> > > Unicorn of the sea. Picture a seal with a horn sticking out of its face.
>
> Aaaugh! No! Don't! A SEAL?! Aaaugh!
>
> Picture, Uni, a beluga, slightly less round in the middle, wilth a long, slender, spear-length
> spiral horn

A beluga? Okay.
I apologise - I've only ever seen them in pictures, and the pictures I've seen make them look like seals.

> protruding from its _forehead_.

Its left tooth protudes from its forehead? That's clever.

Paul