160 EINAR LÖNNBERG, MAMMALS COLLECTED BY THE SWEDISH ZOOLOGICAL EXPEDITION ETC. 
| a b Ice var.!| ad 
| Sn 5 | (Ol young 
| mm. | mm. | mm. | mm. 
Totaldlengrhi a, OM FI IMSE SER NERO 108,5 | 105,5 | 98;5 | 100 
|. Condylobasal lengtbnsria scr, Hd sRT EES | 102 98 92 95 
Basicrania lr ME ME Tr ren OA MESSI ESS ESS 
|A rot Ste o UN fa RORDEDE SoA di al oo i BA 50 50 47 
Posterior brim of orbit te gnathion . . . . . . « Så as G dd 72) 72,5 
| » »y EN amtertor alveolar edgersrsr sees Sr 53 51,8 | 50,51 Sl,5 
I Hongblr Of Masals se to ff td PRRESEet ste als ber 1) SSR SARS JEEP | 21551) s23 15;8U0L9S 
I Pipdoffnasalsi tojgnatbronfiste ft. CMS | 30 30 30,5 |--30 
| Length of upper molar series « .« sk ss er rr sr rs or rf RID 34 33 — 
Breadth across posterior orbital walls . . . » = «+ « Sö or so AD d1,5 | 49 47,5 
| Distance between outer sides of horn cores basally . . .— . .| 42 40 SÖ, 
| Combined 'breadth. of-nasals! 4. Bler.sts ts AT SEEN KR 16 | 15 15 
The cranial measurements of this race are recorded in the accompanying table 
of measurements. As can be seen from the same, one of the skulls measured (ter- 
med »c s>» in the table) is very much smaller than the two typical males (a, b), in 
spite of the fact that it is fully adult. The skull c looks also very different when 
compared with the others especially because the distance between the horns is smaller 
and the nasals shorter. I am, however, inclined to regard it as an individual aber- 
ration, a dwarf, because the skin is quite like the other male skins except that the 
tuft is smaller and the black tips to the hairs of its posterior portion a little more 
conspicuous than in the typical males. But it is not excluded that it represents a 
smaller but related race as it was found at another locality, although not much 
distant. 
This small buck was shot at Njoro a watering place belonging to the Rendiles 
about 2 days march north of Guaso Nyiri (””/2 1911). In the same neighbourhood a 
female Dikdik was also shot, but this was unfortunately so young that its dimensions 
are of little value. 
These Dikdiks were common in the thornbush country north of Guaso Nyiri below 
Chanler Falls. In habits they resembled the other species. A few times I heard 
them produce a kind of whistling sound like »i i>, and a snort when they were started. 
Kobus ellipsiprymnus canescens n. subsp. ; 
The specimen on which OGiLBY based the specific name ellipsiprymnus was 
brought from South Africa, although the exact locality hardly is known with cer- 
tainty.” Al Waterbucks with a white line across the rump have afterwards been 
! The milk-molars still remain, and m? is cutting the gum. 
? Conf. W. L. ScLATER: Mammals of South Africa. Vol. I, p. 187—188. 
