closely  resemble  those of  the  other  small  members of  
 the  Petrel  group.  This  bird  has  been  met  with on  the  
 west  coast of  Prance,  and  rarely in  the  Mediterranean.  
 The only  specimen  in  my  possession  was  obtained in  
 the  Bay of  Arosa,  in  the  North-west of  Spain.