1§8 AMERICAN JOURNAL 



NOTES ON THE LAND SHELLS OF EAST TENNESSEE. 



BY JAMES LEWIS, M. D. 



I am indebted to Miss Annie E. Law, of Concord, Tennessee, 

 for the material on which the following notes are based. Very 

 likely other species than those included herein may hereafter be 

 found in the region accessible to Miss Law ; but any such may 

 be regarded as exceptional or very rare, and not likely to be pre- 

 sented in such numbers as to throw much light on species. The 

 species and well marked varieties number 33. Some of them 

 were presented to my notice under circumstances well calculated 

 to impress me with the idea that they were new species. But re- 

 garding them as more likely to be favorably received as remark- 

 able varieties of known species, I present them in this list under 

 that form of treatment. 



1. Helix albolabris, Say, var. A limited number of 

 specimens of rather small size, depressed spire and light color 

 are all I have seen. Evidently a rare variety. 



2. Helix alternata, Say. An abundant species of large 

 size, light color — those found in the valley of the Holston being 

 lighter than those found in Monroe county on elevated land. 

 The young specimens are much disposed to be carinate. 



3. Helix alternata, Say, var. costata. A smaller shell 

 with a more depressed spire, strongly marked striae or ribs. 

 Not abundant. 



4. Helix appressa, Say. Small var. A somewhat abun- 

 dant shell. 



5. Helix capsella, Gould, (Plate 12, figs. 1, 2.) A rare 

 species found in Monroe county, on hill sides, associated with 

 If. suppressa, Say. When first presented to my notice I was 

 disposed to regard it as a new species, designing to propose for 

 it the name Helix [Hyalina) 3Ionroensis. My specimens have 



