Rarely see these guys at Pillar Point - this one was huge!
As a child visiting Monterey county we collected shells; alas this wonderful segmented mollusk was not collectible unless you copped the entire creature, and of course hid the smelly corpse from Mother until it yielded it's imperishable segments.
We'd the same issue with our several expired turtles...
Saw this black chiton at the bottom of a tide pool at Point Lobos State Reserve
The Neoloricata comprise the living representatives of the polyplacophoran molluscs.