Mermaid Oyster Bar is a seafood bar in New York that serves oysters, lobster rolls, and raw clams. During happy hour, you can eat oysters with lemon, vinegar, and chili, and also order lobster roll tacos. You check the day's oyster selection before ordering, and raw clams and salmon tartare are also on the menu. The oysters and lobster rolls are on the pricier side.