Cyclops. 
213 
Cyclops modestus Herrick. 
Plate V, figs. 10-13. 
1883. C. modestus Herrick (25), p. 500. 
1884. “ “ “ (26), p- 154, pi. R, figs. 1-5. 
1887. “ “• “ (30), p. 14. 
I have found C. modestus in only one locality,—Rush Lake. 
Herrick found it in Alabama and Minnesota. It appears to be 
a clearly marked species. The color in all my specimens was 
■distinctly purplish, a color entirely different from that of the 
■other entomostraca in the same collections. In all my speci¬ 
mens the antennae were 16-join ted, and about as long as the 
first segment of the cephalothorax. The cephalothorax is oval 
and very broad as compared with the abdomen. The abdomen is 
slender. The furca is about as long as the last two abdominal 
segments, with the lateral spine situated about midway of its 
length. The external margin of the furca is hollowed out below 
4he lateral spine. Of the terminal setae, the first is small and 
spine like, the second about four-fifths the length of the third, 
and the fourth slightly shorter than the second. 
The armature of the terminal 
joints of 
the 
swimming feet is 
as follows: 
FIRST 
FOOT. 
Outer br. ex. 
3 spines. 
Inner br. 
ex. 
1 seta. 
ap. 
1 spine, 1 
seta. 
ap. 
2 spines, 1 minute 
seta. 
in. 
3 setae. 
in. 
2 setae. 
SECOND FOOT. 
Outer br. ex. 
3 spines. 
Inner br. 
ex. 
1 seta. 
ap. 
1 spine, 1 
seta. 
ap. 
2 spines. 
in. 
4 setae. 
THIRD 
FOOT. 
in. 
1 spine, 2 setae. 
Outer br. ex. 
2 spines. 
Inner br. 
ex. 
1 seta. 
ap. 
I spine, 1 
seta. 
ap. 
2 spines. 
in. 
4 setae. 
in. 
1 spine-like seta, 
