716 Wisconsin Academy of Sciences, Arts, and Letters. 
ability seemis about the same. Plate XLI, Figures 9 to 11, 
show the arrangement of the viscera to be essentially similar. 
The caeca are not as long, however, the longest averaging 13.1 
per cent in sixteen cases. The abdomen is longer, the vent be¬ 
ing 46.4 per cent of the length from the cephalic end in four¬ 
teen cases. The length of the intestine is 1.02 times the length 
of the fish as found in five cases. The food is dominantly 
crayfish of a considerable size 
The relative lengths of the caeca show the longest to be those 
adjoining the gastric interval as before, but the shortest caecum 
is farther to the left than in Lepomis (Plate XLIY, Fig. 5). 
Text-Figure 1. 
The distribution of frequencies of the number of caeca in the several 
species. 
Lepominae: 
Lepomis pallidus —Continuous line beginning at 5. 
Ambloplites rupestris —Broken line beginning at 5. 
Eupomotis gibbosus —Line beginning at 4. 
Centrarchinae: 
Pomoxis sparoides —Line beginning at 7. 
Mieropterinae: 
Micropterus salmoides —Line beginning at 8. 
Micropterus dolomieu —Line beginning at 10. 
Ordinate—Number of specimens. 
Abscissa—Number of caeca. 
