HELIX. 227 



60. HELIX INORNATA, SAY. 

 PLATE XXXIV. 



H. testa orbiculato-depressa, perforata, luteo-cornea, Isevi- 

 gata, nitente ; anfractibus quinque ; apertura transversal, intus 

 incrassata ; labro simplici, tenui, acuto ; basi impresso. 



SYNONYMS AND KEFERENCES. 



Helix inornata, SAY, Journ. Acad. II. 371. 



KIRTLAND, Ohio Report, 173. 



SAGER, Mich. Catalogue, 14. 



BINNEY, Bust. Journ. Nat. Hist. III. 419, pi. 21. f. 3. 



DE KAY, Nat. Hist. New York, 39. 



ADAMS, Vermont Mollusca, 11. 



PFEIFFER, Monog. Helic. Viv. I. 84. 



DESCRIPTION. 



ANIMAL. Head, neck, and tentacles bluish black ; 

 foot whitish. Superior tentacles long and slender. A 

 marginal furrow extending along the edges of the foot, 

 and uniting above and before its posterior termination. 

 Behind the junction is a prominent, sub-conical, bluish- 

 white gland, on the extremity of the foot. 



SHELL depressed ; epidermis yellowish horn-color, 

 smooth, shining, with very minute lines not breaking the 

 smoothness of the surface ; whorls five ; suture not much 

 impressed ; aperture transverse, with a thick, white, 

 testaceous deposit around its w r hole inner surface, a little 

 distant from the margin ; lip thin, acute, fragile, its 



