- A very large seal (Macrorhinus proboscideus) of the
Antarctic seas, much hunted for its oil. It sometimes attains a length
of thirty feet, and is remarkable for the prolongation of the nose of
the adult male into an erectile elastic proboscis, about a foot in
length. Another species of smaller size (M. angustirostris) occurs on
the coast of Lower California, but is now nearly extinct.