The ornamental design for the turtleneck shirt and sweater, as shown and described.
FIG. 1 is the front view of the turtleneck shirt and sweater, showing my new design, the rear of the torso portion being substantially similar to the front;
FIG. 2 is an enlarged fragmentary view of the neck portion, showing the front elevation view thereof;
FIG. 3 is an enlarged fragmentary view of the neck portion, showing the perspective view thereof;
FIG. 4 is an enlarged fragmentary view of the neck portion, showing the right elevation view, with a left elevation view being identical to that shown; and,
FIG. 5 is an enlarge fragmentary rear elevation view of the said FIG. 1.