| Knobby rocksnail | |
|---|---|
| Conservation status | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| (unranked): | clade Caenogastropoda clade Sorbeoconcha |
| Superfamily: | Cerithioidea |
| 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 snails, aquatic gilled gastropod mollusks in the family Pleuroceridae. This species is endemic to the United States.