HELIX. 105 



callo levi, bi'unneo conjunotis, ad umbilicum parvum et profundum 

 reflexiusculum. 



SYNONYMS AND REFERENCES. 



Helix kojjnodes W. G. Binney, Proc. Acad. Nat. Sc. Phila. 1857, p. 186; Notes, 6. 

 DESCRIPTION. 



Animal not observed. 



Shell depressed globose, wrinkled, below smooth ; spire 

 short, depressed ; suture moderate ; whorls five, rapidly 

 increasing, the last very ventricose and large, sometimes 

 marked with coarse revolving lines ; aperture large, round, 

 lip simple, acute, ends approached, joined by a slight dep- 

 osition of brownish callus over the parietal wall, reflected 

 at the small and deep umbilicus. 



Greater diameter, 35 ; lesser, 28 ; height, 13 millimetres. 



Geographical Distribution. Found in Alabama in con- 

 siderable quantity by C. S. Hale, Esq., and Dr. E. R. 

 Showalter. 



Remarks. I was at first inclined to consider it an 

 unnaturally developed form of fulig-inosa, but have since 

 been convinced of its being distinct by large suites of 

 various stages of growth. The color is lighter, the shell 

 larger, heavier, less globose ; the umbilicus is narrower ; 

 the aperture larger, and less rounded ; the spire less ele- 

 vated. The heavy, interrupted revolving lines are present 

 in four out of six specimens before me. 



Reeve's figure 672 has some resemblance to it in shape, 

 though less globose, and described as striate. 



HELIX FULIGINOSA Binney vol. ii. p. 222, pi. xxxi. 



Helix fuUginosa Chemnitz, ii. 104. 

 Pfeiffer, iii. 83. 

 Reeve, Con. Icon. No. 675, (1852). ? 



This can hardly be the species designated by Ferussac 

 as H. IcBvig-ata. His figure and the opinion of Deshayes, 



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