The practical and genetic difference between a dapple and a double dachshund is that the former has only one dapple parent while the latter has two. Aside from looking into your pup’s genealogy or meeting its parents, however, the visual way to distinguish a dapple dachshund from a double dapple is to just look at how much white is present in the dog’s coat. This isn’t a fool-proof method as some single dapple dachshunds will have more white while double dapples will occasionally have less white than expected. Overall, however, most single dapples will have less than 40% to 50% of their coat colored in white while most double dapples will be more than 50% white – often even more than 80%.