---
title: "Pacific Acorn Barnacle"
description: "Balanus glandula — Andere dieren. Balanus glandula (commonly known as the North American acorn barnacle, Pacific acorn barnacle or common acorn barnacle) is one of the most common barnacle species on the Pacific coast of North America, distributed from the U.S."
canonical: https://animalchecklist.com/nl/animal/pacific-acorn-barnacle
last_updated: 2026-09-20
---

# Pacific Acorn Barnacle

> Balanus glandula — Andere dieren. Balanus glandula (commonly known as the North American acorn barnacle, Pacific acorn barnacle or common acorn barnacle) is one of the most common barnacle species on the Pacific coast of North America, distributed from the U.S.

- Scientific name: *Balanus glandula*
- Category: `other` (Andere dieren)
- Habitats: `sea` (Zee en kust)
- iNaturalist observations: 12753
- Wikidata: [Q3809072](https://www.wikidata.org/wiki/Q3809072)
- iNaturalist taxon: [81610](https://www.inaturalist.org/taxa/81610)

## Names

- en: Pacific Acorn Barnacle
- es: Percebe bellota del Pacífico

## Countries with the most observations

US (3500), CA (2403), AR (89), ZA (36), MX (7)

## Summary

Balanus glandula (commonly known as the North American acorn barnacle, Pacific acorn barnacle or common acorn barnacle) is 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 the upper intertidal zone on rocks, wood, and pier pilings. They can also be found growing on other organisms such as crustaceans, gastropods, bivalves, and other barnacles. This species is also highly adaptable to varying conditions, even being able to tolerate estuarine conditions of poor…

Text: Wikipedia (en), CC BY-SA 4.0 — https://en.wikipedia.org/wiki/Balanus_glandula

## Photo

![Pacific Acorn Barnacle](https://animalchecklist.com/img/animals/pacific-acorn-barnacle/medium.jpg)

Photo: Al Kordesch · CC0 · inaturalist — https://www.inaturalist.org/observations/18151654

## Machine access

`GET https://animalchecklist.com/api/v1/animals/pacific-acorn-barnacle?lang=nl` — see [openapi.json](https://animalchecklist.com/openapi.json).