A scallop was a type of edible mollusk from Earth.
While trying to find out Malcolm Reed's favorite food in 2151, Hoshi Sato asked Reed's friend Mark Latrelle if the specialty of a restaurant Reed and Latrelle had visited was swordfish, mahi-mahi, scallops, or halibut. Reed though had only chosen the restaurant because of Maureen, a waitress who worked there. (ENT: "Silent Enemy")
A 2250s display graphic described tribbles as a potential scallop-type meat source for _____. (ST: "The Trouble with Edward")