worms, and leeches; it swims well, and remains long under water, raising the tip of the snout, where the nostrils are situated, to the surface when it wants to breathe. It is thus well concealed; and this may be one use of the development of the long snout, as well as serving to follow worms into their holes in the soft earth. This species is confined to the rivers Volga and Don in Southern Russia, and the only other species known inhabits some of the valleys on the north side of the Pyrenees. In the distance are wolves, a characteristic feature of these wastes.

Birds. But few genera of birds are absolutely restricted to this sub-region. Podoces, a curious form of starling, is the most decidedly so; Mycerobas and Pyrrhospiza are genera of finches confined to Thibet and the snowy Himalayas; Leucosticte, another genus of finches, is confined to the eastern half of the subregion and North America; Tetraogallus, a large kind of partridge, ranges west to the Caucasus; Syrrhaptes, a form of sand-grouse, and Lerwa (snow-partridge), are almost confined here, only extending into the next sub-region; as do Grandalo and Calliope, genera of warblers, Uragus, a finch allied to the North American cardinals, and Crossoptilon, a remarkable group of pheasants.

Almost all the genera of central and northern Europe are found here, and give quite a European character to the ornithology, though a considerable number of the species are different. There are a few Oriental forms, such as Abrornis and Larvivora (warblers); with Ceriornis and Ithaginis, genera of pheasants, which reach the snow-line in the Himalayas and thus just enter this sub-region, but as they do not penetrate farther north, they hardly serve to modify the exclusively Palearctic character of its ornithology.

According to Middendorf, the extreme northern Asiatic birds. are the Alpine ptarmigan (Lagopus mutus); the snow-bunting (Plectrophanes nivalis); the raven, the gyrfalcon and the snowyowl. Those which are characteristic of the barren « tundras,” but which do not range so far north as the preceding are,-the willow-grouse (Lagopus albus); the Lapland-bunting (Plectrophanes

lapponica); the shore-lark (Otocorys alpestris); the sand-martin (Cotyle riparia), and the sea-eagle (Haliæetus albicilla).

Those which are more characteristic of the northern forests, and which do not pass beyond them, are the linnet; two crossbills (Loxia Leucoptera and L. Curvirostra); the pine grosbeak (Pinicola enucleator); the waxwing; the common magpie; the common swallow; the peregrine falcon ; the rough-legged buzzard ; and three species of owls.

Fully one-half of the land-birds of Siberia are identical with those of Europe, the remainder being mostly representative species peculiar to Northern Asia, with a few stragglers and immigrants from China and Japan or the Himalayas. A much larger proportion of the wading and aquatic families are European or Arctic, these groups having always a wider range than land birds.

Reptiles and Amphibia. From the nature of the country and climate these are comparatively few, but in the more temperate districts snakes and lizards seem to be not uncommon. Halys, a genus of Crotaline snakes, and Phrynocephalus, lizards of the family Agamidæ, are characteristic of these parts. Simotes, a snake of the family Oligodontidæ, reaches an elevation of 16,000 feet in the Himalayas, and therefore enters this sub-region.

Insects.—Mesapia and Hypermnestra, genera of Papilionidæ, are butterflies peculiar to this sub-region; and Parnassius is as characteristic as it is of our European mountains. Carabida are also abundant, as will be seen by referring to the Chapter on the Distribution of Insects in the succeeding part of this work. The insects, on the whole, have a strictly European character, although a large proportion of the species are peculiar, and several new genera appear.

IV.-Japan and North China, or the Manchurian Sub-region.

This is an interesting and very productive district, corresponding in the east to the Mediterranean sub-region in the west, or rather perhaps to all western temperate Europe. Its limits are not very well defined, but it probably includes all Japan; the Corea and Manchuria to the Amour river and to the lower

slopes of the Khingan and Peling mountains; and China to the Nanlin mountains south of the Yang-tse-kiang. On the coast of China the dividing line between it and the Oriental region seems to be somewhere about Foo-chow, but as there is here no natural barrier, a great intermingling of northern and southern forms takes place.

Japan is volcanic and mountainous, with a fine climate and a most luxuriant and varied vegetation. Manchuria is hilly, with a high range of mountains on the coast, and some desert tracts in the interior, but fairly wooded in many parts. Much of northern China is a vast alluvial plain, backed by hills and mountains with belts of forest, above which are the dry and barren uplands of Mongolia. We have a tolerable knowledge of China, of Japan, and of the Amoor valley, but very little of Corea and Manchuria. The recent researches of Père David in Moupin, in east Thibet, said to be between 31° and 32° north latitude, show, that the fauna of the Oriental region here advances northward along the flanks of the Yun-ling mountains (a continuation of the Himalayas); since he found at different altitudes representatives of the Indo-Chinese, Manchurian, and Siberian faunas. On the higher slopes of the Himalayas, there must be a narrow strip from about 8,000 to 11,000 feet elevation intervening between the tropical fauna of the Indo-Chinese subregion and the almost arctic fauna of Thibet; and the animals of this zone will for the most part belong to the fauna of temperate China and Manchuria, except in the extreme west towards Cashmere, where the Mediterranean fauna will in like manner intervene. On a map of sufficiently large scale, therefore, it would be necessary to extend our present sub-region westward along the Himalayas, in a narrow strip just below the upper limits of forests. It is evident that the large number of Fringillidæ, Corvidæ, Troglodytidæ, and Parida, often of south Palearctic forms, that abound in the higher Himalayas, are somewhat out of place as members of the Oriental fauna, and are equally so in that of Thibet and Siberia; but they form a natural portion of that of North China on the one side, or of South Europe on the other.

Mammalia. This sub-region contains a number of peculiar and very interesting forms, most of which have been recently discovered by Père David in North and West China and East Thibet. The following are the peculiar genera :-Rhinopithecus, a sub-genus of monkeys, here classed under Semnopithecus; Anurosorex, Scaptochirus, Uropsilus and Scaptonyx, new forms of Talpidæ or moles; Eluropus (Æluridæ); Nyctereutes (Canidæ); Lutronectes (Mustelida); Cricetulus (Muride); Hydropotes, Moschus, and Elaphodus (Cervida). The Rhinopithecus appears to be a permanent inhabitant of the highest forests of Moupin, in a cold climate. It has a very thick fur, as has also a new species of Macacus found in the same district. North China and East Thibet seem to be very rich in Insectivora. Scaptochirus is like a mole; Uropsilus between the Japanese Urotrichus and Sorex; Scaptonyx between Urotrichus and Talpa. Eluropus seems to be the most remarkable mammal discovered by Père David. It is allied to the singular panda (Elurus fulgens) of Nepal, but is as large as a bear, the body wholly white, with the feet, ears, and tip of the tail black. It inhabits the highest forests, and is therefore a true Palæarctic animal, as most likely is the lurus. Nyctereutes, a curious racoon-like dog, ranges from Canton to North China, the Amoor and Japan, and therefore seems to come best in this sub-region; Hydropotes and Lophotragus are small hornless deer confined to North China; Elaphodus, from East Thibet, is another peculiar form of deer ; while the musk deer (Moschus) is confined to this sub-region and the last. Besides the above, the following Palearctic genera were found by Père David in this sub-region: Macacus; five genera or sub-genera of bats (Vespertilio, Vesperus, Vesperugo, Rhinolophus, and Murina); Erinaceus, Nectogale, Talpa, Crocidura and Sorex, among Insectivora; Mustela, Putorius, Martes, Lutra, Viverra, Meles, Elurus, Ursus, Felis, and Canis, among Carnivora; Hystrix, Arctomys, Myospalax, Spermophilus, Gerbillus, Dipus, Lagomys, Lepus, Sciurus, Pteromys, Arvicola, and Mus, among Rodentia; Budorcas, Nemorhedus, Antilope, Ovis, Moschus, Cervulus and Cervus among Ruminants; and the widespread Sus or wild boar. The following Oriental genera are also