An albino of the crayfish Procambarus clarkii (Decapoda : Cambaridae) and its offspring

A male albino crayfish that larked melanin and red pigments except in its c ompound eyes was captured. It also lacked a blue median line that is found on the abdomen in normal crayfish. Its compound eyes were black, as in norm al crayfish. The albino crayfish was mated with a normal crayfish. The inhe rited characteristics of the first filial generation (F-1) were the same as those of normal crayfish. One quarter of the second filial generation (F-2 ) were albinos and the others had normal characteristics. Based on the phen otypes of F-1 and F-2, the albino trait is recessive to normal pigmentation in crayfish and is controlled by Mendelian laws.