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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] |
Leptoxis Dilatata
''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)) * Lyrate roc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leptoxis Arkansensis
''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)) * Lyrate rock ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oblong Rocksnail
''Leptoxis compacta'', the oblong rocksnail, is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Pleuroceridae. This species is endemic to the Cahaba River in Alabama, United States. It was thought to be extinct due to habitat loss since it had not been collected since 1933, and was formally declared extinct in 2000. The IUCN Red List listed it as extinct in 2006 and in 2012. It was rediscovered in a small section of its previously described habitat in the Cahaba River in 2011, with a formal report published in August 2012.Lamb E. (8 August 2012)Rumors of the Oblong Rocksnail’s Demise Were Somewhat Exaggerated ''Scientific American'', accessed 11 August 2012. Molecular systematic analyses are underway to clarify the genetic position of ''Leptoxis compacta''. Distribution ''Leptoxis compacta'' is restricted to a single location in the Cahaba River, where it was rediscovered in 2011. It lives in an unnamed shoal upstream of the Caha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Painted Rocksnail
The painted rocksnail (''Leptoxis coosaensis,'' formerly ''Leptoxis taeniata'') is a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Pleuroceridae. This species is endemic to the United States, specifically the state of Alabama. The snail has been listed as threatened on the United States Fish and Wildlife Service list of endangered species since October 28, 1998. Description The painted rocksnail is a small to medium-sized pleurocerid snail with a shell that measures about 19 mm (0.8 in) in length, and is subglobose to oval in shape. The aperture is broadly ovate, and rounded anteriorly. The shell coloration varies from yellowish to olive-brown, usually with four dark bands. Some shells do not have these dark bands, and some have the bands broken into square or oblong patches (see Goodrich, 1922Goodrich C. 1922. ''The Anculosae of the Alabama River Drainage''. Miscellaneous Publications, Museum of Zoology, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leptoxis Taeniata
The painted rocksnail (''Leptoxis coosaensis,'' formerly ''Leptoxis taeniata'') is a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Pleuroceridae. This species is endemic to the United States, specifically the state of Alabama. The snail has been listed as threatened on the United States Fish and Wildlife Service list of endangered species since October 28, 1998. Description The painted rocksnail is a small to medium-sized pleurocerid snail with a shell that measures about 19 mm (0.8 in) in length, and is subglobose to oval in shape. The aperture is broadly ovate, and rounded anteriorly. The shell coloration varies from yellowish to olive-brown, usually with four dark bands. Some shells do not have these dark bands, and some have the bands broken into square or oblong patches (see Goodrich, 1922Goodrich C. 1922. ''The Anculosae of the Alabama River Drainage''. Miscellaneous Publications, Museum of Zoology, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plicate Rocksnail
The plicate rocksnail, scientific name ''Leptoxis plicata'', is a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Pleuroceridae. This species is endemic to the United States, specifically the state of Alabama. The snail has been listed as endangered on the United States Fish and Wildlife Service list of endangered species since October 28, 1998. Description The plicate rocksnail is a pleurocerid snail with a shell that grows to about 20 mm (0.8 in) in length. Shells are subglobose with broadly rounded apertures. The body whorl may be ornamented with strong folds or plicae. Shell color is usually brown, occasionally green, and often with four equidistant color bands. The columella (central column or axis) is smooth, rounded, and typically pigmented in the upper half. The aperture is usually bluish-white, occasionally pink or white. The operculum (plate that closes the shell when the snail is retracted) is da ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leptoxis Carinata
''Leptoxis carinata'', common name the crested mudalia, is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Pleuroceridae. Shell description ''Leptoxis carinata'' has a strong globose shell, with highly variable sculpture. In various creeks and rivers throughout its range, populations may be found with spiral cords, a single carina or keel, variously developed, or lacking sculpture. Distribution This species occurs in unpolluted large creeks and high-gradient rivers in the Atlantic drainages of the United States, from New York to North Carolina. Ecology Habitat ''Leptoxis carinata'' is found in high-gradient streams, generally in the faster flowing riffles and drops, where it clings firmly to large stones and bedrock exposures. Life cycle ''Leptoxis carinata'' is semelparous biennial. This species, unlike softer shelled physid snails, grows very slowly, and has the lowest intrinsic rate of increase (this means that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leptoxis Ampla
''Leptoxis ampla'', common name the round rocksnail, is a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusc in the family Pleuroceridae. This species is endemic to the United States, specifically the state of Alabama. The snail has been listed as threatened on the United States Fish and Wildlife Service list of endangered species since 28 October 1998. ''Leptoxis ampla'' is a vulnerable species according to the IUCN Red list. Description The round rocksnail is a pleurocerid snail and its shell grows to about 20 mm (0.8 in) in length. The shell is subglobose, with an ovately rounded aperture. The body whorl is shouldered at the suture, and may be ornamented with folds or plicae. Color may be yellow, dark brown, or olive green, usually with four entire or broken bands.Goodrich C. (1922). "The Anculosae of the Alabama River Drainage". ''Miscellaneous Publications'', Museum of Zoology, University of Michigan (7): 1–57. Lydeard et ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agate Rocksnail
''Leptoxis clipeata'', the agate rocksnail, was a freshwater snail in the family Pleuroceridae. Like all ''Leptoxis'', the species required free-flowing unpolluted water. It was endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ... to parts of the Coosa River in Alabama, now impounded.Burch, (1982) Freshwater Snails (Mollusca: Gastropoda) of North America. United States Environmental Protection Agency, Cincinnati, Ohio. References clipeata Extinct gastropods Gastropods described in 1922 Taxonomy articles created by Polbot {{Pleuroceridae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interrupted Rocksnail
''Leptoxis foremani'', the interrupted rocksnail, is a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Pleuroceridae. This species is endemic to parts of the Coosa River and its tributaries. It was formerly believed to be extinct, and remains classified as Extinct on the IUCN Red List. However, in 1997, a U.S. Fish and Wildlife Service biologist discovered one specimen in the Oostanaula River in Georgia. Scientists from the Tennessee Aquarium Research Institute subsequently began collecting Interrupted Rocksnails from the Oostanaula in order to reintroduce them to other rivers where they had formerly lived. In 2004, 3,000 of the snails were reintroduced to the Coosa River in Alabama (We dare defend our rights) , anthem = "Alabama (state song), Alabama" , image_map = Alabama in United States.svg , seat = Montgomery, Alabama, Montgomery , LargestCity = Huntsville, Alabama, Huntsville , LargestCounty = Baldwin County ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maiden Rocksnail
The maiden rocksnail, scientific name †''Leptoxis formosa'', was a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Pleuroceridae. This species was endemic to the United States. It is now extinct 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 .... References *Lea, I. (1860). Descriptions of fourteen new species of Schizostomae, Anculosae and Lithasiae. ''Proceedings of the Academy of Natural Sciences of Philadelphia.'' 12: 186-188 fter 22 May 1860, ''available online at'' https://www.biodiversitylibrary.org/page/26297333 Leptoxis Extinct gastropods Gastropods described in 1860 Taxonomy articles created by Polbot Taxa named by Isaac Lea {{Pleuroceridae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coosa Rocksnail
The Coosa rocksnail, scientific name †''Leptoxis showalterii'', also known as the "ribbed rocksnail", was a species of freshwater snails with an operculum (gastropod), operculum, Aquatic animal, aquatic gastropod mollusks in the family Pleuroceridae. This species was Endemism, endemic to the United States. It is now extinct. References Leptoxis Extinct gastropods Gastropods described in 1860 Taxonomy articles created by Polbot {{Pleuroceridae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
