This pretty rock snail was about 2" long, found under a rock with dogwinkles and isopods in the lowest intertidal zone during a minus tide. The ridges on its back are unusual. They don't seem deeply grooved enough to be a Leafy Hornmouth.
Here are 9 Nucella lamellosa or Frilled Dogwinkles, and masses of their egg capsules, each of which contains up to 80 eggs. The eggs are known as "Sea Oats," and look a bit like honeycomb when freshly laid. As they age, they seem to darken to a purplish or browning color. The Nucella lamellosa is usually an inch or so long, but a few grow to about 3" or bigger.
The orange snail
It's always rather special to find an orange Nucella Lamellosa, or Wrinkled Dogwinkle, especially one as pretty as this one!
The eggs of the Nucella Lamellosa, Wrinkled Dogwinkle, always remind me of honeycomb, though they're known as sea oats.