HELIX. 9Y 



those on the sides and posterior part of the foot, when ex- 

 ammed by a microscope, exhibit numerous sub-cutaneous 

 white dots, or points, arranged in clusters. Length 

 equalling twice the diameter of the shell. 



Shell. Convex, ventricose ; epidermis uniform yel- 

 lowish or brownish horn-color ; whorls six, with numerous 

 coarse, raised, parallel strije, the body whorl very large 

 and turgid ; suture deeply marked ; aperture rounded, 

 contracted by the lip, and small in proportion to the size 

 of the shell ; lip white, thickened, reflected, inner mar- 

 gin near the base of the sheU projecting, more or less 

 prominent and tooth-like ; umbilicus covered ; base thick- 

 ened with a testaceous callus in old specimens. 



Greatest diameter one inch and three-quarters. 



Geographical Distkieution. This species is found 

 in Tennessee, South Carolina, Georgia, Alabama, and 

 Florida, and probably in other Southern States. It is com- 

 mon in hickory and oak woods, near streams in Florida. 



Remarks. This is the largest HeUx hitherto discov- 

 ered in the United States. It is not uncommon in cab- 

 inets, but has generally been considered to be a large 

 variety of Helix albolahris. Say. This was probably 

 Mr. Say's opinion, as the specimens figured by F^russac 

 were received from him. Some acquaintance with the 

 species in its native habitat, and comparison of a large 

 number of specimens with Helix albolahris, have induced 

 me to give it a place as a distinct species. It cannot be 

 confounded ^vith any other than that shell, and differs 



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