The present invention structure and resource conservation in the molding, can be labor-saving, transport, storage, handling in the aquaculture field, deformation, breakage, without distortion, also attached easily, and leaving a small scallops locking device of spats and to provide a parallel shaped connecting scallop tool locking device. A scallop insertion tip 4, 4 at both ends of the core 3 is formed, a tip engaging portion 5 and 5 of the pair of shells on the inner side of the is provided, by starting from the vicinity of the center of the core a pair of rope retaining projections 6 and 6 are provided symmetrically. In addition there is within the interval of rope stop projection, the connecting member 7 extending in the orthogonal direction from the position with respect to the foundation in close proximity to one of the rope stop projection provided, the distal end portion and the other of the connecting member of the other rope stop projection By linking the front end portion of, and has a possible connection with the foundation of other scallops locking device which is adjacent structure. A coupling according to one connecting member, characterized in that a number is formed by sequentially connecting a strip by connecting the front end portion of the other coupling member. .BACKGROUND【課題】構造および成形において省資源、省力化ができ、輸送、保管、養殖現場の取り扱いにおいて、変形、破損、歪みが無く、取付けも容易で、かつ稚貝の脱離が少ない帆立貝係止具及び並列状連結帆立具係止具を提供する。【解決手段】根幹3の両端に帆立貝挿入先端部4,4’が形成され、その先端部より内側に一対の貝の係止部5,5’が設けられ、根幹の中心付近を起点にして一対のロープ止め突起6,6’が左右対称に設けられる。さらにロープ止め突起の間隔内にあり、一方のロープ止め突起に近接する位置から根幹に対して直交方向に伸びる連結用部材7が設けられ、他方のロープ止め突起の先端部は他方の連結用部材の先端部と連結することにより、隣接する他の帆立貝係止具の根幹と連結可能な構造を有する。一本の連結用部材による連結と、他方の連結用部材の先端部との連結により多数順次帯状に連結してなることを特徴とする。【選択図】図1
