Animal that the Aztecs called ayotochtli, or "turtle-rabbit" (9)
I believe the answer is:
armadillo
(Other definitions for armadillo that I've seen before include "Insect-eating mammal" , "Nocturnal animal" , "Molar laid out for the horny-plated animal" , "Burrowing mammal with a covering of bony plates" , "Insectivorous mammal" .)