310 GENERAL BIOLOGY 



found in Egyptian deserts, appears to have been a 

 pig-like animal about as big as a cow, with a very 

 little, if any, snout or " trunk " (of course only the 





FIG. 112. Profile views of ancestors of the elephant: 1, the 

 Indian elephant (modern) ; 2, the American mastodon (Pleistocene) ; 

 S, Tetrabelodon (Miocene, France) ; 4 Paleomastodon (Eocene, Egypt), 

 5, Meritherium (Eocene, Egypt). (From Lankester's "Extinct Ani- 

 mals," after Andrews.) 



skeleton is preserved). Both jaws were heavy, with 

 peculiar molar teeth and large prominent incisor 

 or tusk-teeth, those of the lower jaw nearly as long 

 as those of the upper, but more horizontal. These 



