COPEPODA 



767 



51 (so, 52) Terminal segment of right exopodite of fifth foot of male much 

 broader at distal end, lateral spine nearly terminal and 

 straight, left endopodite elongate. 



Diaptomiis conipedalus Marsh 1907. 



Found in Louisiana. 

 Length of female, 1.4Q mm. 

 Length of male, 1.325 mm. 



Fig. 1197. Diaptomus conipedatus, male. ^, fifth feet. X 126. 

 5, terminal segments of right antenna. X 193. (Original.) 



52 (so, 51) Terminal hook of right exopodite of fifth foot of male falciform, 

 lateral spine at distal third of segment, second basal seg- 

 ment of right foot broad at distal end with process at 

 external distal angle. 



Diaptamus sanguineus Forbes 1876. 



Mississippi Valley. Occurs in 

 spring, in stagnant pools. 

 Length of female, 1.4 to 2.12 mm. 

 Length of male, i to 2 mm. 



Fig. 1198. Diaptomus sanguineus. A, terminal see 

 ments of right antenna of male. X 193. B, fifO 

 feet of same. X no. (Original.) 



