ApHC--Appaloosa Horse Club--Appaloosa X Quarter, Arabian, Thoroughbred

Notice the Thoroughbred "look" characteristics/conformation of the horse above.

The horse above Mary Ann, in the world of White Tigers would be called a hetero, or heterozygous, or CPO(certified pedigree option) in the world of Appaloosas. She had a colored mother and a quarter horse father. Most "solid" Appaloosas are recognized by their colorful spotted coat, striped hooves, mottled skin (most visible around their eyes and on their muzzle) and white sclera around the eye. And are valuable for producing some of the colors shown, as well as conformation. Originally the ApHC allowed "crop outs", (which is different from a CPO horse of today once blood typing became available. Occasionally 2 Quarter horses would produce a foal that had too much white usually on it's legs, and they could not be registered as Quarter horses. And occasionally 2 colored Appaloosas will produce a solid foal. In the late 70's they caused a shit storm, and this is when I stopped my membership in the organization, by allowing solid-colored or "non-characteristic" Appaloosas to be registered(Quarter horse x Quarter horse) but a foal of Appaloosa parents who did not have sufficient color was often denied registration. The registry split into 2 registries, but now with bloodtyping the parentage of a solid foal can verified and they are called CPO's. So you see Mary Ann, they are not striped white, snow white, kinda white, spots on the ears white, more stripes on the tail then his mother white, etc etc. They are WHITE Tigers or they are CPO/hetero tigers. The rest is unregulated, non standardized individuals making up what ever the world wants to hear. I stopped with the snow white debate nonsense, because I was waiting for you to ask me about Appaloosas. LOL
This is a beautiful example of the "modern" Appaloosa, and I included it to illustrate the tail for comparison below to a "rat tail" His mane is long, but because he is shown as a western pleasure horse his mane has been cut/trimmed as is the standard for western pleasure in the Quarter horse breed also.