52 



OEiaiNAL ABTTCLES. 



Bos PRiMiGENius. A. Skiill of tlic existing Race, after RUtimeycr. — B. Fossil 

 skull. Owen's British Fossil Mammals and Birds. 



B. LONGIFRONS. A. Skull of the existing Racc, after Eiitimejer, — B. Fossil skull. 

 Owen's British Fossil Mammals and Bu'ds. 



B. FRONTOSUS. A. Skull of the existing Race, after Riitimcyer. — B. Fossil skull, 



after Nillson. 



