[2] 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.
[3] These three measurements, when obtainable, will be given of the skull of every species throughout the work. The “basal length” is taken from the front lower edge of the large hole at the back of the skull, the foramen magnum, to the front of the muzzle, in a straight line; the other two explain themselves. The fourth and fifth measurements are only given in this genus to show the development of the frontal elongation.
[4] These variations in curvature are probably mainly due to differences in age, the growth of the curved basal part of the horns giving at the various stages widely different directions to their tips.—S. & T.
[5] See Mr. Ravenstein’s narrative of this journey, Pr. R. G. S. xiii. p. 193 (1891).
[6] See “Routes and Districts in Southern Nyassaland,” by Lieut. B. L. Sclater, R.E., Geogr. Journ., Nov. 1893.
[7] The following are the chief references to the Koba:—
Le Koba, Buff. Hist. Nat. xii. p. 210, but not p. 268, or the horn pl. xxxii. fig. 2.
Senegal Antelope, Pennant, Syn. Mamm. p. 38 (1764) (name and locality, but not description or woodcut of head, which refer to Bubalis caama).
Antilope koba, Erxl. Syst. R. A. p. 293 (1777) (name from Buffon, description from Pennant).
Antilope senegalensis, G. Cuv. Dict. Sci. Nat. ii. p. 235 (1804) (name based on Pennant).