158 EINAR LONNBERG, MAMMALS COLLECTED BY THE SWEDISH ZOOLOGICAL EXPEDITION ETC. 
| 
4 of | Tye 132 el | <) 
| | 
| mm. ea | mm. | mm. | mm 
Motel Temgtht =) 0 ot cle? cece) See on ee ead te een rere ron 108 | 107 | 115 lll | 110,5 | 
Condylobadal length iV. :Ga~ 7S ae hae eee Penh 101 100,5 | 109,5 104 103 
Basicranial D1) iy ae yet be chee ofa) EAS oc ee eee 94 | 94 102,5| 97 96 
AY SOMBGICWIGGH 2 Glieves ep cies ch ismisiece cunt Een em ons aces MGS 54,5| 545| 54 | 53 55,5 
Posterior brim of orbith to gnathion . . . Me oe oe teen 80 79 84 81 81 
» D » amterior alveolar edge. ... . ~ 54 54 57 55 57 
Tekcth of inasala 43/2 ee ee, eee 3 Mh Was (: 
|| Tipyor nasalsitotpnatbion: gee e- ees 0s) eee oe le te 45 — 50 48.5| 43,5 
Length ‘of upper molariseries 5.92 5. 260.) 2 te eG Se 37 34,5) 38 | 37 | 35,5 
Lengthyof horn. .<.ie - sxtgatinn ts. 1) a= Ea vin) be eka) AP a ee | u6i 65 — — | — 
This grey Dik-dik was rather common in the thornbush in the localities men- 
tioned especially on rocky hill-sides. It occurred as other species in pairs. When I 
had shot the first pair of this kind '*: 1911 one days march to the east of the 
Marsabit road I wrote in my diary: »The two Dikdiks shot to day have a soft and 
long, rather tapire-like nose (Conf. Pl. XIV fig. 1), just as the nasoguttatus mounted 
in the museum in Stockholm. They look rather long-legged when they do not run 
fast. When first started the make some stiff jumps (like several other antelopes) 
before they begin to run. Sometimes they stop soon and look round.» 
Rhynochotragus cavendishi minor LONNBERG. 
LénnperG: Ann. & Mag. Nat. Hist. Ser. 8, Vol. IX, p. 65. 
When the Expedition had passed eastwards to below Chanler Falls another 
Dik-dik was met with. This one was more yellowish in colour, and its nasals were 
not so short as in the grey species seen a few days before. It belonged evidently 
to the Rhynchotragus kirki group. To this group can be counted Rh. kirki GinrHER, 
Rh. k. hindei Tuomas, Rh. cavendishi THomas, Rh. thomasi NEUMANN, and Rh. dama- 
rensis GUNTHER. For geographical reasons as well as for differences wih regard to 
the skull the last mentioned species does not need to be compared with the present 
specimens. When describing Rh. thomasi NEUMANN has, as usual, not cared to give 
any skull measurements but only described the colour of the animal.’ As this is 
said to be »rotgelb» it cannot be regarded to resemble my specimens at all. Rh. 
cavendishi THOMAS is a large species with the basicranial length in the male type- 
specimen 104 mm. thus very much more than in the present specimens (conf. table 
of measurements), and other dimensions differ in similar proportions. In some respects, 
however, my specimens resemble Rh. cavendishi viz. in the development of the pre- 
maxillaries which are said to reach the nasals, »articulating broadly» with them, and 
1 Sitz.-ber. d. Naturf. Freunde, Berlin 1905, p. 89. 
