single outlying species of Macroscelides inhabits Barbary and Algeria; while the two genera Petrodromus, and Rhyncocyon, each represented by a single species, have only been found at Mozambique. FAMILY 16.-TUPAIIDE. (3 Genera, 10 species.) The Tupaiidæ are squirrel-like shrews, having bushy tails, and often climbing up trees, but also feeding on the ground and among low bushes. The typical Tupaia (7 species), are called ground squirrels by the Malays. They are most abundant in the Malay islands and Indo-Chinese countries, but one species is found in the Khasia Mountains, and one in the Eastern Ghauts near Madras. The small shorter-tailed Hylomys (2 species) is found from Tenasserim to Java and Borneo; while the elegant little Ptilocerus (1 species) with its long pencilled tail, is confined to Borneo; (Plate VIII. vol. i. p. 337). The family is therefore especially Malayan, with outlying species in northern and continental India. Extinct Species.-Oxygomphus, found in the Tertiary deposits of Germany, is believed to belong to this family; as is Omomys, from the Pliocene of the United States. FAMILY 17.-ERINACEIDÆ. (2 Genera, 15 Species.) The Hedgehogs, comprised in the genus Erinaceus (14 species), are widely distributed over the Palearctic, and a part of the Oriental regions; but they only occur in the Ethiopian region in South Africa and in the Deserts of the north, which more properly belong to the Palearctic region. They are absent from the Malayan, and also from the Indo-Chinese sub-regions; except that they extend from the north of China to Amoy and Formosa, and into the temperate highlands of the Western Himalayas. The curious Gymnura (1 species) is found in Borneo, Sumatra, and the Malay peninsula. Extinct Species.-The common hedgehog has been found fossil in several Post-tertiary deposits, while extinct species occur in the lower Miocene of Auvergne and in some other parts of Europe. Many of these remains are classed in different genera from the living species;-(Amphechinus, Tetracus, Galerix.) FAMILY 18.-CENTETIDA. (6 Genera, 10 Species.) GENERAL DISTRIBUTION. NEOTROPICAL NEARCTIC PALEARCTIC ETHIOPIAN ORIENTAL AUSTRALIAN SUB-REGIONS. SUB-REGIONS. SUB-REGIONS. SUB-REGIONS. SUB-REGIONS. SUB-REGIONS. The Centetida are small animals, many of them having a spiny covering, whence the species of Centetes have been called Madagascar hedgehogs. The genera Centetes' (2 species), Hemicentetes (1 species), Ericulus (1 species), Echinops (3 species), and the recently described Oryzorictes (1 species), are all exclusively inhabitants of Madagascar, and are almost or quite tail-less. The remaining genus, Solenodon, is a more slender and active animal, with a long, rat-like tail, shrew-like head, and coarse fur; and the two known species are among the very few indigenous mammals of the West Indian islands, one being found in Cuba (Plate XVII., vol. ii., p. 67), the other in Hayti. Although presenting many points of difference in detail, the essential characters of this curious animal are, according to Professors Peters and Mivart, identical with the rest of the Centetidæ. We have thus a most remarkable and well-established case of discontinuous distribution, two portions of the same family being now separated from each other by an extensive continent, as well as by a deep ocean. Extinct Species.-Remains found in the Lower Miocene of the South of France are believed to belong to the genus Echinops, or one closely allied to it. FAMILY 19.-POTAMOGALIDE. (1 Genus, 1 Species,) GENERAL DISTRIBUTION. NEOTROPICAL NEARCTIC PALEARCTIC ETHIOPIAN ORIENTAL AUSTRALIAN SUB-REGIONS. SUB-REGIONS. SUB-REGIONS. SUB-REGIONS. SUB-REGIONS. SUB-REGIONS. The genus Potamogale was founded on a curious, small, otterlike animal from West Africa, first found by M. Du Chaillu at the Gaboon, and afterwards by the Portuguese at Angola. Its affinities are with several groups of Insectivora, but it is sufficiently peculiar to require the establishment of a distinct family for its reception. (Plate V., vol. i., p. 264.) FAMILY 20.-CHRYSOCHLORIDÆ. (2 Genera, 3 Species.) GENERAL DISTRIBUTION. ORIENTAL AUSTRALIAN NEOTROPICAL NEARCTIC PALEARCTIC ETHIOPIAN The Chrysochloridæ, or golden moles, of the Cape of Good Hope have been separated by Professor Mivart into two genera, Chrysochloris and Chalcochloris. They are remarkable mole-like animals, having beautiful silky fur, with a metallic lustre and changeable golden tints. They are peculiar to the Cape district, but one species extends as far north as the Mozambique territory. Their dentition is altogether peculiar, so as to completely separate them from the true moles. 22 FAMILY 21.-TALPIDE. (8 Genera, 19 Species., The Moles comprise many extraordinary forms of small mammalia especially characteristic of the temperate regions of the northern hemisphere, only sending out a few species of Talpa along the Himalayas as far as Assam, and even to Tenasserim, if there is no mistake about this locality; while one species is found in Formosa, the northern part of which is almost as much Palearctic as Oriental. The genus Talpa (7 species), spreads over the whole Palæarctic region from Great Britain to Japan; Scaptochirus (1 species) is a recent discovery in North China; Condylura (1 species), the star-nosed mole, inhabits Eastern North America from Nova Scotia to Pennsylvania; Scapanus (2 species) ranges across from New York to St. Francisco; Scalops (3 species), the shrew-moles, range from Mexico to the great lakes on the east side of America, but on the west only to the north of Oregon. An allied genus, Myogale (2 species), has a curious discontinuous distribution in Europe, one species being found in South-East Russia, the other in the Pyrenees (Plate II., vol. i., p. 218). Another allied genus, Nectogale (1 species), has recently been described by Professor Milne-Edwards from Thibet. Urotrichus is a shrew-like mole which inhabits Japan, and a second species has been discovered in the mountains of British Columbia; an allied form, Uropsilus, inhabits East Thibet. Anurosorex1 and Scaptonyx, are new genera from North China. Extinct Species.-The common mole has been found fossil in bone-caves and diluvial deposits, and several extinct species of mole-like animals occur in the Miocene deposits of the South of France and of Germany. These have been described under the generic names Dimylus, Geotrypus, Hyporissus, Galeospalax; while Palæospalax has been found in the Pliocene forest-beds of Norfolk and Ostend. Species of Myogale also occur from the Miocene downwards. FAMILY 22.-SORICIDÆ. (1 Genus, 11 Sub-genera, 65 Species.) GENERAL DISTRIBUTION. ORIENTAL AUSTRALIAN NEOTROPICAL NEARCTIC PALEARCTIC ETHIOPIAN The Shrews have a wide distribution, being found throughout every region except the Australian and Neotropical; although, as a species is found in Timor and in some of the Moluccas, they just enter this part of the former region, while one found in Guatemala brings them into the latter. A number of species have recently been described from India and the Malay Islands, so that the Oriental region is now the richest in shrews, having 28 species; the Nearctic comes next with 24; while the Ethiopian has 11, and the Palearctic 10 species. The sub-genera are Crossopus, Amphisorex, Neosorex, Crocidura, Diplomesodon, Pinulia, Pachyura, Blarina, Feroculus, Anausorex." 1 Extinct Species.-Several species of Sorex have been found fossil in the Miocene of the South of France, as well as the extinct genera Mysarachne and Plesiosorex; and some existing species have occurred in Bone Caves and Diluvial deposits.2 General Remarks on the Distribution of the Insectivora. The most prominent features in the distribution of the Insectivora are, their complete absence from South America and Australia; the presence of Solenodon in two of the West Indian islands while the five allied genera are found only in Madagascar ; and the absence of hedgehogs from North America. If we consider that there are only 135 known species of the order, 65 of which belong to the one genus Sorex; while the remaining 26 genera contain only 70'species, which have to be classed in 8 distinct families, and present such divergent and highly specialized forms as Galeopithecus, Erinaceus, Solenodon, and Condylura, it becomes evident that we have here the detached fragments of a much more 190. 2 ta 1 |