KEY TO THE ENTOMOSTRACA OF COLORADO 



289 



107 (106) Terminal process nearly as long as penultimate segment and slightly 

 enlarged at tip. Endopodite of right 5th foot decidedly longer than first 

 segment of exopodite. Length: male 1. 15; female i . 25 mm. 



Diaptomus sidles Forbes 



Greeley; 4,600 ft. [Great Lakes, Wisconsin, Yellowstone region, Nebraska, Colorado.] A cold-water 

 form. 



Fig. 63. — Dtaplomus sidles. (After Marsh.) 



108 (105) Terminal process longer than penultimate segment . . 109 



109 (no) Terminal processes of last segment of exopodite of 5th foot long — 

 nearly as long as combined length of last two segments. Length: male, 1.7; 

 female, 2 . i mm Diaptomus arapahoensis Dodds 



ToUand region (type locality): 10,750-11,135 ft. 



Fig. 64. — Diaptomus arapahoensis. 



