Shiro Utsuri (Black on White)

Shiro Utsuri

白写り

shee-ROH oot-SOO-ree

Utsurimono Can Be Ginrin

Shiro Utsuri is a striking koi variety characterized by its bold, contrasting patterns of black (sumi) on a white base. This variety is celebrated for its dynamic and balanced patterns, which create a visually appealing contrast across the body of the fish.

Quick Facts

Base Colors

white

Marking Colors

sumi (black)

Scale Type

Wagoi

Key Features

The primary visual features that define Shiro Utsuri are its contrasting black and white patterns, with clear, well-defined edges between the colors.

Pattern Description

Ideal Shiro Utsuri patterns feature a strong, clear sumi (black) that contrasts sharply with the white base. The sumi should be well-balanced and distributed across the body, ideally wrapping around the body and including the face. The edges of the sumi should be crisp and well-defined.

Name Meaning

Shiro Utsuri translates to 'white reflection' or 'white reversal', highlighting the variety's distinctive black patterns on a white base. The name reflects the mirrored or reversed appearance of the black and white coloration.

History

Shiro Utsuri was developed in the early 20th century in Japan. It evolved from the Utsurimono variety, with breeders focusing on enhancing the clarity and contrast of the black and white patterns. It has since become one of the most popular and recognizable koi varieties.

Ideal Characteristics

Judges and collectors look for Shiro Utsuri with a strong, healthy body conformation, a clear and bright white base color, and deep, lustrous sumi. The sumi should be well-balanced, with a pleasing distribution that includes the head and wraps evenly around the body.

Commonly Confused With

Shiro Utsuri can be confused with Shiro Bekko, which also features black on white. However, Shiro Bekko lacks the wrapping pattern of sumi around the body and typically has less sumi coverage.

Judging Criteria

Judges evaluate Shiro Utsuri based on the balance and quality of the sumi and shiroji (white base), the clarity of the pattern edges, body shape, and overall health and luster of the fish.