351 



fine specimens are now in the possession of one of tlie leaders of this 

 branch. Dr. Binney writes that he is unaware of it being found east 

 of the Alleghany Mountains of Pennsylvania. Among hundreds of 

 specimens of M. albolabris collected in the vicinity of this city and of 

 Toronto, not a toothed shell has been noticed. If by " Me.sodon albola- 

 bris var. deeitifera, Binney," recorded in Trans. No. 5, p. 81, from the 

 marl beds at Hemlock Lake, is meant var. dentaia, then this vaiiety 

 was not long since to be found near Ottawa, as the shell marl is entirely 

 lluviatile in its origin, and all land shells found in it are recent. 



A second addition to the lists previously published has been made 

 in the rare and beautiful Sphaerium rosaceum, Prime. This was found 

 on the muddy shores of the eastern end of McGoey's Lake, in the Laur- 

 entides, near Chelsea. Had time permitted a great many specimens 

 might be obtained from this most fruitful collecting ground. Large 

 and fine examples of Sphaerium sulcatum were also found in the same 

 locality, which affords, in addition, the beautiful Physa Lordi and Lim- 

 ncea megasomcc. 



On the Club excursion to Britannia a number of shells were col- 



leoted, but, so far as we are aware, they do not call for any particular 



observations. 



F. K. LATCHFOPJ), 



P. S. POIRIER, 



Leaders. 

 4th March, 1886. 



/ 



