148 
Y. TANAKA. 
EXPLANATION OF PLATE IX. 
Fig. 1-8. Silkworm larvae in a full-grown state. 
Fig. 1. 
Chinese striped yellow (homozygote). 
Fig. 2. 
Chinese striped yellow (heterozygote) . 
Fig. 3. 
Chinese moricaud yellow (homozygote). 
Fig. 4. 
Chinese moricaud yellow (heterozygote). 
Fig. 5. 
Chinese normal yellow. 
Fig. 6. 
Japanese normal yellow. 
Fig. 7. 
Chinese plain yellow. 
Fig. 8. 
Chinese plain white. 
Fig. 9-10. Cocoons. 
Fig. 9. 
Japanese white cocoon. 
Fig. 10. 
Chinese yellow cocoon. 
