Figure 162. — Head of a pygmy sperm whale from northeastern Florida showing gill-like, lightly 

 pigmented "bracket marks." {Photo by F. G. Wood. ) 



Figure 163. — A detafled view of the mouth of a pygmy sperm whale from 

 the east coast of Florida. In both species of Kogia these long, curved, 

 needle-sharp teeth, found in only the lower jaw, lock into sockets in the 

 upper jaw. Pygmy sperm whales have from 12 to 16 (rarely 10 or 11) pairs 

 of teeth; dwarf sperm whales have from 8 to 11 (rarely 13) pairs. (Photo 

 byD. K. CaldwelL) 



147 



