660 SCIENCE PROGRESS 



been contributed by Mr. La Baume to Schrift. Nat. Ges. Danzig, 

 vol. xii. pp. 45 et seq. 



Reference to Messrs. Matthew and Cook's identification of 

 remains apparently indicating the occurrence of a hippotragine 

 antelope in the Pliocene of Nebraska has been already made. 

 This discovery has been supplemented by the still more 

 remarkable one of remains of tragelaphine antelopes, apparently 

 allied to the African bushbucks and kudus, in the Pliocene of 

 Nevada, which have been described by Dr. J. C. Merriam in 

 the Bulletin of the Department of Geology of the Publications of 

 California University, vol. v. pp. 319-30, under the generic 

 names of Ilingoceros and Sphenophalos. 



With the exception of the aberrant Indian nilgai, the 

 tragelaphine antelopes are now restricted to Africa, and the 

 typical hippotragines are wholly confined to that continent, 

 although their relatives the oryxes range into Syria and 

 Arabia. Both groups occurred, however, in Southern Europe 

 and Asia during the Lower Pliocene period and the new and 

 unexpected discovery seems to indicate that at the same time 

 they ranged over Central and North-Eastern Asia, whence they 

 effected an entrance by way of Bering Strait into America. 

 All this lends further support to the view that the modern 

 antelopes of Africa are comparatively recent immigrants into 

 that continent. 



As regards fossil Cervidce, the only paper of any importance 

 appears to be one by Mr. Rudolf Hermann on the extinct 

 relatives of the roebuck and their antlers, published in Schrift. 

 Nat. Ges. Danzig, vol. xii. pp. 81 et seq. 



To vol. xxvi. of the Bulletin of the American Museum 

 (pp. 1-7) Dr. W. D. Matthew contributes a short paper on the 

 widely distributed Lower Tertiary selenodont genus Ancodon, 

 or Ancodus, as it is commonly termed. Tapinodon, Arreto- 

 therium, and Merycopotamus are regarded as allied types, and 

 it is pointed out that as regards foot-structure Ancodus, or 

 Hyopotamus, as it was formerly called, appears to come much 

 closer to the Suidce than to the Oreodonts. This confirms the 

 opinion that the latter form an exclusively American type, 

 probably related to the camels. 



In a more ambitious article, issued as No. 3 of the fourth 

 volume of the Memoirs of the Carnegie Museum of Pittsburg, 

 Dr. O. A. Peterson discusses the osteology and affinities of the 



