As already stated in our remarks on the preceding species, we are by no means satisfied as to the specific difference of the Steinbok of East Africa from the corresponding form met with south of the Zambesi. But until further evidence on this point is available we will not dissent from the views of Herr Matschie, who has decided that the East-African form is distinct, and has proposed to call it after Herr Oscar Neumann, to whom the Berlin Museum is indebted for its specimens. Herr Neumann, who has recently returned from a most successful expedition, in which he traversed unexplored portions of German East Africa up to Lake Victoria and returned through British territory, met with this Antelope, as he kindly informs us, in Northern Ugogo, Iranga, Usandawe, and near Mount Gurui. He describes its habits as almost like those of _Madoqua kirki_ and _Cephalophus harveyi_, with which it is often found in company in the thinly-bushed districts. But it also occasionally goes out into the open prairies, and then lies concealed in the tall grasses like the Reedbucks. Its Swahili name is given as ‘Dondoro.’ In his appendix to Sir John Willoughby’s ‘East Africa and its Big Game,’ Mr. Hunter includes the “Steinbok” amongst the Antelopes met with in the plains round Kilimanjaro, where, he says, it is very often seen in the long grass. Mr. F. J. Jackson also speaks of the “Steinbok” in his account of the Antelopes of the same district. He says that its Swahili name is “Ishah,” but that it is better known to some sportsmen as the Grass-Antelope, and continues as follows:--“It is more plentiful at Kilimanjaro than elsewhere, though I have seen a good many all along the caravan-route, wherever it passes through open grass country, between Mombasa and Nzoi in Ukambani. This little Antelope is the smallest of those found in the open plains. It is a stupid little beast, and requires very little stalking to outwit it. It will often stand gazing at anyone who approaches, and allow him to walk up to within 100 yards of it.” If it should turn out that _R. neumanni_ is a good species, it is probable that that Steinbok or Ishah of British East Africa, referred to by these two distinguished sportsmen, will be found to belong to it. In his ‘Field-notes on the Antelopes of Nyasaland,’ published in 1890, Mr. R. Crawshay includes the Steinbuck. But he had only procured one specimen, and admits that he was uncertain as to its identification. As will be seen by this and by previous remarks that we have made, our knowledge of the Antelopes of East Africa is still far from complete, and there is a large opportunity for further discoveries on this subject by those who will kindly assist us with notes and specimens. The British Museum contains two skulls, probably of this species, obtained between Mombasa and Kilimanjaro by Mr. H. C. V. Hunter. _December, 1895._ GENUS IV. NESOTRAGUS.