In some of the Anne McCaffrey books such as Damia’s Children, there is a species called "Mrdini". They are strong, have teeth, “poll eyes”, legs that do not allow them to ride horses, stubby hands, and fur, and are also very strong.
When I read the books I try to imagine some sort of three-eyed human-sized ferret or something, but I have no idea.
Is there any actual work or statement that describes them well enough to make a picture that fits the descriptions from the book? I don’t even know what a poll eye is.