I claim the ornamental design for an elongated cylindrical container, as shown and described.
FIG. 1 is a perspective view illustrating the end and one longitudinal side of a design for an elongated cylindrical container, the design being characterized by the concave cylindrical section which is illustrated as a tranparent material;
FIG. 2 is a side elevational view thereof, it being understood that the opposite side is identical in appearance;
FIG. 3 is an end elevational view thereof; and,
FIG. 4 is a perspective view of an alternate embodiment of FIG. 1, the only difference being that the concave cylindrical section which characterizes the design is an opaque material, it being understood that all other surfaces are the same as those of the first embodiment.