464 ME. OLDFIELD THOMAS ON A NEW ANTELOPE. [May 1, 



most distinct new species, widely different from any known form, 

 and was described as follows : — 



Oephalophus walkeri Tlios.* (Plate XXXY.) 



Abstr. P.Z. S. No. 31, p. 1, May 8, 1906. 

 Size medium, about as in C. leticogaster. General ground- 

 colour of body dark greyish brown (between sepia and Prout's 

 brow^n), the hairs finely speckled with pale buffy ; but along the 

 back, over an area about six inches wide, the speckling died out, 

 and the colour darkened to nearly black, the hairs here being 

 " hair-brown " at their bases and dark blackish brown at their tips. 

 Under surface and innei- side of limbs little lighter than sides, 

 about " hair- brown." Top of muzzle brownish black ; forehead to 

 between ears, including the frontal tuft, deep glossy black. 

 Cheeks and chin pale fawn, a narrow edging to the black above 

 the eyes stronger buffy. Ears large, their backs grizzled brown 

 or blackish, their bases and the fringe along then- anterior edges 

 fawn. Nape with a narrow median black line connecting the 

 frontal and dorsal areas of black, edged on each side first with a 

 lighter and then with a rather darker longitudinal band. Limbs 

 wholly dark, before and behind, the digits nearly black. Tail 

 imperfect in the type, its base dark above, dull whitish below. 



Length of fore foot, from "knee" to tip of hoof, 180 mm., this 

 being about the same length as in G. leucogaster and other middle- 

 sized species. No other exact measurement w^as obtainable, but 

 the prepared skin was 33 inches from nose to base of tail. 



Hah. Tuchila River, about 25 miles from Blantyre, Nyasa. 



Type. Adult female; skin without skull. B.M. No. 6.4.21.1. 

 Shot in September 1905, and presented by Mr. Samuel "W. Frank. 



This interesting Duiker differed so widely from any known 

 species that Mr. Thomas found it difficult to say to what group of 

 the genus it should be assigned. Perhaps it would prove to have 

 an affinity with C. niger, but in any case no definite opinion 

 could be expressed until male specimens, with skulls and horns, 

 had been obtained. 



in some respects Herr Neumann's description of C. leuco- 

 prosopus t applied to C. vxdkeri, but the statements that in the 

 former " Bauch, Lmenseite der Beine und Kehle sind weiss " and 

 " die Stirn ist roth " conclusively proved that it could not be of the 

 same species. 



By Mr. Frank's wish the species had been named after 

 Mr. E. G. Walker, of Ndirandi, Blantyre, who had actually shot 

 the specimen, though Mr. Fi-ank had been the first to see it. 



The following papers were read : — 



* [The complete account of the new species described in this communication 

 appears here; but since the name and preliminary diagnosis were published in the 

 ' Abstract,' the species is distino:uished bj' the name being underlined. — Editok.^ 



t SB. Ges. nat. Pr. Berl. 1899, p. 18. 



