Complex sentence: The striped nerite, scientific name "Theodoxus transversalis", is a species of small freshwater snail with an operculum, an aquatic gastropod mollusk in the family Neritidae, the nerites.
Split into simpler sentences: The striped nerite ("Theodoxus transversalis") is a small species of freshwater snail with an operculum. It is an aquatic gastropod mollusk in the family Neritidae, the nerites.