I believe I can identify the mystery “deer” that was mentioned on the Fortean Zoology blog. It’s not a deer at all. Instead, I think it is the creature featured below.
I think it’s a female steenbok. (Compare with this close-up. And this one.)

Female steenbok.
Steenbok are a common game species that are often taken by big game hunters. They are native to areas that were easily accessed by Europeans during colonialism, and even today, sport hunters take them.
If it’s not a steenbok, then it is an oribi, which is a somewhat larger antelope. It has a larger distribution in Africa, but I think the typical oribi has more white on its face than the typical steenbok. That’s why I’m wagering that it’s a steenbok.
However, old taxidermied specimens don’t often have all of the identifying marks of the living animal. My guess is that this animal had larger ears when it was alive. Some of the less arid races of steenbok have smaller ears.
I don’t think it’s a gray or common duiker, because the head shape is all wrong. The female common duikers have black marks on their heads, which demarcate scent glands. The red forest duiker lacks the lighter marks around the eyes, and it also has the wrong head shape. All the other red or reddish duikers have rather longer faces than this specimen does. I don’t think any have those lighter marks around the eyes.
So the “deer” is actually some species of small antelope from Africa– most likely a steenbok (which is not to be confused with what the Dutch call a “Steenbok”– that’s an ibex.)






