1909.] THE CAYUGA LAKE BASIN, N. Y. 395 



20. Notropis anogenus Forbes. Black-chinned minnow. 



" Quite common in the canal near Montezuma " (Meek). It has 

 been taken several times in fairly large numbers at the mouth of 

 'Fall Creek and in the lower course of Sixmile Creek. 



21. Notropis cayuga Meek. Cayuga minnow. 



Common in the lake and the lower course of tributaries. It 

 has not been found above falls. 



22. Notropis heterodon (Cope). Varying-toothed minnow. 

 Common in the south end of the lake and the lower courses of 



streams where the water is sluggish. It appears to be uncommon 

 at the north end of the lake. The only record we have for that 

 region is twenty specimens taken in the Canoga marshes, June 24, 

 1901. In 1885 J. H. Comstock and S. E. Meek took several speci- 

 mens from Beaver Creek near McLean. This is the only record of 

 its occurrence above the falls. 



23. Notropis blennius (Girard). Straw-colored minnow. 

 Found only at the north end of the basin in sluggish water. 



24. Notropis procne (Cope). Swallow-tailed minnow. 



Not common. It has been taken several times in the lower 

 courses of Sixmile and Renwick creeks. 



25. Notropis hudsonius (De Witt Clinton). Spot-tailed minnow. 

 This species was found for the first time in this basin on April 



25, 1908. It was taken in large numbers with a minnow seine in a 

 slough at the Needham Biological Station in the Renwick marsh. 



26. Notropis whipplii (Girard). Silverfin. 



Common in the lower courses of all the streams at the south end 

 of the basin. In the fall of 1903 several specimens were taken from 

 Eddy pond in Cascadilla Creek above a series of falls which aggre- 

 gate about 400 feet. This is the only place where the species has 

 been found above falls. Its presence here is probably to be ac- 

 counted for by the following : Mr. Wilbur Genung during the sum- 

 mer of 1903 stocked a mill pond, situated at the source of Casca- 

 dilla Creek, with fishes taken from an ice pond on the lowlands 

 near Ithaca where this species is common. Specimens of this were 

 undoubtedly among other species taken and later, when the dam 



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