last being represented by only three species in this Province, the last outposts of the rich Cape Province and Transvaal fauna-and by three South African species of Cormocephalus: C. oligoporus, C. anceps, C. brevicornis.

The Province has two endemic genera, Bicoxidens, Synophryostreptus. Together with the eight genera enumerated above we have ten South African genera. The genus Aulodesmus almost belongs to the endemic genera, because only one species, A. mossambicus, is found in both North and South Mozambique; all the other species inhabit South Mozambique and Matabeleland. The widespread genera Scolopendra, Cryptops, Cormocephalus, Ethmostigmus, Rhysida, and Lamnonyx are not of interest in the present connection.

Of the total of 55 species, 30 are endemic: Cryptops rhodesianus, Sphaerotherium kitharistes, Sphaerotherium millepunctatum, Podochresimus alatus, Gnomeskelus spinifer, Gnomeskelus dentipes, Phaeodesmus rhodesianus, Aulodesmus laticollis, Aulodesmus peringueyi, Aulodesmus oxygonus, Chersastus splendidus, Chersastus vulparius, Gymnostreptus pontifex, Bicoxidesmus nigerrimus, Bicoxidesmus flavicollis, Synophryostreptus punctatus, Lophostreptus cameranii, Lophostreptus carli, Calostreptus carinatus, Triaenostreptus petersi, Triaenostreptus conatus, Plagiotaphrus longius, Poratophilus junodi, Poratophilus brevilobatus, Odontopyge dolabrata, Odontopyge bullata, Haplothysanus modestus, Ardiophyllum matabelinum, Chaleponcus masiniensis, Spinotarsus robustus.

Two species, Aulodesmus mossambicus and Doratagonus flavifilis, occur in North and South Mozambique, not elsewhere. The Ethiopian and South African species are enumerated above. Three species are widely spread: Scolopendra morsitans, Asanada brevicornis, Mecistocephalus insularis.

Poratophilus brevilobatus n. sp. described here, labelled "Mozambique," is perhaps also South African; the remaining species of Poratophilus all inhabit South Africa, and brevilobatus alone extends beyond the Zambesi River.

Sphaerotherium apicale and Sphaerotherium boerium are recorded from Lourenço Marques, but as the south-eastern part of South Mozambique is better included in the Transvaal, these species do not figure in the list of the present Province. Two species of Sphaerotherium, S. kitharistes from Macequec and S. giganteum from Mozambique (and Cape Province, etc.), enter the Matabele-Mozambique Province.

Our knowledge, relative especially to Portuguese South Africa, has been considerably augmented by some expeditions in recent years,

and I give here the full list of the species known from South

SUMMARY OF THE PRINCIPAL FAUNISTIC FEATURES.

1. The limits of South Africa are the Kunene and Zambesi Rivers. In the west these limits are possibly well defined; in the east, Mozambique (and Matabeleland) is a territory of transition to the East African Region.

2. South Africa is provisionally divided into four Provinces, but these Provinces show no great differences in fauna. The distribution of most species is very imperfectly known, and we must await further exploration in order to define provinces based on complete data of the distribution of all species.

3. Endemics are very numerous; almost 90 per cent. of the species and more than 42 per cent. of the genera are endemic.

4. The groups typical of the Ethiopian Region and found only in that region are largely represented in South Africa.

5. South Africa, South America, and Australia-New Zealand have a number of species in common that are to be found nowhere else. To explain this distribution we need not recur to the theory of continental bridges a Brasilo-African continent; the dispersal took place on the curve South Africa-India, with a branching off on one side over the Sunda Archipelago to Australia, on the other side by

Eastern Asia to America. Later on the genera died out again on a large part of this curve.

6. The Sphaerotheridae and Harpagophoridae are common to South Africa, Madagascar, and India. Their dispersal is doubtless due to the former Indo-Madagascar land-bridge. The Sphaerotheridae arose probably in Asia, the Harpagophoridae in Africa.

2

7. The number of imported species is relatively considerable nearly per cent. of the total.

PART II-SYSTEMATIC DIVISION.

LIST OF THE SOUTH AFRICAN SPECIES AND THEIR DISTRIBUTION.

Remarks on the List.

In Column 1 the new species are marked by the sign +. Column 2 shows the categories of the species from the zoogeographical point of view in the same manner as on p. 7. E stands for endemic in South Africa; E/1 for endemic in one Province only ; E/2 for endemic in two or more Provinces of South Africa; A for occurrence in Africa (South Africa and other parts of Africa); S for occurrence in Africa and also in Australia and New Zealand; W for wide distribution in other regions; I for introduction.

In Column 3 the species recorded for South Africa previous to the present paper are marked by a + (116 species).

Column 4 shows what species are contained in the collection of the South African Museum.

An

Columns 5-9 give the distribution; Columns 5-8 for the Provinces of South Africa, Column 9 for regions outside South Africa. asterisk in Columns 5-8 denotes that the species was recorded for this Province before (e.g. Cormocephalus anceps was recorded before from the Cape Province and Transvaal; here it is recorded also from Damaraland and Matabeleland).

Columns 10-12 indicate where the descriptions are to be found; the numbers of Column 10 are the same as in the short list of literature on p. 30.

Column 12 forms an index to the systematic part of this paper. Certain species cannot be ascribed to a precise Province, because the specimens are merely labelled "South Africa." These species are Scaphiostreptus diphialephorus, Urotropis micropora, Kartinikus australis, Poratophilus australis, Chaleponcus niger, Solenozophyllum anoncopygum.