Gundis, according to Wikipedia, are small, stocky rodents that live in Africa. To me, they look like short-eared rabbits. Very unusual short ears. Cool fact: rabbits are no longer considered rodents, and actually are placed in a completely different order, Lagomorpha, which also includes pikas. What they all have in common, though, is that their incisor teeth grow continuously. But rodents only have enamel on the front of their incisors, while rabbits and their kin have enamel both on the front and back of theirs. Also, rabbits are strictly vegetarians, while many rodent species are not.
Gundis are vegetarian, and their incisors lack the enamel found in other rodents. For some reason, their hind feet have comb-like bristles, which is why they are also called comb rats.
I'm not sure why, when I scan these paintings I get these weird peach-colored streaks. You can see them in the chin area and between the hind leg and body. Perhaps the scanner doesn't process these type of colors the same way as it does bird colors, and I need to find a way to fix this.