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SCIENTIFIC NAME
COMMON NAME
THUMBNAILS
Regno Animalia
Phylum Arthropoda
Class Maxillopoda
Order Thoracica
Family Balanidae
Genus Balanus
Species amphitrite
Classification Darwin, 1854
Common name striped barnacle, purple acorn barnacle

Geographic Range native to the south-western Pacific and of Indian Ocean. It is widespread all over the world in mild and warm waters.
Physical Characteristics it has a light conical shell with vertical violet and brown stripes. It differs from other members of the same species because it has teeth on the margin of its volcano-like shell. It has a small spur on its hind-quarters, which are one of the two pairs of plates surrounding the mouth of the barnacle.
Notes it has some specialised processes, called "cirrus", which are usually employed to catch particles of food in the water. It is monoecious, even if the insemination between different individuals might take place in very dense colonies.
Habitat it is commonly found in the intertidal fouling communities. It lives stuck onto every available solid surface including rocks, ship hulls, oyster shells, stakes.

Sources  
References Bishop Museum
Web References http://www2.bishopmuseum.org/
Source of the photo http://www2.bishopmuseum.org/HBS/invertguide/images/balanus_a1.jpg

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