rock barnacle
English
Noun
rock barnacle (plural rock barnacles)
- Semibalanus balanoides, an acorn barnacle common on rocks and other substrates in the intertidal zone of northwestern Europe and both coasts of North America.
References
rock barnacle on Wikipedia.Wikipedia Semibalanus balanoides on Wikispecies.Wikispecies Semibalanus balanoides on Wikimedia Commons.Wikimedia Commons