XII NORTH AMERICAN MUSTELID^. 



CHAPTER X. 

 Subfamily LUTRIN.E : The Otters. 



General considerations — The genus Lufra — Generic characters and 

 remarks — The North American Otter, Lntra canadtnsis — Synon- 

 ymy — Habitat — Specific characters — Description of external char- 

 acters — Description of the skull and teeth — Variation in the 

 skull — History of the species — Geographical distribution — Habits 

 of Otters — Extinct species of North American Otter 293 



CHAPTER XI. 

 Subfamily ENHYDRIN.E : Sea Otter. 



General considerations — The genus Enht/dris — Generic characters — 

 Enhijdris litiris, the Sea Otter — Synonymy — Habitat — Specific 

 characters — Description of external characters — Description of 

 the skull and teeth— History of the species — " The Sea Otter and 

 its hnnting"— The habits of the Sea Otter 325 



