A Serpulid Worm extends its feathery branchial crown
to capture both food and oxygen from the passing currents.
The visible part -- less than 1 inch (25mm) across --
is only a small portion of the animal.
The rest, which can extend another 4 inches (100mm),
stays hidden in a calcareous tube manufactured
by the worm and attached to hard substrate, such as rocks.
These worms range from San Diego to Alaska.
Lens: 105mm macro
Location: Santa Cruz Island, CA
©2000 Garry McCarthy