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Phylum Arthropoda, Class Cirripedia

Barnacles

Barnacles are filter-feeding arthropods permanently attached to rocks or floating items and debris.  The animal resembles a shrimp with comb-like legs extended from the shell to capture drifting bits of food.  They are common members of the fouling community in protected bays & harbors.

 

HAWAII

Nesochthamalus intertextus 

PURPLE ROCK BARNACLE

 

 

Euraphia hembeli

HEMBEL'S ROCK BARNACLE

 

Lepas anserifera

PELAGIC GOOSE BARNACLE

 

Paralepas sp.

PARASITIC CRAB BARNACLE

 


NORTHEAST PACIFIC

Balanus nubilus

GIANT BARNACLE

 

Semibalanus cariosus

THATCHED BARNACLE

 

Pollicipes polymerus

GOOSE BARNACLE

 


WESTERN ATLANTIC

Balanus improvisus

BAY BARNACLE