8 Kl NAR LÖNNBERG, ANATOMICAL NOTES ON EAST AFRTCAN MAMMALS. 



A foetus of Kongoni or Coke\s Hartebeest (Bubalis cokei) had 16 pairs of partly 

 alternating pålat al folds which were feebly crenulated, and behind them faint traces 

 of two more were Been. The number of folds is fchos smaller than in the Gnu, 1 but 

 greater than in the common Ox. 



On the anterior half of the tongue small papilla- fungiformes are scattered among 

 fche small scale-like papillce filiformes. On the posterior portion of the tongue the 

 papillce fungiformes are larger, but only found laterally among the conical papittce 

 filiformes, not in the central portion where the latter form broad warts. On either 

 aide of the base of fche tongue fchere is an irregular partly double row of about 8— 9 

 papilla vallatce. This number is quite small compared with that of the common Ox 

 but almost similar to that of the Gnu, 2 and several other Antelopes as mentioned 

 in this paper. 



Cephalophus harveyi keniae 



possessed about 14 palatal folds which were feebly crenulated. The hindmost was 

 situated on a level with the second premolar. 



The papillce vallatce of the tongue were arranged in two irregular rows on either 

 side. Their number was 10 to 12 on either side, and they did not differ much from 

 fche nearest large papillce fungiformes. 



The lobus caudatus of the liver was three-sided, and lobus Spigelii rounded. 



The gall-bladder was absent. Garrod stated already 1877 the absence of fche 

 gall-bladder in two small members of this genus vi/.. Cephalophus maxweUi and C. 

 pygmceus (= monticola). In the year 1903 the present author had the opportunity 

 of making a similar statement about C. mélanorhceus and C. ogilbyi, and 1909 C. 

 natalensis was added. Now this species, and the following, viz. C. äbyssinicus hindei 

 have been found to present the same characteristic, and it is thus probable that all 

 members of this genus in its broadest sense 3 (or at least all the small and medium- 

 Bized species) are without gall-bladder. This is a rafcher remarkable fäet, the more 

 so as a well developed gall-bladder is present in other small Antelopes as Xcotraijus, 

 Rhaphict rus etc. 



The colic spiral of this Red Korest Duiker is rather simple, and all the coils 

 lie in fche same plane. Two coils run in a cent ripetal direefcion, and one and a half 

 in a centrifugal direefcion. This condition is found to be more simple than in fche 

 foetus which has half a coil more in each direefcion. These facts prove a simplifica- 

 tion of fche colic spiral of this species during the ontogenetic development, which 

 indicates ihat a change in fche diet has taken place, and that fche ancesfcora of this 

 animal Bubsisfced on coarser and less easily digest ed food. A similar condition, viz. 

 Ihat the foetus has a more complicaled colic spiral (han the adult, has been stated 



h\ the present author^ in Cephalophus mélanorhceus. 



1 I K. Vet. Akad. HandJ. Bd 36. tf:o 3, p. 46. 

 " l c p. 50. 



Tim <. < ei Cephalophus and tiylricapra according to some aathora, 



1 Nov. \- 1 Ri Soi 3( i ppsalo 1903, p. 27. 



