so ROYAL SOCIETY OF CANADA 



CL.ASS MAMMALIA. 



SUBCLASS PROTOTHERIA. 



ORDER MULTITUBERCULATA. 

 Flag i AULAciDiE. 



36. Ptilodus primrevus. Lambe. 1902. Cretaceous, Belly River 



series. Alberta. 



SUBCLASS EUTHERIA. 



ORDER CETACEA. 



SUBORDER ODONTOCETI. 



Uelphinid.î:. 



28. Delphinapterus leucas (Pallas). 1776. (Beluga catodon. ) 



Pleistocene. New Brunswick and St. Lawrence river 

 valley. 



SUBORDER MYSTACOCETI. 



Bal/enid.^:. 



28. Megaptera boops (Linn.). 1758. (M. longimana.) Pleis- 



tocene. Ontario. 



ORDER UNGULATA. 



SUBORDER PROBOSCIDEA. 



Elephantid.ï:. 



15. Mastodon americanus (Cuvier). 1798. Pleistoc?r!e. 



Cape Breton island; region south of James bay; south- 

 ern Ontario ; and Manitoba. 



41. 14. Elephas primigenius, Blumenbach. 1803. Pleistocene. 



Region round Hudson Bay ; southern Ontario ; Alberta ; 

 British Columbia ; Yukon. 



SUBORDER PERISSODACTYLA. 



Equiuj.. 



8. 10. Mesohippus westoni (Cope). 1S9L Oligocène, Assiniboia. 



TlTANOTIIEBIID.^. ( BrONTOTIIERIID-î: ) . 



7. s. 10. Megacerops angustigenis (Cope). 1SS6. Oligocène. Assi- 



niboia. 

 10 ^Mogacerops coloradensis? Leidy. 3870. (M. americanus. 



M. proutii.) Oligocène. Assiniboia. 



9. 10. Megacerops solwynianus (Cope). 1889. Oligocène. Assi- 



niboia. 

 9 10. ? Symborodon acer, Cope. 1873. (S. syceras. ) Oligocène. 



Assiniboia. 



