_Fauna._--In respect of its fauna Java differs from Borneo, Sumatra and the Malay Peninsula far more than these differ among themselves; and, at the same time, it shows a close resemblance to the Malay Peninsula, on the one hand, and to the Himalayas on the other. Of the 176 mammals of the whole Indo-Malayan region the greater number occur in Java. Of these 41 are found on the continent of Asia, 8 are common to Java and Borneo, and 6 are common to Java and Sumatra (see M. Weber, _Das Indo-Malay Archipelago und die Geschichte seiner Thierwelt_, Jena, 1902). No genus and only a few species are confined to the island. Of the land-birds only a small proportion are peculiar. The elephant, the tapir, the bear, and various other genera found in the rest of the region are altogether absent. The Javanese rhinoceros (_Rhinoceros sundaicus_; _sarak_ in Javanese, _badak_ in Sundanese), the largest of the mammals on the island, differs from that of Sumatra in having one horn instead of two. It ranges over the highest mountains, and its regular paths, worn into deep channels, may be traced up the steepest slopes and round the rims of even active volcanoes. Two species of wild swine, _Sus vittatus_ and _Sus verrucosus_, are exceedingly abundant, the former in the hot, the latter in the temperate, region; and their depredations are the cause of much loss to the natives, who, however, being Mahommedans, to whom pork is abhorrent, do not hunt them for the sake of their flesh. Not much less than the rhinoceros is the banteng (_Bibos banteng_ or _sundaicus_) found in all the uninhabited districts between 2000 and 7000 ft. of elevation. The kidang or muntjak (_Cervulus muntjac_) and the rusa or russa (_Rusa hippelaphus_ or _Russa russa_) are the representatives of the deer kind. The former is a delicate little creature occurring singly or in pairs both in the mountains and in the coast districts; the latter lives in herds of fifty to a hundred in the grassy opens, giving excellent sport to the native hunters. Another species (_Russa kuhlii_) exists in Bavian. The kantjil (_Tragulus javanicus_) is a small creature allied to the musk-deer but forming a genus by itself. It lives in the high woods, for the most part singly, seldom in pairs. It is one of the most peculiar of the Javanese mammals. The royal tiger, the same species as that of India, is still common enough to make a tiger-hunt a characteristic Javanese scene. The leopard (_Felis pardus_) is frequent in the warm regions and often ascends to considerable altitudes. Black specimens occasionally occur, but the spots are visible on inspection; and the fact that in the Amsterdam zoological gardens a black leopard had one of its cubs black and the other normally spotted shows that this is only a case of melanism. In the tree-tops the birds find a dangerous enemy in the matjan rembak, or wild cat (_Felis minuta_), about the