<p>Hard macaroni like hollow cylindrical tubes radiate out in random directions.</p>
<p>These hard worm shells can often be found in clusters.</p>
<ul><li>Keywords: critter; snail; tube snail; tidepools</li></ul>
NPS Photo
<a rel="nofollow" class="external text" href="https://npgallery.nps.gov/">NPGallery</a>