A Brooklyn beauty struts in Coney Island’s Mermaid Parade yesterday — covered by little more than pasties, panties and a pooch.

Andrea “Poison” Ivy and her tiny sailor, Homer, were among 4,000 colorful marchers at the 30th annual procession on Surf Avenue. Clear skies and warm temps drew tens of thousands of spectators.

Reigning over the wild festivities were the parade’s honorary Queen Mermaid and King Neptune — Brooklyn-born actress Annabella Sciorra, 52, and comedian Jackie Martling, 64.