Of minor interest is a paper by the then Hunterian Professor in the _Quarterly Journal_ of the Geological Society on a much rolled and battered skull from the so-called Red Crag of Suffolk, which the author referred to a species of that extinct genus of sea-cows (Sirenia) known as _Halitherium_. Such interest as the specimen possessed was due to its affording the first evidence of the occurrence of remains of that genus in Britain. Another paper, it may be mentioned, was published by Flower in the same journal for 1877, in which another well-known extinct continental genus of mammals was added to the fauna of the Red Crag of East Anglia. The paper described two molar teeth, in the York Museum, from the deposit in question, evidently referable to the large bear-like animal known as _Hyænarctus_, of which the first remains had been described many years previously from the Siwalik Hills of North-Eastern India. As the mention of this paper has broken the chronological order of treatment, it may be added that in 1876 Flower published another paper, this time in the Zoological Society’s _Proceedings_, on a mammalian skull from the Red Crag. The specimen referred to in this communication was provisionally assigned to Cuvier’s genus _Xiphodon_, and was believed to have been originally washed out from a formation much older than the Red Crag, and reburied in the latter. Next on our list comes a paper on the anatomy of the musk-deer (_Moschus moschiferus_), contributed to the serial last cited for 1875, in which the author points out how widely this animal differs from the more typical deer, and shows that it cannot even claim a near relationship with the Chinese water-deer, despite the fact that in both species the males are devoid of antlers, and are armed with long sabre-like tusks in the upper jaw. In several respects—notably the presence of a gall-bladder to the liver—the musk-deer is indeed nearer to the hollow-horned ruminants (Bovidæ), than to the other members of the deer tribe (Cervidæ).