PLATE VII 



Fig. I. Male Sperm whale, South Georgia, 1926. Note throat grooves 

 and corrugations on flank and ventral surfaces. 



Fig. 2. Female Sperm whales, Durban, 1930. Note white lips of both 

 jaws of right-hand whale ; blow-hole, dorsal fin and corrugations on 

 flank of left-hand whale. 



Fig. 3. Palate of male Sperm whale. South Georgia, 1925. Note sockets 

 for teeth of lower jaw, and rudimentary teeth (shown by arrows). 

 The anterior end is at the right. 



