I know what you mean. I've seen coats described as silver fox but it looks like crystal fox to me. Or coats described as fox or coyote but look like Tanuki. I saw the coyote coat that was listed as fox. I would love to find a sable that was labelled as mink! That would be like finding the elusive pot of gold!!
A lot of furs are miss labeled. My Tom Ford skunk was listed as fox, my Gucci Fisher was listed as fox, my Opossum was listed as a mystery fur lol. There are more but this is just off the top of my head

It seems when sellers don't know the fur they just say it's fox.