A Kittydog is a magical cat and dog hybrid species, often but not limited to being bipedal, being very versatile in design traits. They often have a pair of both cat ears and dog ears on the head with floppy dog ears being located underneath standard cat ears, but are flexible in how many and where they are located.
Other design elements such as the way they’re drawn in lines, eye shape, body shape, and the like distinguish them from other drawings with just the design traits of having both cat and dog ears.
The species was created by artist kittydogcrystal, and is an open species.

See the full reference sheet here: https://www.deviantart.com/kittydogcrystal/journal/kittydog-open-hybrid-sheet-750843116