Like a Kohaku, Shiro Utsuri are classically simple, two-colored koi. Therefore, great store is placed on the quality of the white skin. This should be the color of snow with a healthy, yet subtle sheen.
Shiro Utsuri are most often confused with Bekko, but by applying the same criteria that differentiate Showa from Sanke, the difference becomes clear. A Shiro Utsuri is a black fish with white markings, a Shiro Bekko is the reverse, and all Utsuri sumi is of the typical Showa "wraparound" type.