A representative of the Family Ziphiidae. • (a) Lateral view of the skull and lower jaw of Gervais’ beaked whale, Mesoplodon europaeus. Note the reduced dentition. (From Van Beneden and Gervais, 1880.) • (b) Right side of the body of Stejneger’s...

A representative of  the Family Ziphiidae.

  • (a) Lateral view of  the skull and lower jaw of Gervais’ beaked  whale, Mesoplodon  europaeus. Note  the  reduced  dentition. (From  Van Beneden  and  Gervais,  1880.)  
  • (b)  Right  side  of  the  body  of  Stejneger’s  beaked  whale, Mesoplodon stejnegeri.

(Illustrated by P. Folkens.)