The similarities of a ritzy new seafood spot on the Upper East Side to a beloved, decades-old Montauk clam shack has shellfish lovers crying foul — and lawyers sending cease-and-desist letters.

Liz Hopkins, a 35-year-old who works in advertising and divides her time between Montauk and NYC, was stoked to try The Mark Clam Bar and assumed it was a pop-up from one of her favorite spots out ...

The classic seaside snack shop is located at 2025 Montauk HIghway in Amagansett. New this season is the "Shuck Truck," a ...

Clam Bar, Amagansett (2025 Montauk Hwy., Amagansett): This casual roadside spot is known for its excellent lobster rolls, as well as perfectly steamed lobster, Montauk Pearl oysters on the half ...

Clam Bar at Napeague. 2025 Montauk Hwy., Amagansett. This casual, roadside spot is known for its ample and excellent lobster salad roll, plus expertly steamed lobster, ...

For years, the seaside village of Montauk was off the radar of well-heeled Hamptonites, known mainly for its low-key clam-bar restaurants, family-run (and run-down) motels, and pristine cliffside ...