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THE AMERICAN NATURALIST [Vol. XLVI 



Professor BasMord Dean, who had learnt of it through 

 Dr. Tarleton H. Bean. 



Locality and Date of Observation. — At the date of 

 these observations, June 1 and 2, 1911, lampreys had been 

 seen in the Nissequogue Eiver for several days. A num- 

 ber of abandoned, partly scattered nests were also to be 

 found; hence June 1, appears to be toward the end of the 

 spawning season, which for Long Island must be put 

 down as the latter half of May. 



The Nissequogue is a small stream which empties into 

 Long Island Sound. At the village of Smithtown, three 

 and a half miles from its mouth, it is shallow (a foot 

 or two deep), perfectly clear, and flows over a bed of 

 large, water-stained pebbles. Here and there are patches 

 of 1 'river grass." The water is perfectly fresh here, 

 although still affected by the tide. A quarter of a mile 

 above and below the village bridge, the river grows 



