Amphibalanus improvisus
| Bay barnacle | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Thecostraca |
| Subclass: | Cirripedia |
| Order: | Balanomorpha |
| Family: | Balanidae |
| Genus: | Amphibalanus |
| Species: | A. improvisus |
| Binomial name | |
| Amphibalanus improvisus (Darwin, 1854) | |
Amphibalanus improvisus, the bay barnacle, European acorn barnacle, is a species of acorn barnacle in the family Balanidae.