- Animals
- ›Arthropods
- ›Crustaceans
- ›Typical Crustaceans
- ›Barnacles and Copepods
- ›Barnacles and Allies
- ›Barnacles
- ›Normal Barnacles
- ›Thoracican Barnacles
- ›Symmetrical Sessile Barnacles
- ›Balanoidea
- ›Balanidae
- ›Balanus

Pacific Acorn Barnacle
Balanus glandula
Acorn barnacles (Balanus glandula) are one of the most common barnacle species on the Pacific coast of North America, distributed from the U.S. state of Alaska to Bahía de San Quintín near San Quintín, Baja California. They are commonly found in intertidal waters on mussels, rocks and pier pilings.
Where it lives
Recorded sightings
—
geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Balanus glandula in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 81610.