Gooseneck barnacle, also known as stalked barnacle, is a type of crustacean that is commonly found on rocky shores, cliffs, and other hard surfaces near the ocean. Although gooseneck barnacle is the most commonly used term, there are many synonyms for this fascinating creature. Some of these synonyms include percebes, spanish barnacle, goose barnacle, and rock barnacle. The term "percebes" is particularly common in Spain and Portugal, where it is considered a delicacy. Goose barnacle derives its name from the fact that gooseneck barnacles resemble the long neck of a goose. Regardless of what you call them, these creatures are a fascinating and important part of many coastal ecosystems.