||native to the south-western Pacific and of
Indian Ocean. It is widespread all over the world in mild and warm waters.
||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.
||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.
||it is commonly found in the intertidal fouling
communities. It lives stuck onto every available solid surface including
rocks, ship hulls, oyster shells, stakes.