@donkeypong, I got a few time for understanding about hippocamp. I've heard of these mythical animal from oldest Rome's history book. But you showing great points for understand them.
If you’ve ever seen the Trevi fountain in Rome or admired pictures of it, you’ve seen hippocamps. Without a close look, you probably thought they were horses.
That's point change my mind. Before read this blog I thought seriously they were horses. I see closely them. But I never thought they were hippocamps. However I believe Hippocamp is mythical animal to the world. That's perfect article you introduced to community.