| Obovaria subrotunda | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Bivalvia |
| Order: | Unionida |
| Family: | Unionidae |
| Genus: | Obovaria |
| Species: | O. subrotunda |
| Binomial name | |
| Obovaria subrotunda Rafinesque, 1820 | |
Obovaria subrotunda, common name the round hickorynut, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.
This species is native to eastern North America.
The Canadian Species at Risk Act listed it in the List of Wildlife Species at Risk as being endangered in Canada. [2]
The Green River is a 384-mile-long (618 km) tributary of the Ohio River that rises in Lincoln County in south-central Kentucky. Tributaries of the Green River include the Barren River, the Nolin River, the Pond River and the Rough River. The river was named after Nathanael Greene, a general of the American Revolutionary War.
The Sydenham River is a river in Kent County, Lambton County and Middlesex County in southwestern Ontario, Canada, flowing southwest from its source west of London, Ontario and emptying into Lake Saint Clair. The length of the river is 165 kilometres (103 mi) and it drains a watershed of approximately 2,700 square kilometres (1,000 sq mi). The river flows through the towns of Strathroy and Wallaceburg. It was named after Lord Sydenham, governor of Canada from 1839 to 1841.
The conservation status of a group of organisms indicates whether the group still exists and how likely the group is to become extinct in the near future. Many factors are taken into account when assessing conservation status: not simply the number of individuals remaining, but the overall increase or decrease in the population over time, breeding success rates, and known threats. Various systems of conservation status exist and are in use at international, multi-country, national and local levels as well as for consumer use.
The dwarf wedgemussel is an endangered species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.
The northern riffleshell, is a subspecies of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.
The Committee on the Status of Endangered Wildlife in Canada is an independent committee of wildlife experts and scientists whose "raison d'être is to identify species at risk" in Canada. It designates the conservation status of wild species.
Cumberlandia monodonta is a freshwater mussel endemic to the United States. Currently, C. monodonta is listed as an endangered species by the U.S. Fish and Wildlife Service and the International Union for Conservation of Nature.
Fusconaia subrotunda, the long solid mussel or long solid naiad, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae.
Lampsilis cariosa,, the yellow lampmussel, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.
Obovaria jacksoniana is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.
Obovaria is a genus of freshwater mussels, aquatic bivalve mollusks in the family Unionidae, the river mussels. There are at least six described species in Obovaria at present, all of which are found in the United States. Obovaria subrotunda is found in Canada as well.
Obovaria olivaria is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.
Obovaria retusa is a rare species of freshwater mussel in the family Unionidae, the river mussels. Its common names include golf stick pearly mussel and ring pink. It is native to parts of the eastern and southeastern United States, but it remains in very little of its original range. There may be no viable populations left. This is a federally listed endangered species of the United States.
Obovaria unicolor is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. This mussel has a round or elliptical shape.
Ptychobranchus fasciolaris is a species of freshwater mussel in the family Unionidae, the river mussels. Its common name is kidneyshell.
Simpsonaias ambigua, the salamander mussel or mudpuppy mussel, is a species of bivalve in the family Unionidae. It is unique among freshwater mussels in using mudpuppies as its glochidial host. It is the only freshwater mussel known to have a non-fish host.
Villosa fabalis, the rayed bean, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.
Pleurobema sintoxia, the round pigtoe, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.
Gonidea angulata, the western ridged mussel or Rocky Mountain ridged mussel, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. It is the only species in the genus Gonidea.
Obovaria haddletoni is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. This species is endemic to the United States.
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