Opalescent Squid (Doryteuthis opalescens)
Opalescent squid (photo credit: Central Coast Biodiversity)
Other Names: Common squid, market squid, calamari, opal squid
Description: Although squid themselves are very rarely found in the tide pools at Haystack Rock, their egg sacs wash ashore occasionally.
Squid egg sac (photo credit: Zoe O’Toole)