28 



median line and terminal apertures (so called) very distinct, no 

 stride detected with Ross's ^ in. objective. Front view : form the 

 same as side view, except the sides are nearly parallel, instead 

 of beins; as much curved as in side view. 



Lon. ^ mm. lat. _iLmm. Very rare. 

 100 100 "^ 



Mr. William E. Baker, of Brookline, was chosen a 

 Resident Member. 



February 16, 1859. 



Dr. C. T. Jackson, Vice-President, in the Chair. 



Mr. T. J. Whittemore read the following description 

 of a new species of Helix, from Maine. 



Helix milium Morse. 



Shell minute, transparent, shining ; epidermis white, with a 

 greenish tinge ; distinctly and regularly striated above ; whorls 

 rounded, rapidly enlarging ; suture very deeply impressed; spire 

 slightly elevated ; microscopic lines running parallel with the 

 whorls, more conspicuous beneath ; umbilicus quite large, deep, 

 and showing all the volutions ; outer lip sharp. 



Diam. 0.05, height 0.02. 



Distribution — Portland, Me. ; Augusta, Me. ; Bethel, Me ; 

 Saco, Me. ; Westbrook, Me. 



Observations. The rapidly enlarging w^horls remind one at 

 first sight of the young of H. indentata, Say. The under side 

 resembles slightly the young of H. minuscula, Binney. It is 

 about the size of H. minutissima, Lea. 



The peculiarities of the shell are its diminutive size, its rapidly 

 enlarging and well-rounded whorls, its deep and regular stria- 

 tions, which become obscure at apex, and the microscopic lines 

 running parallel with the whorls. 



This little shell I first found at Mt. Independence, Westbrook) 



