AMONG the many most valuable additions which Mr. R. Swinhoe has made to our knowledge of Chinese zoology, there are none more important than his discoveries in the deer-tribe. The Water Deer of Shanghai (Hydropoies inertnis), first described in 1870, is one of the most interesting of these. It is of small size, without horns of any kind, and with long canine teeth present in the males only. In outward appearance it in these respects closely resembles the Musk Deer. Its colour is light chestnut, and the hairy coat is harsh. It is called the Ke and the Chang by the Chinese. Sir Victor Brooke has demonstrated that its skull differs in important points from that of Moschus.