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(Photograph by V. N. Casey) 



Canthocamptus staphylinus (Copcpoda, Harpacticoida) 

 emerging from its cyst. This species is most abundant 

 and active in the winter. In the summer it forms 

 cysts in which it rests through periods of high 

 temperatures and low oxygen concentrations. This 

 specimen is from the Lago Maggion, N. Italy, 

 found bv Dr. O. Ravera. 



