PLATE XI 



Skulls of Southern Sea Lions, females. Dorsal aspects. 



Fig. I. First year, No. 1102. 



Fig. 2. Second year. No. 1075. 



Fig. 3. Third year, No. 1078. 



Fig. 4. Fourth year, No. 1023. 



Fig. 5. Fifth year. No. iioo. 



Fig. 6. Sixth year or over. No. 1132. 



