[quote=Valiance]
No, nautiluses are.Nautilus pompilius is the largest species in the genus. One form from northwestern Australia, once called Nautilus repertus, may reach 26.8 centimetres (10.6 in) in diameter.They're giant sea snails that have tentacles and swim around by spinning at really high speeds.
[/quote]

Like the boat from 20,000 Leagues Under the Sea?

[img=http://wallpoper.com/images/00/37/59/83/blue-eyes_00375983.jpg]