That's the one ! Does the Met have one now ? They didn't have one before.
The British Museum has several pair and they're HUGE !
Yes, they have two of them, they stood guard at the entrance to the great palace of Ashurnasirpal II. The Met also has many wall panels from the same palace. Check out the number of legs on the animals, they have five. This is so that seen head-on the two front legs are together, but when seen from the side the animal is striding forward. The cone-like head covering signifies a mystical creature of great power.
Check this out:
http://www.metmuseum.org/collections/department.asp?dep=3