Giant Barnacle
(Balanus nubilus)

image of a Giant Barnacle

Image ID: 207-01

Comments : Giant Barnacles are filter feeders, and are therefore usually found in current swept areas where there is solid structure for them to get a foothold. The barnacle start life free swimming, then settle down and attach their head to a rock. The feather-like appendage which it uses to trap food in the current is actually the animals legs, and can rotate about 90 degree. Each barnacle also contains both sets of sex organs.
Common name : Giant Barnacle
Scientific Name : Balanus nubilus
Location Found : Z's Reef, South Puget Sound
Actual Size : 3 inches
Camera Used : Sea & Sea MMII EX w/1->3T macro
Natural History :