Not just a kangaroo, and not just a nail-tailed kangaroo. A lunated nail-tailed kangaroo. And a cute one, too. From John Gould’s The Mammals of Australia, 1863. Nowadays, Onychogalea lunata is called the crescent nail-tailed wallaby. I like to think they’re still cute, though.
I found the picture in the Biodiversity Heritage Library.