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474 



Binney^s Monograph of the Helices 



ShelL Convex^ ventricose : epidermis uniform yellow- 

 ish or brownish horn color: whorls six, with numerous, 

 coarse, raised, parallel striae: the body whirl 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 

 margin near the base of the shell, projecting, more or 

 less prominent : umhilicus covered : base thickened with 

 a testaceous callus in old specimens. . 



Greatest transverse diameter one inch and a half- 

 Geographical DISTRIBUTION, This spccIes is found 

 in Georgia, Alabama, and Florida, and probably in others 

 of the Southern States. It is common in hickory and oak 



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woods near streams, in Florida* 



Remarks. 



This is the largest Helix hitherto discov- 



* 



ered in the United States. It is not uncommon in cabinets, 

 but has been generally considered a large variety of H. 

 allolahris, Say. This was probably Mr. Say's view, as 

 the specimens figured by Ferussac were received from 

 him. Some acquaintance with the species in its native 

 habitat, and comparison of a large number of specimens 

 with H. allolabris have induced me to give it a place as 

 a distinct species. It cannot be confounded with any 

 other than that shell, and differs from it in the following 

 particulars. 



It is much more globose, of a coarser and more solid 

 texture, and the striae of increase are much more raised 

 and prominent, so much so indeed, as to leave distinct 

 grooves between them. The longitudinal striae, so distinct 

 on that shell, are either wanting or very indistinct. The 

 aperture is smaller in proportion to the size of the shell, 

 less flattened towards the plane of the base, and more 

 rounded. The pillar lip, and umbilicus are in many cases 



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