246 UNIVERSITY OF COLORADO STUDIES 
Graptoleberis testudinaria Fischer. 
Twin Lakes; *Boulder. This is common in several lakes near Boulder. The out- 
lines of these specimens is somewhat different from Herrick’s figure. I have not seen 
the specimens from Twin Lakes.’ 
Latona setifera (O. F. M.) 
Twin Lakes. 
Macrothrix hirsuticornis Norman and Brady. 
Twin Lakes. Cushman! records this species from Newfoundland and states that 
this is its first recorded appearance on the Western Hemisphere. This record of Juday’s 
from Twin Lakes is nearly a year earlier. 
Macrothrix laticornis (Jurine). 
Near *Boulder. 
Macrothrix montana Birge. 
Pike’s Peak. 
Moina affinis Birge. 
About Greeley. 
Pleuroxus procurvatus Birge. 
Pike’s Peak; Twin Lakes. Pleuroxus occurs abundantly in collections from several 
lakes about Boulder. No two individuals are alike. I am unable to place them. 
Scapholeberis mucronata (O. F. M.) 
Greeley; Twin Lakes; *Boulder. 
Simocephalus serratulus (Koch). 
Pike’s Peak; *Boulder. 
Simocephalus vetulus (O. F. M.) 
Greeley; Twin Lakes; *Boulder; *Redrock Lake. 
COPEPODA 
Actheres carpenteri Packard. 
The mountains of Colorado. Quoted by Beardsley from “Hayden Survey.’ 
Canthocamptus minutus (O. F. M.) 
Greeley. 
Cyclops albidus Jurine. 
Greeley; Pike’s Peak; Twin Lakes; reported from Wray and Laird by Pearse. 
Cyclops ater Herrick. 
Greeley. 
Cyclops insectus Forbes. 
Greeley. 
Cyclops pulchellus Koch. 
Twin Lakes. 
Cyclops serratulus Fischer. 
Greeley; Pike’s Peak; Twin Lakes; reporteu from Wray and Laird by Pearse. 
1 CusHMAN, J. A., “‘Fresh-water Crustacea from Labrador and Newfoundland,” Proc. U. S. Nat. Mus. 
33, DO. 1589, pp. 705 and 7009. 
