''Theliderma'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

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, bival ...

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 e ...

s in the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

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 diverse ...

. They are native to North America. This genus is sometimes classified in an expanded ''

Quadrula ''Quadrula'' is a genus of freshwater mussels, aquatic bivalve mollusks in the family Unionidae native to rivers of the American Midwest and mid-south. All have thick nacreous shells with well-developed hinge teeth, many also with external she ...

''.

Species within the genus ''Theliderma''

Note: Taxa with a " †" symbol are extinct due to human activity * ''

Theliderma cylindrica The rabbitsfoot (''Theliderma cylindrica'') is a species of freshwater mussel. It is an aquatic bivalve mollusk, in the family Unionidae, the river mussels. This species is native to the United States, where it is widespread in the drainages ...

'' - Rabbitsfoot * ''

Theliderma intermedia ''Theliderma intermedia'', the Cumberland monkeyface pearly mussel or Cumberland monkeyface, is a species of freshwater mussel in the family Unionidae, the river mussels. This aquatic bivalve mollusk is native to Tennessee and Virginia in the Un ...

'' - Cumberland monkeyface * ''

Theliderma metanevra ''Theliderma metanevra'', common name the monkeyface, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. It is native to the eastern United States The United States of America ( ...

'' - Monkeyface * ''

Theliderma sparsa ''Theliderma sparsa'', the Appalachian monkey-face pearly mussel or Appalachian monkeyface, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. This species is endemic to western Virginia an ...

'' - Appalachian monkeyface * †''

Theliderma stapes ''Theliderma stapes'', the stirrup shell or stirrupshell, was a species of bivalve in the family Unionidae. It was endemic to eastern Mississippi and western Alabama in the United States. It was last observed in 1987 and was proposed for delist ...

'' - Stirrup shell * †''

Theliderma tuberosa ''Theliderma tuberosa'', the rough rockshell, is a species of freshwater mussel. It is an aquatic bivalve mollusk in the family Unionidae, the river mussels. It has sometimes been treated as a variety or big-river ecotype of '' Theliderma metan ...

'' - Rough rockshell Bivalve genera {{Unionidae-stub