Pachychilus laevissimus
Pachychilus laevissimus is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Pachychilidae. The species was first described by G.B. Sowerby I in 1824.
Pachychilus laevissimus is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Pachychilidae. The species was first described by G.B. Sowerby I in 1824.