Sometimes, Rebecca Charles wishes she were a little less influential.

She was, she asserts, the first chef in New York who took lobster rolls, fried clams and other sturdy utility players of New England seafood cookery and lifted them to all-star status on her menu. Since opening Pearl Oyster Bar in the West Village 10 years ago, she has ruefully watched the arrival of a string of restaurants she considers “knockoffs” of her own.

Yesterday she filed suit in Federal District Court in Manhattan against the latest and, she said, the most brazen of her imitators: Ed McFarland, chef and co-owner of Ed’s Lobster Bar in SoHo and her sous-chef at Pearl for six years.

The suit, which seeks unspecified financial damages from Mr. McFarland and the restaurant itself, charges that Ed’s Lobster Bar copies “each and every element” of Pearl Oyster Bar, including the white marble bar, the gray paint on the wainscoting, the chairs and bar stools with their wheat-straw backs, the packets of oyster crackers placed at each table setting and the dressing on the Caesar salad.

Mr. McFarland would not comment on the complaint, saying that he had not seen it yet. But he said that Ed’s Lobster Bar, which opened in March, was no imitator.