“The East-African Waller’s Gazelle is very much smaller than that found in the Somali country. There is no mistaking this Antelope for any other, on account of its extraordinarily long and thin neck, which in the case of a fully adult buck, killed by myself at Merereni, was only 10 inches in circumference. Two females measured only 7 inches each round the neck. When walking and seen at a distance these animals look not unlike pigmy Giraffes, as they carry their long necks stretched out at an angle. They frequent the open bush fringing the outskirts of dense thickets, into which they at once retreat on being disturbed. Their note of alarm is a low short ‘buzz’! This Gazelle is essentially a bush-feeder. At Merereni I once watched a doe feeding on a small-leaved bush not unlike the privet in appearance, and several times I saw her rear up on her hind legs, bend down a branch with her fore legs, and feed on the leaves in this upright position like a goat. This quaint-looking little Antelope, like the Bushbuck, is apt to haunt one particular spot, and may be seen in or quite near to it for weeks together. They are very shy and not easy to stalk, and, as they have a happy knack of hiding behind bushes in the most effective manner, they are not easy to see.” The Gerenuk was well represented in the collection of Mammals obtained by Mr. D. G. Elliot in the course of his recent expedition to Somaliland, and a series of specimens of this Antelope obtained on that occasion has been mounted in characteristic attitudes in one of the large show-cases of the Field-Columbian Museum at Chicago. Mr. Elliot has kindly sent us some photographs of this interesting group, which show the male, female, and young, and their peculiar manner of feeding. The Gerenuk is represented in the British Museum by a fine mounted pair obtained by Herr Menges in the neighbourhood of Berbera, from which our illustration of both sexes (Plate LXXIV.) has been prepared by Mr. Smit. There are also four other skins of both sexes, purchased of Herr Menges, and the skin figured by Sclater (P. Z. S. 1884, pl. xlix.), which was presented to him by Herr Hagenbeck, but was likewise originally procured by Herr Menges. In the National Collection there are also a skin and skull of a male of this Antelope from Burao Wells, Somaliland, presented by Mr. T. W. H. Clarke, another skin and skull from the hills south of Berbera, presented by Capt. J. R. Harkness, R.A., and a mounted skeleton from Somaliland, obtained by purchase. From the southern part of its range the British Museum has one of the original skulls from the River Juba district upon which the species was founded, and three skulls and some separate horns from the extreme south of the Somali coast, obtained by Sir John Kirk. _September,_ 1898. GENUS IX. DORCOTRAGUS.