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Pleuroceridae
Pleuroceridae, common name pleurocerids, is a family of small to medium-sized freshwater snails, aquatic gilled gastropod mollusks in the superfamily Cerithioidea.These snails have an operculum and typically a robust high-spired shell. Reproduction is iteroparous, and juvenile snails emerge from eggs laid on a firm surface by a gonochoristic female. There is no veliger stage. Distribution As currently defined, this family is confined entirely to eastern North American fresh waters. Similar snails formerly classified with Pleuroceridae, but now assigned to other families are widespread in temperate and tropical parts of Southern and Eastern Asia, and Africa. Most require unpolluted rivers and streams, but a few are adapted to living in lakes or reservoirs. Taxonomy 2005 taxonomy The following two subfamilies have been recognized in the taxonomy of Bouchet & Rocroi (2005): * Pleurocerinae P. Fischer, 1885 - synonyms: Ceriphasiinae Gill, 1863; Strepomatidae Haldeman, 1864 ... [...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] |
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] |
Io Fluvialis
The spiny river snail, scientific name ''Io fluvialis'', is a species of freshwater snail, an aquatic mollusk in the family Pleuroceridae. This is the only species in the genus ''Io''. This species is endemic to the USA. Ecology Distribution This species is Endemism, endemic to the Tennessee River and its larger tributaries, but it has been largely extirpated due to pollution and the construction of dams. Habitat These snails live in rapidly flowing, well-oxygenated waters of shoals and riffles of rivers, but not in slack water below shoals. The preferred water depth for this species is up to 1.5 m. Behavior These snails feed on the algal coating on rocks. Females lay between 20-100 eggs, which begin to hatch after 15 days. Description The shell morphology is very variable, with some individuals totally lacking spines. For this reason it was formerly thought that many species existed within this genus. Human relevance The shells are found abundantly in shell middens along th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cerithioidea
The Cerithioidea is a superfamily of marine, brackish water and freshwater gastropod containing more than 200 genera. The Cerithoidea are included unassigned in the subclass Caenogastropoda. The original name of this superfamily was Cerithiacea, in keeping with common superfamily endings at the time. Ecology Cerithioidea is a very diverse superfamily. Its species can be found worldwide mainly in tropic and subtropic seas on rocky intertidal shores, seagrass beds and algal fronds, but also in estuarine and freshwater habitats. The freshwater species are found on all continents, except Antarctica. They are dominant members of mangrove forests, estuarine mudflats, fast-flowing rivers and placid lakes.Healy J. M. & Wells F. E. (). ''Mollusca, The Southern Syntthesis. Fauna of Australia.'' Melbourne, CSIRO publishing. 707 pp. Fossil record Their fossil record of this superfamily can be traced back as far as the early TriassicTracey S., Todd J. A. & Erwin D. H. (1993). ''The Fossil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Io (gastropod)
The spiny river snail, scientific name ''Io fluvialis'', is a species of freshwater snail, an aquatic mollusk in the family Pleuroceridae. This is the only species in the genus ''Io''. This species is endemic to the USA. Ecology Distribution This species is endemic to the Tennessee River and its larger tributaries, but it has been largely extirpated due to pollution and the construction of dam A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, a ...s. Habitat These snails live in rapidly flowing, well-oxygenated waters of shoals and riffles of rivers, but not in slack water below shoals. The preferred water depth for this species is up to 1.5 m. Behavior These snails feed on the algal coating on rocks. Females lay between 20-100 eggs, which begin to hatch after 15 days. Description T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Athearnia Anthonyi
''Athearnia anthonyi'' is a rare species of freshwater snail in the family Pleuroceridae. Its common name is Anthony's riversnail. It is native to three rivers in the Tennessee River system in the United States: the main branch and the Sequatchie River The Sequatchie River is a waterway that drains the Sequatchie Valley, a large valley in the Cumberland Plateau in Tennessee. It empties into the Tennessee River downstream from Chattanooga near the Tennessee-Alabama state line. Hydrography The ... and Limestone Creek.USFWS''Athearnia anthonyi'' Five-year Review.March 2011. References Pleuroceridae Gastropods described in 1854 ESA endangered species {{Pleuroceridae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Athearnia
''Athearnia'' is a genus of freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Pleuroceridae. Species Species within the genus ''Athearnia'' include: * ''Athearnia anthonyi ''Athearnia anthonyi'' is a rare species of freshwater snail in the family Pleuroceridae. Its common name is Anthony's riversnail. It is native to three rivers in the Tennessee River system in the United States: the main branch and the Sequatchie ...'' * '' Athearnia crassa'', the boulder snail References * Zipcode zoo info at Pleuroceridae {{Pleuroceridae-stub pt:Athearnia anthonyi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gyrotoma
''Gyrotoma'' is a genus of extinct freshwater snails with an operculum, aquatic gastropod mollusks in the family Pleuroceridae. This genus was endemic to the USA. All of the species within this genus are presumed extinct. They were native to the main channel of the Coosa River in Alabama, where the last suitable habitat was destroyed by the filling of the reservoir Logan Martin Lake Logan Martin Lake is a reservoir located in east central Alabama on the Coosa River approximately east of Birmingham, Alabama. This reservoir was built in 1965 by Alabama Power Company. The lake, nicknamed Lake of a Thousand Coves by locals, has ... in the mid-1960s. Species Species within the genus ''Gyrotoma'' include: * ''Gyrotoma excisa'' (I. Lea, 1843) - excised slitshell * ''Gyrotoma lewisii'' (I. Lea, 1869) - striate slitshell * ''Gyrotoma pagoda'' (I. Lea, 1845) - pagoda slitshell * ''Gyrotoma pumila'' (I. Lea, 1860) - ribbed slitshell * ''Gyrotoma pyramidata'' (Shuttleworth, 1845) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithasia
''Lithasia'' is a genus of medium-sized freshwater snails, aquatic gilled gastropod molluscs in the family Pleuroceridae. This genus is endemic to rivers in the mid-southern United States. Species Species within the genus ''Lithasia'' include: * Armigerous river snail (''Lithasia armigera'') * Knobby rocksnail (''Lithasia curta'') * Dutton's river snail (''Lithasia duttoniana'') * Geniculate river snail (''Lithasia geniculata'') * Jay's river snail Jay's river snail also known as the rugose rocksnail, scientific name ''Lithasia jayana'', is a species of small freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Pleuroceridae, the hornsnails. This speci ... (''Lithasia jayana'') * Elk River file snail (''Lithasia lima'') * Muddy rocksnail (''Lithasia salebrosa'') * Varicose rocksnail (''Lithasia verrucosa'') References Nomenclator Zoologicus info Pleuroceridae Taxa named by Samuel Stehman Haldeman Taxonomy articles created by P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elimia
''Elimia'' is a genus of freshwater snails with an operculum, aquatic gastropod mollusks in the family Pleuroceridae. Various species are found in creeks throughout much of the eastern and central United States and the Great Lakes region of Canada. They were formerly included in the genus ''Goniobasis'', together with the western ''Juga'' species. Species Species within the genus ''Elimia'' include: * '' Elimia acuta'' * mud elimia (''Elimia alabamensis'') * black-crest elimia (''Elimia albanyensis'') * '' Elimia ampla'' (Anthony, 1854) * Lily Shoals elimia (''Elimia annettae'') * '' Elimia aterina'' * walnut elimia (''Elimia bellula'') * flaxen elimia (''Elimia boykiniana'') * short-spired elimia (''Elimia brevis'') * Cahaba elimia (''Elimia cahawbensis'') * spindle elimia (''Elimia capillaris'') * Sharp-crest Elimia (Elimia carinifera) * closed elimia (''Elimia clausa'') * lacy elimia (''Elimia crenatella'') * Balcones elimia (''Elimia comalensis'') * banded el ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleurocera
''Pleurocera'' is a genus of freshwater snails with an operculum, aquatic gastropod mollusks in the family Pleuroceridae.Neubauer, Thomas A. (2014). Pleurocera Rafinesque, 1818. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=820483 on 2014-11-25 ''Pleurocera'' is the type genus of that family. Distribution All members of the genus ''Pleurocera'' are native to eastern North America. Description All of the species in this genus have thick-walled high- spired shells, and some attain a length of over 4 cm. The shape of the shell is elongate-conic or cylindrical. The sculpture of the shell is often carinate or costate. The shell of larger species sometimes develops sculpturing and a small siphonal canal or siphonal notch at the base of the aperture. Opercula are paucispiral and corneous, but may be vestigial in some species, not completely closing the aperture. The soft parts of the animal usually have a gray ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leptoxis
''Leptoxis'' is a genus of freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Pleuroceridae. Species within this genus inhabit rocky fast-flowing parts of unpolluted and unimpounded mid-sized rivers in the American mid South and the southern Midwest. Species in the subgenus ''Mudalia'' inhabit rivers and creeks in the Atlantic drainage. Species Species within the genus ''Leptoxis'' include. Those that are extinct are marked with a dagger †. * '' Leptoxis ampla'' (Anthony, 1855) * '' Leptoxis arkansensis'' (Hinkley, 1915) * '' Leptoxis carinata'' (Bruguière, 1792) * Agate rocksnail (''Leptoxis clipeata'' (Smith, 1922)) * Oblong rocksnail (''Leptoxis compacta'') * '' Leptoxis crassa'' (Haldeman 1841) * '' Leptoxis dilatata'' (Conrad, 1835) * Interrupted rocksnail (''Leptoxis foremanii'' (I. Lea, 1843) ) * Maiden rocksnail (''Leptoxis formosa'' (I. Lea, 1860) ) * Rotund rocksnail (''Leptoxis ligata'' (Anthony, 1860)) * Lyra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
