Ligumia recta

Phylum:Mollusca

Class:Bivalvia

Order:Unionida

Family:Unionidae

Ligumia recta
Conservation status
Near Threatened  (IUCN 3.1)[1]
Apparently Secure  (NatureServe)[2]
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Order:	Unionida
Family:	Unionidae
Genus:	Ligumia
Species:	L. recta
Binomial name
Ligumia recta Lamarck, 1819
Synonyms
Lampsilis (Eurynia) recta (Lamarck, 1819) Lampsilis (Eurynia) recta sageri (Conrad, 1836) Lampsilis (Eurynia) rectus (Lamarck, 1819) Lampsilis (Ligumia) recta (Lamarck, 1819) Lampsilis (Ligumia) recta latissima (Rafinesque, 1820) Lampsilis recta (Lamarck, 1819) Lampsilis recta recta (Lamarck, 1819) Ligumia latissima (Rafinesque, 1820) Ligumia recta latissima (Rafinesque, 1820) Margarita (Unio) rectus (Lamarck, 1819) Margaron (Unio) rectus (Lamarck, 1819) Ptychobranchus fasciolare arquatum (Conrad, 1854) Unio (Eurynia) latissima Rafinesque, 1820 Unio angustatus cuniculus de Gregorio, 1914 Unio arquatus Conrad, 1854 Unio leprosus Miles, 1861 Unio praelongus Barnes, 1823 Unio recta Lamarck, 1819 Unio rectus (Lamarck, 1819) Unio sageri Conrad, 1836

Ligumia recta, or the black sandshell, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.^[3]

This species is found in eastern North America. It is native to the drainages of the Mississippi River, the drainages of the Great Lakes, and some Gulf Coast drainages.

The black sandshell can be up to 10 inches (25 cm) long, and is elongate and quadrate in shape. The shell is usually heavy, fairly thick, somewhat inflated and cylindrical.^[4]