158 EINAR LÖNNBERG, MAMMALS COLLECTED BY THE SWEDISH ZOOLOGICAL EXPEDITION ETC. 
FN FR re RC pa 
mm. I mm. mm. mm. mm. | 
Totallsngih 40: AA) s.å Nu AREUENN DS A | 108 | 107 | 115 10 110,5 | 
Conrdylöbasal length lat SEC CKERSEEerERE STR EE 101 | 100,5 | 109,5 | 104 103 | 
Basicranial » « arta fis GfK KNSTEREAOCE 94 | 94 102-597 ar96 
VANESSA RR RN OR DL ag 54.5. |. 545. 15d su ks RS 
Posterior brim of orbithitor gnathion C:s SOT AS | 84 81 81 
» » oo» » » anterior alveolar edge. . . . « . | 54 | 54 | 57 50 57 
En gth Of MASS eo Mo Ge Sofo ne EE er FTSE ERROR EE | HÖ | 10 10,3 
Häpröfinasals tolgnabbion f.d. er Es ERE SEE 45 | = | 0 48,5 | 43,5 | 
Iengthöofi upperimolariserieski. så bis di. di. sd 37 | 34,5 | 38 37 35,51 
Lengthikof. horn. AA smed. stred ella os ferdass ANENSNER GzaE 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 '”/2 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. MNSometimes they stop soon and look round.» 
Rhynochotragus cavendishi minor LÖNNBERG. 6 
LÖNNBERG: Aun. & 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 GÖNTHER, 
Rh. k. hindei THOMAS, 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 
! Sitz.-ber. d. Naturf. Freunde, Berlin 1905, p. 89. 
