118 PROCEEDINGS OF THE ACADEMY OF 



July 28. 



The President, Dr. Ruschenberger, in the chair. 



Six members present. 



On report of the committees to whicli they had been referred, 

 the follo'wiug papers were ordered to be published: 



DESCKIPTION OF A NEW SPECIES OF HELIX. 

 BY JAMES LEWIS, M.D. 



Helix (Mesodon) Lawii, Lewis. 



^ex. Shell urabilicated, subglobose ; epidermis pale 



r ~~^\ corneous, thin and delicately striate ; spire but a 

 j^^^ri^ little elevated; suture quite distinctly impressed; 

 i _ whorls nearly five, the last a little expanded and 



then conspicuously contracted as it approaches the 

 peristome ; peristome white, reflected, rather nar- 

 row, scarcel}^ thickened, the margin being some- 

 what sharp ; aperture well rounded, elliptically 

 lunate, scarcely less in area than the unexpanded portion of the 

 last whorl, and scarcely modified bj' the presence of a narrow, 

 slightly curved, slightly elevated lamellar tooth on the parietal 

 wall ; umbilical region but a little impressed ; umbilicus narrow, 

 deep and scarcely contracted b}' the proximity of the reflected 

 lips ; base somewhat convex. Greater diameter 5.9, lesser 5.3, 

 alt. 3.6 mm. A smaller specimen greater diameter 5.6, lesser 

 4.9, alt. 3.5 mm. Found among roots of strawberry plants in 

 fields near Hayesville, Clay Co., N. C. Miss Annie E. Law. 

 Cabinet of Isaac Lea, LL.D., Philadelphia. 

 Cabinet of the Academy of j!^atural Sciences, Philadelphia. 

 Remarks. Under the present system of classification the above 

 described shell will, no doubt, be regarded as coming within the 

 limits of the subgenus Mesodon. Possibly a revision of sub- 

 genera might with propriety be made to set this species apart. 

 The shell is about of the size and form of helicina (Ologyra) 



