The animal needed for the quest is a Snow Jaguar, but in the scroll it is erroneously named a Snow Leopard, which is the name of the common variety version and not rare at all. Also, Golden Dragon vs Gilded Dragon might confuse some people, but less likely imo.
This is definitely an annoying bug until you know about it. I thought I hit the jackpot one day, found 3 snow leopards in a row and felt like quite the idiot when I was trying to sell them.
Chris can you rename my snow jaguar The Jade Tiger of Ashentang and attach a vanquishing katana to each paw?