X-cuse me for taking an easy way out

But creatures starting with X, well, there's not much about.

There may be a fish in the ocean's vast deeps

One of the ugly ones that give you the creeps.

Or one could invent a fabulous beast

Found in the Arctic, or parts of the East.

Or one can turn to the dictionary's page -

Xylophagous insects? Hardly the rage!

Bugs feeding on wood somehow don't engage

The muse of a poet at this alphabetical stage.