The “Great Scallop” or “King Scallop”, Pecten maximus, is a species of scallop, an edible saltwater clam, a marine bivalve mollusk belonging to the family Pectinidae, the scallops.
This particular scallop is the type species of the genus.
Pecten maximus may in fact be conspecific with Pecten jacobaeus, the “Pilgrim’s Scallop”, which as a much more restricted distribution.
Royal Dutch Shell, an energy corporation, derives its highly recognizable logo from this specific species.
Image Caption: Pecten maximus. Credit: Manfred Heyde/Wikipedia (CC BY-SA 3.0)