310 
BULLETIN OF THE UNITED STATES FISH COMMISSION, 
EXPLANATION OF PLATE LI. 
Fig. 38. View from beneath of an adult female of the common sturgeon, 8 feet long, with the abdo- 
men cut open to expose the enormous mass of dark-colored roe. The duodenal loop of the 
intestine is seen to be farther forward than in the young, and to be smaller in diameter in 
proportion to the dimensions of the animal. On the “ killing floats” are seen the sieves and 
tubs used in the manufacture of caviare. 
