bottlehead

from The Collaborative International Dictionary of English v.0.48

Bottlehead \Bot"tle*head`\, n. (Zool.)
   A cetacean allied to the grampus; -- called also
   {bottle-nosed whale}.
   [1913 Webster]

   Note: There are several species so named, as the pilot
         whales, of the genus {Globicephalus}, and one or more
         species of {Hypero["o]don} ({Hypero["o]don bidens},
         etc.), found on the European coast. See {Blackfish}, 1.
         [1913 Webster]