Pair of mormoops

Here's another bat we caught in nets at the cave in the Yucatan. The most frequently caught bat that night was the local Momoops, which was probably the ghost-faced bat, Mormoops megalophylla. Besides having a cool name and ultra-strange faces, these bats are different from their Phyllostomid cousins by having their echolocation decorations on their mouth instead of their nose. They live in caves and eat only insects. See if you can find their tiny eyes. Also, which one is upside down?