Report of the President 57 



phylogeny and relation to their environment and the life zones. 



The Curator has already prepared and published several papers 



on the mammals of Colombia, a full report on which is about 



half completed. As part of this work several groups are 



being treated monographically in special papers. 



During the year a paper by H. E. Anthony has been 



published on the mammals of northern Malheur County, 



_ , ,. . Oregon; a paper by Dr. Elliot on new mon- 



Pubhcations , , ~ , ,. , , 



keys from Colombia; a paper on the mammals 



of Korea by the Curator and Assistant Curator Andrews, 



based on the latter's collection secured last year; two papers 



describing new South American mammals, and a revision of 



the murid genus Melanomys, by the Curator. These articles 



have all appeared in the Bulletin. A paper on the Muskox 



by the Curator, appeared early in the year in the Memoirs, and 



Mr. Andrews's paper on the California Gray Whale {Rhachi- 



anectes) is now in press in the Memoirs. 



EXTINCT VERTEBRATES 

 DEPARTMENT OF VERTEBRATE PALAEONTOLOGY 



Henry Fairfield Osborn, Curator Emeritus; W. D. Matthew, Curator 



The Department of Vertebrate Palaeontology records 



another season of unusually successful field work. Four 



« r t^- , * expeditions were sent out, to the Creta- 



Success of Field v , . , ' , _ 



_ ,. . ceous formations of Alberta, the Eocene 



Expeditions 



of New Mexico and Wyoming, and the 



Miocene of Nebraska. Nine skulls and three mountable 

 skeletons of dinosaurs, two skeletons and several skulls of 

 the very rare Palaeocene mammals, and two complete skele- 

 tons of the gigantic "Clawed Ungulate " Moropus, are among 

 the prizes secured. 



A valuable collection of Tertiary fossils of India has been 

 secured, through exchange, from the Geological Survey of 



_ . India. Through exchange with the University 



Exchanges , _ ,., , & .„ . , . 



of California the Museum will shortly receive 



a splendid series of skulls and skeletons of the extinct animals 



