1892.] MR. O. THOMAS ON MAMMALS FROM NYASSALAND. 553 



21. AuLACODUS swiNDERENiANUS, Temm. 

 a. Ad. sk. Milaiiji Plain, 4000 ft. 29/10/91. 



22. Procavia capensis, Pall. 



a. Imra. sk. Milanji Plain, 4000 ft.. 27/10/91. 



The present is by far the most northern locality hitherto recorded 

 for thi^ species, as, so far as I know, it has not previously been 

 described as occurring north of Natal. Tne specirnen is unforta- 

 nately voune, and therefore the determination is to some extent 

 doubtfill ; but at the same time the rudiments of the dorsal spot, just 

 appearing, are black, and the teeth are decidedly of the hypsodont 

 naCe characteristic of P. capensis and its allies. Adult specimens 

 of this Nyassa Hyrax ^vould be o£ value m order to prove wbether 

 there is or is not any geographical difference between it and its 

 Cape ally. 



23. BuBALis LiCHTENSTEiifi, Peters. 



a. Ad. sk. and skull. Zomba. 18/1/92. 



24. Oreotragus saltator, Bodd. 



a. Imm. sk- S • Zomba Plateau, 5000 t't. 1/2/92. 

 A remarkably brilliant yellow-coloured specimen. 



25. iEPYCEROS MELAMPUS JOHNSTONI, subsp. n. 



«. Ad. sk. and skull, c?. Zomba. 15/1/92. Ty^^e of subspecies. 

 6. Ad. sk. and skull, c? . Zomba. 17/1/92. 

 A local race of the common Pallah distinguished by its slenderer 

 skull and much shorter horns. , , , „ , , , ^ 



Height iudgino- from the length of the skull, probably nearly 



equal to that of the typical Pallah, but the build, judging from the 



form of the same part, probably much lighter and more s ender. ^ 



Colours apparently precisely as in typical South African ^. 



melampus ; no darker markings on face. , , „ 



Horns conspicuously shorter than m the typical race, but other- 

 wise very similar to them^ in structure and curvature, and with about 

 the same number and arrangement of the rings. The amount of 

 the differences in size is brought out in the comparative table of 

 measurements (see p. 554); from it will be seen that the extreme 

 lenoth of the horn in M m.johnstoni is barely more than once and 

 a half the basal length of the skull (157 to 100), while m ^. rn. 

 Ujpicus the same dimension is considerably more than twice the 

 skulllength(219 to 100). • .t, . • w v. 



Skull of about the same length as in the typical form, but 

 decidedly narrowcY (see table), especially in the frontal region, and 

 with the part just in front of the orbits more compressed at the 

 sides so that the transverse diameter at this pomt is decidedly 

 less than on the muzzle above the molars, the two diameters being 

 approximately equal in the ordinary race. Palate narrow. 



