Other seafoods such as squid ("ika"), eel ("anago" and "unagi"), pike conger ("hamo"), octopus ("tako"), shrimp ("ebi" and "amaebi"), clam ("mirugai", "aoyagi" and "akagai"), fish roe ("ikura", "masago", "kazunoko" and "tobiko"), sea urchin ("uni"), crab ("kani"), and various kinds of shellfish (abalone, prawn, scallop) are the most popular seafoods in sushi. Oysters, however, are less common, as the taste is not thought to go well with the rice. "Kani kama", or imitation crab stick, is commonly substituted for real crab, most notably in California rolls.