. The phylum is typically divided into 7 or 8 taxonomy (biology), taxonomic class (biology), classes, of which two are entirely extinct. Cephalopod molluscs, such as squid, cuttlefish, and octopuses, are among the most neurobiology, neurologi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micromollusc
A micromollusc is a shelled mollusc which is extremely small, even at full adult size. The word is usually, but not exclusively, applied to marine molluscs, although in addition, numerous species of land snails and freshwater molluscs also reach adult size at very small dimensions. These tiny molluscs or their tiny shells are easy to overlook, as many of them are not very noticeable to the naked eye, and thus many people are not aware that they even exist. Nonetheless there are large numbers of families and vast numbers of mollusc species, in particular marine gastropods or sea snails, which are minute enough to be considered micromolluscs. Considerable numbers of marine gastropod species are only about 5 or 6 mm in adult size; many others are only about 2 or 3 mm in adult size; and a few have adult shells which are as small as one millimeter or even smaller still. Micromolluscs are known to have adult shells as small as 600 μm.Geiger et al 2007, Pg. 1 De ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family (, : ) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". The delineation of what constitutes a family—or whether a described family should be acknowledged—is established and decided upon by active taxonomists. There are not strict regulations for outlining or acknowledging a family, yet in the realm of plants, these classifications often rely on both the vegetative and reproductive characteristics of plant species. Taxonomists frequently hold varying perspectives on these descriptions, leading to a lack of widespread consensus within the scientific community ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moitessieriidae
Moitessieriidae is a family of small freshwater snails, aquatic gastropod molluscs in the superfamily Truncatelloidea.Bouchet, P. (2014). Moitessieriidae Bourguignat, 1863. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=715907 on 2015-02-19 According to the taxonomy of the Gastropoda by Bouchet & Rocroi (2005) the family Moitessieriidae has no subfamilies. There are known 55 freshwater species of Moitessieriidae in the Palearctic region.Strong E. E., Gargominy O., Ponder W. F. & Bouchet P. (2008). "Global Diversity of Gastropods (Gastropoda; Mollusca) in Freshwater". ''Hydrobiologia'' 595: 149–166. . Genera Genera within the family Moitessieriidae include: * '' Atebbania'' Ghamizi, Bodon, Boulal & Giusti, 1999 * '' Baldufa'' Alba, Tarruella, Prats, Guillen & Corbella, 2010 * '' Bosnidilhia'' Boeters, Glöer & Pešić, 2013 * '' Bythiospeum'' Bourguignat, 1882 * '' Clameia'' Boeters & E. Gittenberger, 1990 * ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaospeum Bertrandi
''Palaospeum'' is a genus of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Moitessieriidae.MolluscaBase eds. (2021). MolluscaBase. Palaospeum Boeters, 1999. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=723858 on 2021-11-28 Species * '' Palaospeum bertrandi'' Girardi, 2009 * ''Palaospeum bessoni'' (R. Bernasconi, 1999) * '' Palaospeum hispanicum'' Boeters, 2003 * '' Palaospeum lopezsorianoi'' Quiñonero-Salgado & Rolán, 2017 * ''Palaospeum nanum ''Palaospeum'' is a genus of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Moitessieriidae.MolluscaBase eds. (2021). MolluscaBase. Palaospeum Boeters, 1999. Accessed through: World Register ...'' Boeters & Bertrand, 2001 * '' Palaospeum septentrionale'' (Rolán & Ramos, 1996) References External links * Boeters, H. D. (1999). Palaospeum n. gen. (Gastropoda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaospeum Bessoni
''Palaospeum'' is a genus of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Moitessieriidae Moitessieriidae is a family of small freshwater snails, aquatic gastropod molluscs in the superfamily Truncatelloidea.Bouchet, P. (2014). Moitessieriidae Bourguignat, 1863. Accessed through: World Register of Marine Species at http://www.marine ....MolluscaBase eds. (2021). MolluscaBase. Palaospeum Boeters, 1999. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=723858 on 2021-11-28 Species * '' Palaospeum bertrandi'' Girardi, 2009 * '' Palaospeum bessoni'' (R. Bernasconi, 1999) * '' Palaospeum hispanicum'' Boeters, 2003 * '' Palaospeum lopezsorianoi'' Quiñonero-Salgado & Rolán, 2017 * '' Palaospeum nanum'' Boeters & Bertrand, 2001 * '' Palaospeum septentrionale'' (Rolán & Ramos, 1996) References External links * Boeters, H. D. (1999). Palaospeum n. gen. (Gastropod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaospeum Hispanicum
''Palaospeum'' is a genus of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Moitessieriidae.MolluscaBase eds. (2021). MolluscaBase. Palaospeum Boeters, 1999. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=723858 on 2021-11-28 Species * '' Palaospeum bertrandi'' Girardi, 2009 * ''Palaospeum bessoni ''Palaospeum'' is a genus of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Moitessieriidae Moitessieriidae is a family of small freshwater snails, aquatic gastropod molluscs in the sup ...'' (R. Bernasconi, 1999) * '' Palaospeum hispanicum'' Boeters, 2003 * '' Palaospeum lopezsorianoi'' Quiñonero-Salgado & Rolán, 2017 * '' Palaospeum nanum'' Boeters & Bertrand, 2001 * '' Palaospeum septentrionale'' (Rolán & Ramos, 1996) References External links * Boeters, H. D. (1999). Palaospeum n. gen. (Gastropoda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
