Mass. Gen. Laws ch. 242, § 5

Such damages may be recovered in tort by one or more of the other co-tenants, without naming any one except the plaintiff, one half to the use of the co-tenants who associate themselves with the plaintiff in bringing the action, and the other half to their use and that of all the other co-tenants except the defendant, to be divided among them in each class in proportion to the value of their respective interests in the land.