MATTHEW, CLIMATE AND EVOLUTION 



253 



potamus have enabled it to reach these island retreats more easily than 

 terrestrial competitors. ) 



Table XIV. — Distribution of Anthracotheres and Hippotami 



The remaining groups of ruminants are not of especial interest in this 

 discussion. The entelodonts are Holarctic; the oreodonts Nearctic; 

 anoplotheres and csenotheres Palsearctic; there is no evidence that they 

 originated elsewhere or that they reached any other zoological region. 

 Entelodon (sensu lato) appears simultaneously in Europe and the United 



8'J/. minutus is (fide Bate) congeneric with tlie Liberian species. Ttie rules of pri- 

 ority call for the application of Hyopotamus Kaup to this genus, instead of Chaiopsis. 



