| Semicassis undulata | |
|---|---|
| |
| Two live individuals in Archi, Reggio Calabria, Italy | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Family: | Cassidae |
| Genus: | Semicassis |
| Species: | S. undulata
|
| Binomial name | |
| Semicassis undulata (Gmelin, 1791)
| |
| Synonyms[1] | |
| |
Semicassis undulata is a Mediterranean species of medium-sized sea snail, a marine gastropod mollusc in the subfamily Cassinae, the helmet snails and bonnet snails.