(4)The depositary should be able to continue to carry out its duties effectively where the custody of assets belonging to its UCITS clients is delegated to a third party. It is therefore necessary to require that the depositary maintains a record in the financial instruments account it has opened in the name of a UCITS or in the name of the management company acting on behalf of the UCITS showing that the assets kept in custody by a third party belong to that particular UCITS.