Grullos are sometimes confused with roans or grays. Breeds of cattle known for roans are the Belgian Blue and Shorthorn. Homozygous roans and heterozygous roans ("Rn/rn") are identical in appearance. Ambrose H. Sevier was speaker of the house; Andrew Roans, clerk. On September 17, 1923, the section west of Roans Prairie was cancelled. Less common are white, roans, palomino, dun, and buckskin. His sire was also noted to have sired a good number of roans. There were also roans, greys, and chestnuts among them. Roans, palominos, buckskins and silver dapples exist in smaller numbers. These darker patches are called "varnish marks" and are not found in true roans. Some heavily fleabitten grays may also be confused with roans. However, grays lighten with age, while roans do not. It reaches Roans Prairie and an intersection with State Highway 30. In some breeds, homozygous roans can be identified by an indirect DNA marker test. Varnish roans are born with a dark base coat color, usually with some spotting.