From wave ... or no, the event is better told than watched:

Still may the thing float free, globose and opaline

All over, save where just the amethysts combine

To blue their best, rim-round the sea-flower with a tinge

Earth's violet never knew! Well, 'neath that gem-tipped fringe,

A head lurks—of a kind—that acts as stomach too;

Then comes the emptiness which out the water blew

So big and belly-like, but, dry of water drained,

Withers away nine-tenths. Ah, but a tenth remained!

That was the creature's self: no more akin to sea,