21S 



to 22 OX' 23, and the rej;ion of greatest convexity in the dorsal valve has 

 approached, somewhat, the beak. The youngest individual is conspicu- 

 ously shorter on the hinge line than farther forward. In fact it in every 

 respect approaches the generalized type of Brachiopod shell, as Beecher 

 & Clarke have shown to Ije the case in the species of the Waldron fauna.* 



The Cold-BloodedA'ertebrates of Winona Lake and Vicinity,! 



By Earl E. Rajisey. 



Winona Lake is located in sections 15, 16, 17, 21 and 22 of Township 

 32 north, Range C east, in Kosciusko County, Indiana. The main body of 

 the lake is about one mile southeast of "Warsaw. It is one of the series 

 of lakes belonging to the ilississippi drainage system and is drained into 

 the Tippecanoe River. ' It lies about six miles south of the watershed 

 between the St. LaAvreuce and the ^lississippi basins. 



The lake is irregular in outline and has an area of 0.98 square miles. 

 The greatest length is from north to south and is somewhat more than 

 one mile. The average width is about five-eighths of a mile. The great- 

 est depth is 81 feet. 



The lake, like all the small lakes of northern Indiana, is of glacial 

 origin. The catchment basin is large as compared with the size of the 

 lake itself. Unusually heavy rains change the lake level as much as two 

 to two and one-half feet. The tributary streams are three in number. 

 The largest is Cherry Creek, which, flows into the lake on the southeast. 

 For the most part it flows through woodland. Two other streams, the 

 larger of which is Clear Creek, enter the lake at its extreme southern 

 part. The output of Clear Creek is nearly as much as that of Cherry 

 Creek. Numerous springs on the Winona Assembly grounds drain into 

 the lake. Lands lying to the north are drained into Pike Lake and Center 

 Lake, both of which lie about one mile northwest of Winona Lake. 



The outlet is situated at the southern part of a small bay connect- 

 ing with the main lake on the nortliAvest. It empties into Tippecanoe 

 River at a point about one mile northwest of Warsaw. 



The shore line, for the most part, is low. On the north, a small 

 stretch of cultivated land rises rapidly to a ten-foot elevation line. The 

 Winona Assemblv grounds on the east have the greatest elevation. This 



•Memoirs of the N. Y. Sta*e Museum, Vol. I, No. 1. 



tContributions from the Zoological Laboratory of the Indiana University, C. H. Eigen- 

 mann, Director, No. 39. 



