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BULLETIN OF THE UNITED STATES FISH COMMISSION. 
EXPLANATION OF PLATE LIII. 
Fig. 40. Side view of adult female of the common sturgeon, 8 feet in length. From a photograph. 
This figure serves to illustrate the striking change in the outlines of the head and body of 
the adult as compared with the side view of the young of the same species on Plate 
XL VI, Fig. 25. 
