136 HELICID^E. 



19. HELIX PALLIATA, SAY. 

 PLATES XIV., XV. 



H. testa orbiculato-depressa, imperforata, castanea, hir- 

 suta ; anfractibus minute striatis ; apertura angusta, trilo- 

 bata ; labro albo, late reflexo, dentibus duobus instructo ; 

 columella dente unico sub-arcuato, armata. 



SYNONYMS AND REFERENCES. 



Helix palliata, SAY, Journ. Acad. II. 152, anno 1821. 



KIRTLAND, Ohio Report, 173. 



SAGER, Michigan Catalogue, 14. 



BINNEY, Bost. Jour. Nat. Hist. III. 353, pi. 7. 



DE KAY, New York Report, 31. 



ADAMS, Mollusca, 9. 

 Helix obstricta, SAY. loc. cit. II. 154. 

 Helix denotata, FERUSSAC, Tab. 38, No. 102, anno 1822. 



Hist. &c. pi. 49. a. f. 5; pi. 50. a. f. 7. 



DESHAYES in Lamarck, VIII. 115. 



Helix notata, DESHAYES, Encyc. Meth. II. 224, No. 28. 

 Helix Caroliniensis, LEA, Am. Phil. Trans. IV. 108, pi. 15, f. 33. 

 Carocolla helicoides, LEA, loc. cit. IV. 159, pi. 15, f. 34. 



DESCRIPTION. 



ANIMAL. Of a uniform, blackish, slate color over the 

 whole upper surface ; foot narrow, in length double the 

 diameter of the shell, and terminating in an acute point ; 

 superior tentacles one-third of an inch long ; eyes not 

 distinguishable from the general color. 



SHELL depressed ; epidermis dark brown or chest- 

 nut color, and rough with minute, acute projections and 

 stiff hairs ; whorls five, flattened above and rounded 

 below, with numerous very fine, oblique striae ; aperture 



