128 



LAND AND FRESH-WATER SHELLS OF N. A. [^PART I, 



Cat. No. iNo.ofSp. 



Locality. 



St. Louis, Mo. 

 Cliarleston, S. C. 

 Ft. Bl•ia^'er. 

 Taylor Couoly, Ga. 



Illinois. 

 Ohio. 



From whom received. 



W. Stimpson. 

 Lieut. Bryan. 

 Dr. H. M. Neisler. 

 W. G. Binney. 

 K. Kennicott. 



a. True locality? 

 [W. G. B. 

 Cab. series. 



Helix Uifiecta. 



Helix inflecta, Say. — Shell with the umbilicus closed, depressed ; 

 epidenuis brownish horn-color, with very fine, hair-like projections ; whirls 

 five, with very minute, transverse striae ; suture not much impressed ; 

 aperture three-lobed, very much contracted ; peristome white, narrow, re- 

 flected, with a deep groove or 

 Fig. 216. indentation behind the reflec- 



tion, contracting the opening 

 so that the outer edge of the 

 peristome does not project be- 

 yond the surface of the whirl ; 

 on the inner margin of the 

 peristome are two acute teeth, 

 with the points directed in- 

 wards, one near the base, the other midway between that and the junction 

 of the peristome with the body-whirl, with a circular sinus between them, 

 forming one of the lobes of the aperture ; parietal wall with a long, 

 arcuated, white tooth ; umbilicus covered, its place considerably im- 

 pressed. Greater diam. 12, lesser 11 ; height G§ mill. 



Helix inflecta, Say, Journ. Phila. Acad. 11, 153 (1821) ; ed. Binney, 16.— 



Binney, Bost. Journ. Nat. Hist. Ill, 358, pi. ix, f. 1 (1840) ; Terr. 



Moll. II, 143, pi. xlv, f. 2, 3.— DeKay, N. Y. Moll. 45 (1843).— Mks. 



Gkay, Fig. Moll. An. pi. cxciii, f. 7 (ex Bost. Journ. no descr.). — 



W. G. Binney, Terr. Moll. IV, 59.— Bland, Ann. N. Y. Lye. VII, 



425.— Pfeiffer, Mon. Hel. Viv. IV, 319. 

 Helix clausa, Fekussac, Tab. Syst. 38, no. 104 ; Hist. pi. li, f. 2.— De- 



shayes, Encycl. Meth. II, 252 (1830) ; in Lamakck, VIII, 114; ed. 



3, III, 309; in Fee. I, 143.— Pfeiffer, Mon. Hel. Viv. 1,420; in 



Chemnitz, 2d ed. I, 368, t. Ixiv, f. 25, 26. — Reeve, Con. Icon. no. 



704 (1852). 

 Xolotrcma clausa, Rafinesque, Enumeration, &c. 3 (1831) ; ed. Binney 



and Tkyon, 68. 

 Isognomostoma inflecta, Tryon, Am. Journ. Conch. Ill, 54. pi. ix, f. 10 (1867). 



From Texas to the Appalachian chain in Pennsylvania and 

 New York ; from Georgia through the northwestern States ; also 

 in the postpleioeene of the Mississippi Valley. 



The large specimen figured is from University Place, Tenn. 



