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Alasmidonta
''Alasmidonta'' is a genus of freshwater mussels, aquatic bivalve mollusks in the family Unionidae, the river mussels. Species within the genus ''Alasmodonta'' * Altamaha arcmussel, ''Alasmidonta arcula'' (I. Lea, 1838) * Cumberland elktoe, '' Alasmidonta atropurpurea'' ( Rafinesque, 1831) * Dwarf wedgemussel, '' Alasmidonta heterodon'' (I. Lea, 1830) * Elktoe, ''Alasmidonta marginata'' Say, 1818 * Coosa elktoe, '' Alasmidonta mccordi'' Athearn, 1964 * Appalachian elktoe, '' Alasmidonta raveneliana'' (I. Lea, 1834) * Carolina elktoe, '' Alasmidonta robusta'' Clarke, 1981 * Southern elktoe, '' Alasmidonta triangulata'' (I. Lea, 1858) * Triangle floater, '' Alasmidonta undulata'' ( Say, 1817) * Brook floater, '' Alasmidonta varicosa'' ( Lamarck, 1819) * Slippershell mussel, '' Alasmidonta viridis'' ( Rafinesque, 1820) * Ochlockonee arcmussel, '' Alasmidonta wrightiana'' (Walker, 1901) Gallery Image:Alasmidonta marginata.jpg, Elktoe,''Alasmidonta marginata T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alasmidonta Undulata
''Alasmidonta'' is a genus of freshwater mussels, Aquatic animal, aquatic bivalve mollusks in the family Unionidae, the river mussels. Species within the genus ''Alasmodonta'' * Altamaha arcmussel, ''Alasmidonta arcula'' (I. Lea, 1838) * Cumberland elktoe, ''Alasmidonta atropurpurea'' (Rafinesque, 1831) * Dwarf wedgemussel, ''Alasmidonta heterodon'' (I. Lea, 1830) * Elktoe, ''Alasmidonta marginata'' Thomas Say, Say, 1818 * Coosa elktoe, ''Alasmidonta mccordi'' Athearn, 1964 * Appalachian elktoe, ''Alasmidonta raveneliana'' (I. Lea, 1834) * Carolina elktoe, ''Alasmidonta robusta'' Clarke, 1981 * Southern elktoe, ''Alasmidonta triangulata'' (I. Lea, 1858) * Triangle floater, ''Alasmidonta undulata'' (Thomas Say, Say, 1817) * Brook floater, ''Alasmidonta varicosa'' (Lamarck, 1819) * Slippershell mussel, ''Alasmidonta viridis'' (Rafinesque, 1820) * Ochlockonee arcmussel, ''Alasmidonta wrightiana'' (Walker, 1901) Gallery Image:Alasmidonta marginata.jpg, Elktoe,''Alasmidonta ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alasmidonta Triangulata
''Alasmidonta'' is a genus of freshwater mussels, aquatic bivalve mollusks in the family Unionidae, the river mussels. Species within the genus ''Alasmodonta'' * Altamaha arcmussel, ''Alasmidonta arcula'' (I. Lea, 1838) * Cumberland elktoe, '' Alasmidonta atropurpurea'' ( Rafinesque, 1831) * Dwarf wedgemussel, '' Alasmidonta heterodon'' (I. Lea, 1830) * Elktoe, ''Alasmidonta marginata'' Say, 1818 * Coosa elktoe, '' Alasmidonta mccordi'' Athearn, 1964 * Appalachian elktoe, '' Alasmidonta raveneliana'' (I. Lea, 1834) * Carolina elktoe, '' Alasmidonta robusta'' Clarke, 1981 * Southern elktoe, '' Alasmidonta triangulata'' (I. Lea, 1858) * Triangle floater, ''Alasmidonta undulata'' ( Say, 1817) * Brook floater, '' Alasmidonta varicosa'' ( Lamarck, 1819) * Slippershell mussel, '' Alasmidonta viridis'' ( Rafinesque, 1820) * Ochlockonee arcmussel, '' Alasmidonta wrightiana'' (Walker, 1901) Gallery Image:Alasmidonta marginata.jpg, Elktoe,''Alasmidonta marginata The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dwarf Wedgemussel
The dwarf wedgemussel (''Alasmidonta heterodon'') is an endangered species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. Distribution and conservation status This is a rare species found solely in North America's Atlantic coast streams and rivers of various sizes and moderate current. The dwarf wedge mussel's current range extends from New Hampshire to North Carolina. The dwarf wedge mussel is federally listed as endangered and state-listed as endangered in Connecticut, Massachusetts, Maryland, North Carolina, New Hampshire, New Jersey, New York, Pennsylvania, Virginia, and Vermont. It previously lived in New Brunswick, but it is locally extirpated in Canada since 1968. The Canadian Species at Risk Act listed the dwarf wedgemussel in the List of Wildlife Species at Risk as being extirpated in Canada. Biotope This mussel may be found in small creeks to deep rivers in stable habitats with substrates ranging from mixed san ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alasmidonta Varicosa
The brook floater or swollen wedgemussel, ''Alasmidonta varicosa'', is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. It measures 25.1 mm to 80.2 mm in length although other research also suggests it rarely exceeds three inches (75 mm). Distribution This species is found in Canada (New Brunswick and Nova Scotia) and northeastern United States (Connecticut, Georgia, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, North Carolina, Pennsylvania, South Carolina, Vermont, Virginia and West Virginia); It was formerly found in Rhode Island and four watersheds in Massachusetts but are now extinct in Rhode Island and almost extinct in Massachusetts. 1897 Research by Arnold Edward Ortmann showed it to be common in the Delaware and Susquehanna Rivers. Habitat and behavior This mussel lives in high relief streams, under boulders and in sand. Research has shown that it is highly sensitive to increa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brook Floater
The brook floater or swollen wedgemussel, ''Alasmidonta varicosa'', is a species of freshwater mussel, an Aquatic animal, aquatic bivalve mollusk in the family Unionidae, the river mussels. It measures 25.1 mm to 80.2 mm in length although other research also suggests it rarely exceeds three inches (75 mm). Distribution This species is found in Canada (New Brunswick and Nova Scotia) and northeastern United States (Connecticut, Georgia (U.S. state), Georgia, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York (state), New York, North Carolina, Pennsylvania, South Carolina, Vermont, Virginia and West Virginia); It was formerly found in Rhode Island and four watersheds in Massachusetts but are now extinct in Rhode Island and almost extinct in Massachusetts. 1897 Research by Arnold Edward Ortmann showed it to be common in the Delaware River, Delaware and Susquehanna River, Susquehanna Rivers. Habitat and behavior This mussel lives in high relief stream ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cumberland Elktoe
''Alasmidonta atropurpurea'', common name Cumberland elktoe, is a species of freshwater mussel, an aquatic animal, aquatic bivalve mollusk in the family Unionidae, the river mussels. Description The Cumberland elktoe has a thin, but not fragile, Bivalve shell, shell. The outside surface of the shell (periostracum) is smooth, somewhat shiny, and covered with greenish rays. Young specimens have a yellowish brown periostracum, while specimens of adults are generally much darker. The inside surface of the shell (nacre) is shiny, with the color being white, bluish white, or sometimes peach or salmon. Distribution The Cumberland elktoe is endemic to the upper Cumberland River system, and it still exists in 12 mostly small tributaries in southeast Kentucky and north-central Tennessee. The Cumberland elktoe is limited in distribution to the upper Cumberland River system in southeast Kentucky and north-central Tennessee, occupying streams both above and below Cumberland Falls. This ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alasmidonta Atropurpurea
''Alasmidonta atropurpurea'', common name Cumberland elktoe, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. Description The Cumberland elktoe has a thin, but not fragile, shell. The outside surface of the shell ( periostracum) is smooth, somewhat shiny, and covered with greenish rays. Young specimens have a yellowish brown periostracum, while specimens of adults are generally much darker. The inside surface of the shell ( nacre) is shiny, with the color being white, bluish white, or sometimes peach or salmon. Distribution The Cumberland elktoe is endemic to the upper Cumberland River system, and it still exists in 12 mostly small tributaries in southeast Kentucky and north-central Tennessee. The Cumberland elktoe is limited in distribution to the upper Cumberland River system in southeast Kentucky and north-central Tennessee, occupying streams both above and below Cumberland Falls. This species appears to have oc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alasmidonta Raveneliana
The Appalachian elktoe (''Alasmidonta raveneliana'') is a species of freshwater mussel in the family Unionidae, the river mussels. It is native to the United States, where it is known only from North Carolina and Tennessee. Description The Appalachian elktoe has a "thin, kidney-shaped shell, reaching up to about 10 centimeters (4 inches)." Younger mussels normally have a yellowish-brown periostracum (outer shell layer), while more mature mussels generally have a dark brown to greenish-brown periostracum. Features on the outer shell of the mussel, whether juvenile or adult, are often fine or hard to distinguish. In some cases streaks or waves are apparent, which are most easily noticeable on the dorsal region of the outer shell. Most individuals however have green waves, which are a similar hue as the rest of the shell and are often minute. Inside the shell, the nacre has a sheen which is white, blue, and silver. The center of the inner shell changes from a light, almost ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alasmidonta Viridis
''Alasmidonta viridis'', the slippershell mussel, is a species of mussel in the family Unionidae The Unionidae are a Family (biology), family of freshwater mussels, the largest in the order Unionida, the bivalve molluscs sometimes known as river mussels, or simply as unionids. The range of distribution for this family is world-wide. It is a ..., the river mussels. It is found in the central and eastern United States and in Ontario, Canada. It is threatened in parts of its range, but it is not threatened as a species. ''Alasmidonta viridis'' primarily occurs in creeks and headwaters of rivers, but has also been found in larger rivers and in lakes. References viridis Bivalves of North America Freshwater animals of North America Bivalves described in 1820 Taxa named by Constantine Samuel Rafinesque {{Unionidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slippershell Mussel
''Alasmidonta viridis'', the slippershell mussel, is a species of mussel Mussel () is the common name used for members of several families of bivalve molluscs, from saltwater and Freshwater bivalve, freshwater habitats. These groups have in common a shell whose outline is elongated and asymmetrical compared with other ... in the family Unionidae, the river mussels. It is found in the central and eastern United States and in Ontario, Canada. It is threatened in parts of its range, but it is not threatened as a species. ''Alasmidonta viridis'' primarily occurs in creeks and headwaters of rivers, but has also been found in larger rivers and in lakes. References viridis Bivalves of North America Freshwater animals of North America Bivalves described in 1820 Taxa named by Constantine Samuel Rafinesque {{Unionidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Appalachian Elktoe
The Appalachian elktoe (''Alasmidonta raveneliana'') is a species of freshwater bivalve, freshwater mussel in the family Unionidae, the river mussels. It is native to the United States, where it is known only from North Carolina and Tennessee. Description The Appalachian elktoe has a "thin, kidney-shaped shell, reaching up to about 10 centimeters (4 inches)." Younger mussels normally have a yellowish-brown periostracum (outer shell layer), while more mature mussels generally have a dark brown to greenish-brown periostracum. Features on the outer shell of the mussel, whether juvenile or adult, are often fine or hard to distinguish. In some cases streaks or waves are apparent, which are most easily noticeable on the dorsal region of the outer shell. Most individuals however have green waves, which are a similar hue as the rest of the shell and are often minute. Inside the shell, the nacre has a sheen which is white, blue, and silver. The center of the inner shell changes from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |