Seafood: cuttlefish, squid, shrimp roe, crab roe, fish roe, fish head, etc.
These days, however, many chefs substitute the crab roe with Japanese flying fish roe or tobiko.
Thaw the fish roe, sea urchin, and Artemia nauplii in a separate bowl.
Varieties have black and white, squama lotus stone, stone turtle veins, stone, bamboo, stone, fish roe, etc.