MAMMALIA. 



55 



pass into the New World. The best known species is Table-oases 

 Me/phas antiquus, with narrow molar teeth (Fig. 45) and 18 > 19 - 

 straight tusks, which has not been found farther north than 



tfHHB 



Pig. 43. — Grinding surface of left last upper molar tooth of Mammoth 

 (Elephas primigenius), dredged off the Dogger Bank, North Sea, one 

 quarter nat. size. (Table-case 19.) 



Pig. 44. — Mandible of Mammoth (Elephas primigenius), dredged off the 

 Dogger Bank, North Sea ; one-sixth nat. size. (Pier-case 32.) 



the Kirkdale Cave in the Vale of Pickering, Yorkshire. The Pier-ease 

 teeth are less common in Europe than those of the mammoth, 33, 

 but a good English collection is exhibited in Pier-case 33, 



The 



and the series includes a characteristic straight tusk 



