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.

Genera

Genera in the family Sphaeriidae include:
Sphaeriidae are hermaphrodites with internal fertilization. Developing young are incubated within their mother, and newborn clams look like miniature copies of the adults.
Parasites and/or predators include the Sciomyzidae.