129 



Crustacea of Winona Lake.^ 



By John L. Housb. 



Two hydrograpbic maps of Wiuoua Lake with descriptions have been 

 iniblisbed; one by Large (Proc. Ind. Acad. Sci., 1901) and another by 

 Norris (Proc. Ind. Acad. Sci., 1901). The hike is situated in Kosciusko 

 County, Indiana, about one mile southeast of the city of Warsaw. It is 

 irregular in outline and has an average length of about one and one-eighth 

 miles north and south and an average width of nearly three-fourths of a 

 mile east and west with a large bay extending westward from the north 

 cud. There is comparatively only a small amount of shallow water in tlie 

 lake as the bottom slopes off rapidly from the shores and reaches a maxi- 

 mum depth of eighty-one feet. 



The fresh water Crustacea are well represented in this lake both in 

 variety of forms and in number of individuals. It is not probable that 

 this list enumerates all the species to be found here. 



The material for this report was collected during the months of July 

 and August of 190S and 1909 in connection with the work of the Indiana 

 University Biological Station. Many thanks are due to Dr. C. H. Eigen- 

 mann, Director of the Station, for the many courtesies and suggestions 

 received. 



The Entomostraca were taken at about all hours of the day and night 

 by means of the tow net, dip net and by pumping. The day catches 

 showed very few forms near the surface even on cloudy days, but they 

 were abundant near the surface from one to two hours after sunset until 

 about sunri.se. The nauplius forms were not numerous at the first of July, 

 but became more abundant as the season advanced. 



Contributions from tli(> Zoological Laboratory of Indiana University, Xo. IIS. 



19— :^GI)S«] 



