Lampsilis

Lampsilis is a genus of freshwater mussels, aquatic bivalve mollusks in the family Unionidae, the river mussels. There are over 100 species in the genus.

== Aggressive mimicry == left|thumb|Aggressive mimicry in Lampsilis fasciola|L. fasciola Some species, notably Lampsilis ovata (pocketbook mussel) use aggressive mimicry to lure large predatory fish by using their mantle as a lure, ejecting larvae into the mouth of the fish when they strike. The larvae attach to the gills, using the fish's blood as food for several weeks.