<;P>;PROBLEM TO BE SOLVED: To provide a scallop-engaging tool capable of saving resource and power in its structure and molding, also having no deformation, breakage and distortion in transportation, storage and the handling at an actual culturing place, also stably attaching to a base line, having easiness for the same and having very few drop out of young shellfishes. <;P>;SOLUTION: This scallop-engaging tool in parallel form is characterized by linking many adjacent scallop-engaging parts having a structure of installing a pair of drop out-preventing parts at both ends in longitudinal direction of a base rod, and a pair of pin-holding parts 8 by an interval of nipping the base line in the vicinity of the base rod one by one in parallel in the at least two points of a joining point of a central linking member 9 extending in right angle-crossing direction toward the longitudinal direction of the base rod in the vicinity of center of the longitudinal direction of the base rod and a joining point of the tip end part of the pin-holding part. <;P>;COPYRIGHT: (C)2011,JPO&INPIT