D*vi»io« of Flihea, 
U" S., National Mujeum 
BULLETIN 
OF THE 
UNITED STATES FISH COMMISSION. 
VOL. XX, 
1 9 00 . 
SECOND 3?_A_ZE£T. 
GEORGE M. BOWERS, Commissioner. 
WASHINGTON: 
GOVERNMENT PRINTING OFFICE. 
1902 . 
