The largest of 5 species of moon snails that live in this area.
They spend most of their time plowing through the sand in search of food, mostly clams. Look for lumps on the beach where the sand looks like it is “cracking” open.
They eat clams by surrounding them with their gushy foot, then drilling a hole in the clam’s shell. Moon snails have a straw-like tube to slurp up the clam from inside its shell. Look for shells that have a perfectly round hole in them.