129 
Crustacea or WINoNA LAKE.! 
By Joun L. House. 
Two hydrographic maps of Winona Lake with descriptions have been 
published; one by Large (Proce. Ind. Acad. Sci., 1901) and another by 
Norris (Proc. Ind. Acad. Sci., 1901). The lake 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 
end. There is comparatively only a small amount of shallow water in the 
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 1908 and 1909 in connection with the work of the Indiana 
University Biological Station. Many thanks are due to Dr. C. H. Higen- 
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 sunrise. The nauplius forms were not numerous at the first of July, 
but became more abundant as the season advanced. 
‘Contributions from the Zoblogical Laboratory of Indiana University, No, 118. 
[926988 | 
