Color

Unknown

Reference information

Name	Unknown
Genotype	?/?
Mandatory picture?	Yes
Frequency (all time)	9.04 % (4,470 rats)
Frequency (in the last 2 years)	4.8 % (93 rats)
Average lifespan (all causes)	18.1 months (♀: 18.8 months – ♂: 17.4 months)

Description

Undetermined color due to death at young age, albinism, marking, etc.