Wavy Turban

Astraea undosa.

They live in eastern Pacific waters in the inter-tidal zone.

Resources.

• http://www.marinespecies.org/aphia.php?p=taxdetails&id=718583
• https://bioone.org/journals/pacific-science/volume-71/issue-4/71.4.9/Diet-of-the-Wavy-Turban-Snail-Megastraea-undosa-Gastropoda/10.2984/71.4.9.short
• https://www.shells-of-aquarius.com/astraea_undosa.html