Balanus aquila

Balanus aquila is a species of acorn barnacle in the family Balanidae. It is found off the California coast from San Francisco to San Diego from the bottom of the intertidal zone down to depths of 18 m.[3] It is preyed upon by fish, sea stars, and certain carnivorous snails. Fish also rub against the barnacles to clean themselves of parasites, which wears the barnacles shells to a smooth surface.[4]

Balanus aquila
Conservation status
Data Deficient  (IUCN 2.3) [1]
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Crustacea
Class:	Maxillopoda
Infraclass:	Cirripedia
Order:	Sessilia
Family:	Balanidae
Genus:	Balanus
Species:	B. aquila
Binomial name
Balanus aquila Pilsbry, 1907 [2]

References

1. World Conservation Monitoring Centre (1996). "Balanus aquila". IUCN Red List of Threatened Species. Retrieved August 9, 2007.
2. "Balanus aquila". Integrated Taxonomic Information System.
3. Charles L. Powell, II (1998). The Purisima Formation and related rocks (Upper Miocene – Pliocene), Greater San Francisco Bay Area, Central California: review of literature and USGS collection (now housed at the Museum of Paleontology, University of California, Berkeley) (PDF). United States Geological Survey.
4. Charles H. Turner, Earl E. Ebert & Robert R. Given (1969). "Balanus aquila Pilsbry, 1907—acorn barnacle". Fish Bulletin 146: Man-Made Reef Ecology. State of California, Department of Fish and Game.