^70 



A MANUAL OF AMERICAN LAND SHELLS. 



Genital system (Terr. Moll., Y, Plate XV, Fig. I) long and slender, 

 especially the ovary and oviduct; vagina long, receiving tbe duct of the 

 genital bladder below its middle, and the sac of the penis still lower 

 down ; penis sac long, tubular, of about same width as the vagina, with 

 a prominent bulb at its apex, into the end of which is inserted the vas 

 deferens ;ind at the side of which the retractor muscle i^ artached; 

 genital bladder moderate, oval, on a duct of about equal length and 

 size as the vagina. 



Polygyia fnsti^aiis L W. Say. 

 Shell rimately perforated, plane above, inflated below, with fold-like 

 F^^ striae above, smoother below, somewhat shining, of a russet 

 horn-color, hirsute; spire flattened; whorls ^, flattened, 

 the last acutely carinated above, very abruptly deflected at 

 the aperture, scrobiculated, constricted, convex below; 

 aperture very oblique, subreniform, very much contracted, 

 tridentate; within the base of the last v^^horl is a small, de- 

 tached, ere.ct, lounded tubercle; peristome white, reflected, 

 p.fast<i;ans. jts terminations joined by a stout, subtriangular, excavated, 

 deeply entering tooth, the right-hand margin with a stout, deeply 

 seated tooth, the columellar margin with a submarginal smaller tooth. 

 Greater diameter 10, lesser 9'"'"; height, about 4'"'". 



Polygyrafalifjiata, Say,! N. Harm. Diss., ii, 229 (1829); ed. Binney, 37. 



Helix fatu/iaia, BixNNey, in Bost. Jouru. Nat. Hist., ill, 388 (1840), ex parte (excl. 

 syu. et tig.); Terr. Moll., ii, 193 (pais), pi. xxxix, fig. 4 (excl. 8yn.).-SHUT- 

 TLEWORTH, Born. Mitt., 1852, 197— Bland, N. Y. Lye, vi, 283. pi. ix, ligs. 17- 

 20 (18r)8).— W. G. Binne\, Terr. Moll., iv, 82; L. & Fr.-W. sii., i, 97, fig. 173 

 (1869).— Pfeiffer, Mou. Hel. Viv., iv, 318. 



Helix Texamnia, /?, Pfeiffer, Men. Hel. Viv., i, 418; iii, 2«7; in Chemnitz, ed. 2, i, 

 86, excl. descr., syu., et fig.— Deshayes, in Fer., i, 74, excl. descr.' syn.,'et 

 fig. 



Helix DorfeuiUiana, Deshayes, in Fer., i, 73 (excl. syu.), pi. Ixix, D, fig. 3, not of 



Lea. 

 Helicinafastif/iata, De Kay, N. Y. Moll., 82 (1843). 

 Helix fastUjans, L. W. Say, MS. in Bland, Ann. N. Y. Lye, vii, 140. 

 Dwdalovhila fastigans, Tkyon, Am. Jouru. Couch., iii, 67* (1867). 

 I'oliigijrafastifjans, W. G. Binney, Terr. Moll., v, 273. 



A species of the Cumberland Subregion, found in Tennessee at 

 Olarkeville and Nashville and in Franklin County, and in Kentucky in 

 Henry County-. 



*Tho hirsute epidermis is not sliown in the figure. 



tThis uame, or XAthai: fastigiata, for which it was intended, is uot preoccupied in 

 rolijgyra, hut it is not in accordance with the est.nblished rules of nomenclature to 

 iibandon a specific name after it has become firmly established. 



