TABLE OF CONTENTS. 



Page. 

 Title ............................................................................ I 



Prefatory note ................................................................... HI 



Letter of transmittal ............................................................. V 



Table of contents ............................................................ VH 



List of illustrations ................... ................... 



Characters of the PINNIPEDI^ 



Family ODOB^NID^ Walruses 



Synonymy ................... ................... 



General observations and characters of the group 

 Genera 



Synopsis of the genera 

 Genus OcoBjENUs 



Synonymy and history ............ . 



Species ... 



ODOB^NUS KOSMARUS Atlantic "Walrus 



Synonymy and bibliographical references 



External characters 



Sexual differences 



Individual variations and variations dependent upon age 



Measurements of skulls 



Dentition 



Fossil remains ____ ................................. ........... . 



Geographical distribution, present and past 

 Ooast of North America 

 Coast of Europe 

 Nomenclature 

 Etymology 

 Literature 



General history 

 Figures 



Habits and the chase 

 Products 

 Food 

 Functions of the tusks ......................................... 137-138 



Enemies ......................................................... 138-139 



Domestication ................................................... 140-147 



ODOB.ENUS OBESUS Pacific "Walrus ................................. 147-186 



Synonymy and bibliographical references ....................... 147 



External characters and skeleton ................................ 147-155 



Measurements of skeleton .................................. 14iM5U 



Measurements of skulls ..................................... 155 



Differential characters ........... . ............................... 156-170 



Nomenclature ................................................... 170-171 



General history .................................................. 171-172 



Figures .......................................................... 172-174 



Geographical distribution ........................................ 174-178 



Habits, food, commercial products, and the chase ............... 178-186 



Family OTARIID^ Eared Seals .......................................... 187-411 



Synonymy and characters of the group ................................. 



Technical history ........................................................ 188-207 



Higher groups ....................................................... 188-190 



Genera .............................................................. 190-193 



Species .............................................................. 193-207 



IX 



1 



fr-186 

 5 



5-12 



12-14 



14 



14 



14-17 



17-23 



23-147 



23-26 



26-38 



38-43 



43-45 



46 



47-57 

 57-65 

 65-79 

 65-71 

 71-79 

 80 



80-82 



82-107 



82-92 



92-107 



107-133 



133-134 



134-137 



