''Alasmidonta'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...
of
freshwater mussel
Freshwater bivalves are one kind of freshwater mollusc, along with freshwater snails. They are bivalves that live in fresh water as opposed to salt water, which is the main habitat type for bivalves.
The majority of species of bivalve molluscs ...
s,
aquatic bivalve
Bivalvia (), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, biv ...
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 es ...
s in the family
Unionidae
The Unionidae are a 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 at its most dive ...
, the river mussels.
Species within the genus ''Alasmodonta''
*
Altamaha arcmussel, ''
Alasmidonta arcula
The Altamaha arcmussel (''Alasmidonta arcula'') is a species of freshwater mussel, an aquatic bivalve
Bivalvia (), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs ...
''
(I. Lea, 1838)
*
Cumberland elktoe, ''
Alasmidonta atropurpurea''
( Rafinesque, 1831)
*
Dwarf wedgemussel, ''
Alasmidonta heterodon''
(I. Lea, 1830)
*
Elktoe
The elktoe (''Alasmidonta marginata'') is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. This species is found in southeastern Canada and the eastern United States. Like many mussels ...
, ''
Alasmidonta marginata''
Say, 1818
*
Coosa elktoe
''Alasmidonta mccordi'', the Coosa elktoe, was a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. Because no individuals have been seen recently, it is assumed to be extinct.
This species ...
, ''
Alasmidonta mccordi
''Alasmidonta mccordi'', the Coosa elktoe, was a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. Because no individuals have been seen recently, it is assumed to be extinct.
This species ...
''
Athearn, 1964
*
Appalachian elktoe, ''
Alasmidonta raveneliana''
(I. Lea, 1834)
*
Carolina elktoe
''Alasmidonta robusta'', the Carolina elktoe, was a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.
Distribution
This species was endemic to North Carolina, and was known only from its ...
, ''
Alasmidonta robusta
''Alasmidonta robusta'', the Carolina elktoe, was a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.
Distribution
This species was endemic to North Carolina, and was known only from its ...
''
Clarke, 1981
*
Southern elktoe
Southern may refer to:
Businesses
* China Southern Airlines, airline based in Guangzhou, China
* Southern Airways, defunct US airline
* Southern Air, air cargo transportation company based in Norwalk, Connecticut, US
* Southern Airways Expres ...
, ''
Alasmidonta triangulata''
(I. Lea, 1858)
*
Triangle floater
A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices ''A'', ''B'', and ''C'' is denoted \triangle ABC.
In Euclidean geometry, any three points, when non- collinea ...
, ''
Alasmidonta undulata
''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, ...
''
( Say, 1817)
*
Brook floater
The brook floater (also known as swollen wedgmussel), ''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 althou ...
, ''
Alasmidonta varicosa''
(Lamarck
Jean-Baptiste Pierre Antoine de Monet, chevalier de Lamarck (1 August 1744 – 18 December 1829), often known simply as Lamarck (; ), was a French naturalist, biologist, academic, and soldier. He was an early proponent of the idea that biolog ...
, 1819)
*
Slippershell mussel, ''
Alasmidonta viridis''
( Rafinesque, 1820)
*
Ochlockonee arcmussel
''Alasmidonta wrightiana'', the Ochlockonee arcmussel, was a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.
This species was endemic to the Ochlockonee River in Florida and Georgia. ...
, ''
Alasmidonta wrightiana
''Alasmidonta wrightiana'', the Ochlockonee arcmussel, was a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.
This species was endemic to the Ochlockonee River in Florida and Georgia. ...
''
(Walker, 1901)
Gallery
Image:Alasmidonta marginata.jpg, Elktoe,
'' Alasmidonta marginata''
Image:Alasmidonta viridis.jpg, Slippershell mussel,
'' Alasmidonta viridis''
References
*
Bivalve genera
Taxa named by Thomas Say
Taxonomy articles created by Polbot
{{Unionidae-stub