FIG. 1 is a top view of the index finger biometric aperture;

FIG. 2 is a left side view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a top view of a second embodiment of the index finger biometric aperture;

FIG. 8 is a left side view thereof;

FIG. 9 is a front view thereof;

FIG. 10 is a right side view thereof;

FIG. 11 is a rear view thereof;

FIG. 12 is a bottom view thereof;

FIG. 13 is a top view of a third embodiment of the index finger biometric aperture;

FIG. 14 is a left side view thereof;

FIG. 15 is a front view thereof;

FIG. 16 is a right side view thereof;

FIG. 17 is a rear view thereof; and,

FIG. 18 is a bottom view thereof.

The broken line drawing of a mouse in all views is for illustrative purposes only and forms no part of the claimed design.