The ornamental design for a latch for a crib, as shown and described.
FIG. 1 is a top front perspective view of a latch for a crib showing our new design;
FIG. 2 is a bottom front perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a cross-sectional view thereof, taken along line 8-8 of FIG. 6;
FIG. 9 is an enlarged front elevational view of a right side portion of a latch for a crib, the left side portion being a mirror image thereof; and,
FIG. 10 is a bottom front perspective view of FIG. 9.
The broken lines adjacent the shaded areas represent the boundary of the claimed design. Other broken lines represent the environmental subject matters. None of the broken lines form part of the claimed design.