''Musculium'' is a genus of small freshwater

clam Clam is a common name for several kinds of bivalve molluscs. The word is often applied only to those that are edible and live as infauna, spending most of their lives halfway buried in the sand of the seafloor or riverbeds. Clams have two she ...

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 ...

molluscs 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 taxon, extant species of molluscs are recognized. The number of fossil sp ...

in the family

Sphaeriidae Sphaeriidae is a family of small to minute freshwater bivalve molluscs in the order Sphaeriida. In the US, they are commonly known as pea clams or fingernail clams. Heard, William H. 1977. Reproduction of fingernail clams (Sphaeriidae: ''Sphaeri ...

, the fingernail clams and pea clams.

Species

Species and subgenera within this genera include: Subgenus ''Musculium'' Link, 1807 * ''

Musculium lacustre ''Musculium lacustre'' is a species of small freshwater clam, an aquatic bivalve mollusc in the family Sphaeriidae, the fingernail clams and pea clams. Description The 8–11 mm. shell is oval to quadrangular in shape. The umbos which are ...

'' (O. F. Müller, 1774) * ''

Musculium transversum ''Musculium transversum'' is a species of freshwater bivalve from the family Sphaeriidae. Distribution and conservation status * Not listed in IUCN red list The International Union for Conservation of Nature (IUCN) Red List of Threatened Sp ...

'' (Say, 1829) Subgenus ? * ''

Musculium forbesi ''Musculium'' is a genus of small freshwater clams, aquatic bivalve molluscs in the family Sphaeriidae, the fingernail clams and pea clams. Species Species and subgenera within this genera include: Subgenus ''Musculium'' Link, 1807 * ''Muscul ...

'' (Philippi, 1869) * ''

Musculium lauricochae ''Musculium'' is a genus of small freshwater clams, aquatic animal, aquatic bivalve molluscs in the family Sphaeriidae, the fingernail clams and pea clams. Species Species and subgenera within this genera include: Subgenus ''Musculium'' Link, ...

'' (Philippi, 1869) * ''

Musculium titicacense ''Musculium'' is a genus of small freshwater clams, aquatic bivalve molluscs in the family Sphaeriidae, the fingernail clams and pea clams. Species Species and subgenera within this genera include: Subgenus ''Musculium'' Link, 1807 * ''Muscul ...

'' (Pilsbry, 1924)

References

Sphaeriidae Bivalve genera {{Sphaeriidae-stub