Semibalanus balanoides
| Semibalanus balanoides | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Arthropoda | 
| Class: | Thecostraca | 
| Subclass: | Cirripedia | 
| Order: | Balanomorpha | 
| Family: | Balanidae | 
| Genus: | Semibalanus | 
| Species: | S. balanoides | 
| Binomial name | |
| Semibalanus balanoides | |
| Synonyms | |
| Balanus balanoides Linnaeus, 1767 | |
Semibalanus balanoides (common barnacle, common rock barnacle, or northern rock barnacle) is a common and widespread boreo-arctic species of acorn barnacle. It is common on rocks and other substrates in the intertidal zone of north-western Europe and both coasts of North America.