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LIST OF PLATES. 
Prats VII. 
The Red Fox (Vulpes fulvus). 
The Grey Fox (V. virginianus). 
Prats VIII. 
Skull of the Beaver (Castor fiber). 
Vertical view of the teeth. 
Skull of American Porcupine (Hystrix hudsonius). 
Upper jaw teeth of the same. 
Lower jaw of the same. 
Skull of the Mink (Putorius vison). 
Teeth in the upper jaw of the same. 
or Oe Pe ee 
Puate IX. 
Whelp of the Northern Panther (Felis concolor). 
Adult of the same. 
Puate X. 
The Bay Lynx or Wild Cat (Lyncus rufus). 
The Northern Lynx (Lyncus borealis). 
Pirate XI. 
The Mink (Putorius vison). 
The American Sable or Marten (Mustela martes). 
Puate XII. 
The Skunk (Mephitis americana). 
The Wolverene (Gulo luscus). 
Puate XIII. 
Skull of the Fisher (Mustela canadensis). 
The New-York Ermine, winter dress, (Putorius noveboracensis). 
Puate XIV. 
The Small Weasel (Mustela pusilla). 
The New-York Ermine, summer dress, (P. noveboracensis). 
Puate XV. 
The Hooded Seal (Stemmatopus cristatus). 
The Opossum (Didelphis virginiana). 
Prare XVvils 
The Striped Squirrel (Sciurus striatus). 
The Flying Squirrel (Pteromys volucella). 
