LIST OF ILLUSTRATIONS IN THE TEXT.

VOL. II.
Fig.		Page
23.	Ourebia scoparia, ♂	[17]
24.	Skull of Ourebia haggardi, ♂	[30]
25.	Skull of Nesotragus livingstonianus, ♂	[57]
26.	Skull of Nesotragus pygmæus, ♂	[64]
27.	Skull of Madoqua phillipsi	[77]
28.	Fore part of skull of Madoqua damarensis, side view	[80]
28a.	Upper view of snout of M. damarensis
28b.	Lower view of snout of M. damarensis
28c.	Lower view of snout of M. saltiana
28d.	Posterior mandibulary molar of M. saltiana
28e.	Posterior mandibulary molar of M. damarensis
29.	Head of Madoqua kirki	[84]
29a.	Skull of Madoqua kirki (side view)	[85]
29b.	Skull of Madoqua kirki (upper view)	[85]
30.	Skull of Madoqua guentheri (side view)	[90]
30a.	Skull of Madoqua guentheri (from above)	[90]
31.	Skull and horns of Cobus crawshayi	[110]
32.	Head and foot of “Nsumma Antelope”	[117]
33.	Head of Cobus maria, ♂	[123]
34.	Head of Cobus thomasi, ♂	[135]
35.	Horns of Cobus vardoni.—a. Side view; b. Front view	[143]
36.	Head of Cobus lechee	[151]
37.	Horns of Cervicapra arundinum from Nyasaland	[163]
38.	Skull of Cervicapra fulvorufula	[168]
39.	Skull of Cervicapra bohor	[169]
40.	Head of Cervicapra redunca	[174]
41.	Horns of Cervicapra fulvorufula, not adult	[181]
42.	Horns of Cervicapra fulvorufula, aged	[181]
43.	Head of Cervicapra chanleri	[184]
44.	Head of Vaal Rhébok, ♂	[193]

THE BOOK OF ANTELOPES.

VOL. II.

Subfamily III. NEOTRAGINÆ.

General Characters.—Size small. Muzzle either naked or elongated and hairy. Large anteorbital glands present, opening on the face by a small circular hole. Tail medium or short. False hoofs present or absent.

Skull with large anteorbital fossæ and, except in Neotragus, anteorbital vacuities. Frontal bones not projected backwards between the parietals, the horns placed above the hinder part of the orbits.

Horns present only in the male; short, nearly or quite straight, vertical or reclining backwards; ridged basally, smooth terminally.

Range of Subfamily. Africa.

The numerous small Antelopes belonging to this subfamily were all included by Sir Victor Brooke in two genera, one consisting of the Dik-diks (Madoqua) and the other of all the rest (called by him “Nanotragus”). Bearing in mind, however, the naturalness of the smaller groups into which “Nanotragus” may be divided, and the readiness with which these groups may be recognized and defined, we think it better to allow six genera in all, the distinguishing points of which are shown in the following synopsis:—

A. Nose not specially elongated, its tip with a distinct naked muffle. Crown not tufted.
a. Hoofs cylindrical, not pointed, the animal standing more or less on their tips. Hairs thick and pithy like those of a Musk-Deer. Horns vertical 1. Oreotragus.
b. Hoofs triangular, pointed, as in other Antelopes. Hairs normal.
a¹. A naked glandular spot below ear. Accessory hoofs present. Anteorbital fossa of skull very large 2. Ourebia.
b¹. No glandular spot below ear. Accessory hoofs absent (except in Raphicerus melanotis).
a². Horns nearly vertical. Anteorbital fossa small. 3. Raphicerus.
b². Horns lying back nearly or quite to profile-line of face. Anteorbital fossa large.
a³. Horns reaching to or past back of head. Anteorbital and nasal vacuities present 4. Nesotragus.
b³. Horns not nearly reaching back of head. No anteorbital or nasal vacuities 5. Neotragus.
B. Nose elongated, its tip hairy round the nostrils. Crown tufted. 6. Madoqua.

The recently discovered Beira Antelope of Somaliland (Dorcotragus megalotis) might also be supposed to be a member of this subfamily; but, after a careful consideration of its characters, we think it may best be regarded as an aberrant Gazelle, and as such we therefore propose to treat it. The undeniable resemblance that the nasal region of its skull shows to the same part in Madoqua appears, on the whole, more likely to be due to purely adaptive modification than are the various characters which it possesses in common with the members of the Gazelline group.