DSC_5669 Cockle shell worm (Boccardia acus) small worms which grow on cockle shells, etching and burrowing sqiggly patterns on the cockle's shell. The fine, extended feeding structures are just visible at the ends of the sandy tubes. Otakau
DSC_11125 Cockle shell worm (Boccardia acus) detail of etched burrows on a cockle shell. The tiny worms etch sqiggly patterns on cockle shells. Found in the intertidal to upper subtidal zone, in sheltered waters to moderately exposed coasts, and often in estuaries or harbours. Waipuna Bay, Otago Harbour *
DSC_1234 Cockle shell worm (Boccardia acus) detail of etched burrows on a cockle shell. The tiny worms etch sqiggly patterns on cockle shells. Found in the intertidal to upper subtidal zone, in sheltered waters to moderately exposed coasts, and often in estuaries or harbours. Warrington *
