Henry's Pockets

This has surely got to be a contender for the Nine–Banded Armadillo Prize.

It would have been far better asked the other way round. For example, "On which parts of a cat's anatomy would you find the cutaneous marginal pouches – also known as Henry's pockets?" Or, "On which type of domestic or wild animal would you find the cutaneous marginal pouches – also known as Henry's pockets?"