| Knobby rocksnail | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Family: | Pleuroceridae |
| Genus: | Lithasia |
| Species: | L. curta |
| Binomial name | |
| Lithasia curta (I. Lea, 1868) | |
The knobby rocksnail, scientific name Lithasia curta, is a species of medium-sized freshwater snail, an aquatic gilled gastropod mollusk in the family Pleuroceridae. This species is endemic to the United States.
