270 
IOWA ACADEMY OF SCIENCE Voi,. XXVII, 1920 
Cyclops insignia Claus 1857. Drainage canal and West Okoboji lake. 
Cyclops macrurus Sars 1863. Marble lake. Not common. 
FAMILY: HARPACTICIDAB 
Genus Canthocamptus 
Canthocamptus minutns Claus 1863. Weedy kettle holes. Rather com- 
mon. 
Laboratories oe Animal Biology, 
State University oe Iowa. 
