In 1847, in his excellent essay on the “Pecora,” the late Professor Carl J. Sundevall established an “_Antilope lævipes_” basing it primarily on the figures of Geoffrey St.-Hilaire and Fr. Cuvier in the ‘Histoire Naturelle des Mammifères,’ of which we have already spoken. It is obvious, therefore, that Sundevall’s term “_lævipes_” is an absolute synonym of “_rufifrons_,” though he gives as his principal example a specimen from Sennaar in the Stockholm Museum. But, nevertheless, there would appear to be a closely allied species living in East Africa, which Heuglin, in his first work (‘Antilopen und Büffel’), referred to _Antilope leptoceros_, but which he subsequently in 1877 (‘Reise in Nordost-Afrika’) treated of under Sundevall’s name “_Antilope lævipes_.” Heuglin states that this Gazelle, of which the native name is “Abu-el-Harabat,” is found in Nubia, Kordofan, Sennaar, and Taka, as also near Suakin and on the plains of the Beni Amer, ascending to a height of about 1500 feet above the sea-level. Heuglin specially alludes to the want of knee-tufts in his _Antilope lævipes_, which is the case also in _Gazella rufifrons_. What this East-African Antelope of Sundevall and Heuglin may be we are quite unable to decide, not having been able to examine East-African specimens. It is possible, however, that it may be _Gazella rufina_, which we shall presently speak of. Of the examples of this Gazelle formerly in the Knowsley Menagerie we have already written. The Zoological Society of London have also, on several occasions, received living examples of this species from the West Coast of Africa. The first of these recorded of late years was purchased in August 1865, and the second, a female, in 1869. In June 1895 a female _Gazella rufifrons_ was placed under the Society’s care by the Hon. W. Rothschild, F.Z.S., and is still living in the Gardens. In May of last year a fine living pair of this species were received by the Zoological Society from a London dealer and subsequently purchased. It is from this pair that the accompanying figures of both sexes of this beautiful Gazelle (Plate LXVII.) have been prepared by Mr. Smit. These animals are still living in the Society’s Gardens. They stand about 24 inches in height at the shoulder, the male being slightly the taller of the two. Both male and female have a slight blackish nose-spot, as shown in our figures. The knee-brushes are quite imperceptible in these three specimens, and the knees are perfectly smooth. _May,_ 1898. 98. THE RUFOUS GAZELLE. GAZELLA RUFINA, THOS. _Gazella rufina_, =Thos.= P. Z. S. 1894, p. 467 (fig., skull). _Antilope lævipes_, =Sund.= K. Vet.-Ak. Handl. 1845, p. 266 (1847), form α, ex Sennaar; =id.= Hornschuch’s Transl., Arch. Skand. Beitr. ii. p. 262; Reprint, p. 82 (1848); =Heuglin=, Ant. u. Büff. N.O.-Afr. (N. Act. Leop. xxx. pt. 2) p. 6; =id.= Reise N.O.-Afr. ii. p. 100 (1877).