The ornamental design for a baitretaininghook substantially, as shown and described.
FIG. 1 is a perspective view of a bait retaining hook;
FIG. 2 is a front elevation view of a bait retaining hook;
FIG. 3 is a rear elevation view of a bait retaining hook;
FIG. 4 is a right side view of a bait retaining hook;
FIG. 5 is a left side view of a bait retaining hook;
FIG. 6 is a top plan view of a bait retaining hook; and,
FIG. 7 is a bottom plan view of a bait retaining hook.
It being understood that the broken lines in the drawings are for illustrative purposes only and form no part of the claimed design.
Portions of the bait retaining hook are shown broken away to indicate that no particular length is claimed, and any portion shown between the breaks forms no part of the claimed design.