The part of the membrane that lines the walls of the cavity…

The part of the membrane that lines the walls of the cavity for example:  this type of serosae lines the walls of the thoracic cavity or the walls of the pericardial cavity or the walls of the abdominopelvic cavity.  This serosae is not in contact with the organ but it is in contact with the tissue.  Please select the name for this type of serosae.