The ornamental design for a petlitterscoop, as shown and described.
FIG. 1 is a perspective view of a pet litter scoop showing my new design;
FIG. 2 is a front elevational view thereof, the rear being a mirror image thereof;
FIG. 3 is a left-side elevational view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a right side elevation view thereof; and,
FIG. 7 is a perspective of second embodiment of FIG. 1, the only difference being the number of tines, it being understood that all other surfaces are the same as those of the first embodiment.
The dotted lines in the drawings are included for the purpose of illustration and form no part of the claimed design.