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Bay scallops (Argopecten irradians) are small bivalve mollusks native to the western Atlantic coast, ranging from Nova Scotia to the Gulf of Mexico. They measure 2–3 inches in shell diameter, significantly smaller than their sea scallop relatives. Bay scallops possess a fan-shaped shell with radiating ridges and are distinguished by their delicate, slightly sweet flavor and tender meat. Unlike sea scallops, they contain two abductor muscles of nearly equal size, and the entire body—including the coral (roe) and adjacent tissues—is typically edible and desirable. Bay scallops are filter feeders and exhibit a peculiar behavioral characteristic: their shells contain dozens of small, simple eyes along the mantle edge that detect light and movement.

The species demonstrates seasonal reproductive cycles affecting meat quality and availability, with peak flavor occurring during cooler months. Bay scallop meat ranges in color from pale ivory to light orange, depending on diet and reproductive state.

Bay scallops are prized for their delicate meat and are commonly prepared through quick-cooking methods such as sautéing, pan-searing, and broiling to preserve tenderness. They are featured prominently in Asian cuisines (steaming, stir-frying), Mediterranean preparations (with white wine and herbs), and contemporary American seafood cookery. The meat's mild sweetness pairs well with citrus, butter, white wine, and light aromatics. Bay scallops require minimal preparation—typically only a quick rinse and removal of the small side muscle—and benefit from high-heat cooking with minimal seasoning to avoid overcooking their delicate flesh. They are also popular in seafood risottos, pasta dishes, and as ingredients in composed seafood platters.