This illustrates a type of 'Draco' that I have had several encounters with in my life. This began when I was 20 years old and initiated into the Order of White Dragons. This particular picture shows a female, on the right side of the image, who I was mated with in 1978. On the left side are the young princes who have webbing that connects their arms to the torso. This seems to be a feature only the males have. I've written some about this here.