Riddle 36

I saw a creature
on the way going,
it was curiously,
wonderfully, furnish'd ;
had four
feet under its belly,
and an eighth man
above on its back.
It had two wings,
and twelve eyes,
and six heads.
Say what it was.
It went the watery ways ;
it was not a bird only,
but there was of every
one a likeness,
of horse and of man,
of dog and of bird,
and eke of woman's aspect.
Thou art able, if thou knowest,
to say,
that we may truly know,
how that creature's
nature is.