TABLE OF CONTENTS. 



Pages. 



Family ZAPODID^ 461-479 



Genus Zapus 465-479 



Zapits hudsonius 467-479 



Synonymy 467-468 



Description 468-476 



a. Cranial characters 468-472 



b. Dental characters 472-472 



c. External characters 472-476 



Measurements 476-476 



Geographical distribu tion 476-477 



History of the species 477-479 



459 



