Found this chiton shell in San Simeon. Any idea what species it is?

A chiton shell discovered in San Simeon has sparked curiosity among marine enthusiasts. The submitter, u/disneyfacts, is seeking assistance in identifying the species, noting that while it resembles a blue-lined chiton, the unique pattern does not align with known varieties. Chitons, known for their distinct shell plates and diverse appearances, can often be challenging to classify. Community insights can help clarify this intriguing find, contributing to a greater understanding of local marine biodiversity and the importance of studying these unique organisms.