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Show 328 ON THE DWARF ANTELOPES OP THE GENUS MADOQUA. [Apr. 3, Dimensions of the type, an adult male in spirit:-Head and body 470 mm., hind foot to base of hoof 159, ear from notch 59. For skull-measurements see table, p. 326. Hab. Northern half of Somaliland. This, the ordinary " Dik-Dik " of Northern Somaliland, seems to be very common throughout its range. Capt. Swayne tells m e that during every day's march they are constantly being put up and shot, exactly like the common European hare, the habits of which they closely imitate. Although undoubtedly very closely allied to the Abyssinian species, its differences, both in size and colour, appear to be so marked and so constant that I no longer feel justified in assigning it to that form. The name of M. saltiana should therefore be entirely struck out of the list of the Somali fauna. Lastly we have to deal with a species which, found, like M. phiilipsi, near Berbera, is there well-known as distinct both to sportsmen and natives, and has a different local name. I propose to name it after the enthusiastic naturalist and sportsman who first drew m y attention to its distinctness, and whose notes on it have been already published in the ' Proceedings.' MADOQUA SWATNEI, sp. n. Colour approximately as in M. saltiana; size less than in M. phiilipsi, and therefore far less than in M. saltiana. Colour of back grey with a strong fulvous suffusion (" isabella " of Bidgway seems the nearest, but is not yellowish enough). Limbs rufous, and sides faintly so, but very different from the strong well-defined rufous of M. phiilipsi. Of this species the Museum has three skins, brought home by Capt. Swayne from Berbera, and of these No. 94.2.21.15 is selected as the type. The measurements are as follows :-Head and body (c.) 500 mm., hind foot without hoofs 149, length of h^of 22. Besides the skins, one skull of Capt. Swayne's (94.2.21.20) and another one (85.11.16.3), collected at Gerbatir, N . Somali, by Herr Menges, are referred provisionally to this species, and the measurements of the former given in the table on p. 326. Capt. Swayne tells m e that the native name of M. swaynei is " Guyu," of M. phiilipsi " Gol-ass," and of M. guentheri " Gussuli." The following rough synopsis of the species of Madoqua will help to summarize the results arrived a t :- A. Last lower molar without a third lobe ; upper line of premaxillae slanting, scarcely curved. Proboscis less developed. a. Back yellowish or fulvous grey, sides scarcely more rufous. a1. Size larger, basal length of skull 95 m m . Abyssinia. 1. M. saltiana, Blainv. b2. Size smaller, basal length of skull about 78 m m . N. Somali. 2. M. swaynei, Thos. |