The ornamental design for a bellcurveshapedcontoured soft sided temporary bathtub liner, as shown and described.
FIG. 1 is a perspective view of the contoured bathtub liner embodying the design of the present invention.
FIG. 2 is a side elevational view thereof;
FIG. 3 is an end elevational view thereof;
FIG. 4 is an end elevational view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a perspective view of the bathtub liner in an unassembled, uninstalled position displaying one version of the three dimensional bell curve shaped contours in its two dimensional plane thereof.