Note 2 — Subfamily I. BUBALIDINÆ.

The term anteorbital gland denotes the so-called "tear-bag” which opens on the face of many Antelopes and Deer. The lachrymal pits are placed in a depression of the skull below the orbit of the eye in the lachrymal bone, and contain the above-mentioned gland. The lachrymal vacuity is a larger or smaller aperture between some of the component bones of the skull, situated near the lachrymal pit and at the base of the nasal bones, which form a thin roofing over the cavity of the nose. The term supraorbital pits is applied to deep excavations in the forehead of the skull between the eyes, which lead into perforations traversing the thickness of the bone. The molar teeth are the last three teeth on either side of each jaw.