382 A MANUAL OF AMERICAN LAND SHELLS. 



same group bitberto found on tbe North American continent. Com- 

 l^ared with ^xiludosa, Pfr., of Cuba, tbe rib-like strife are more regular 

 and prominent, it is more decidedly angular at the periphery, and the 

 form and armature of tbe aperture are different. In Fehigeri there is 

 no such excavation below tbe angle of the periphery as prevails, more 

 or less, in the other above-named continental species. In this respect, 

 and in the form of tbe aperture, Fehigeri appears to be most nearly 

 allied to microdonta, Desb., of Bermuda and New Providence, but it is 

 more coarsely striated and the last whorl is more inflated below. 



Jaw as usual ; 10 ribs. 



P. Fehigeri (Terr. Moll., V, Plate VI, Fig. J) has 17-1-17 teeth on 

 the lingual membrane, with 9 laterals, the tenth tooth having a bifid in- 

 ner cutting point. 



Genitalia as in P. septemvolva , cereolus, and Garpenteriana. 



Polygyra pustula, Y±r. 



Shell umbilicated, orbicularly depressed, minutely striated, reddish 

 or pale horn-color, hirsute; spire scarcely elevated; whorls 4^, flat- 

 FiGMifi* tened, gradually increasing, the last more convex below, 

 deflected at tbe aperture, constricted behind the peristome; 

 umbilicus broad, pervious, with a deep groove marked 

 within tbe shell by an internal, revolving, ridge-like la- 

 mella, branching from a stout, transverse, internal tuber- 

 cle ; aperture very oblique, narrow, sinuously lunate ; \iei:'\- 

 I'.pustxda. stome sinuous, white, thickened, acute, somewhat reflected, 

 its terminations joined by a two-forked, elevated, acutely pointed lam- 

 ina, the basal margin with two approximated acute denticles, the colu- 

 mellar termination entering and somewhat covering the umbilicus. 

 Greater diameter 5, lesser 4"'™ , height, 2^"'™. 



Helix pusiula, Ferussac, Hist., pi. 1, lig. 1. — Desha yes, in Fer., i, 78, t. 1, fig. 1. — 

 Pfeiffer, Sj-mb., iii, 81 ; Mou., i, 422 ; iv, 268, excl. /3 ; in Chemnitz, ed. 2, 

 i, 376, pi. Ixv, figs. 18-20 (1846).— Eeeve, Con. Icon., 721 (1852).— Bland, 

 Ann. N. Y. Lye, vi, 346, fig. 1 (1858).— W. G. Binnev, Terr. Moll., iv, 94, pi. 

 Ixxvii, fig. 12; L. & Fr.-W. Sh., 1, 109 (1869).— Not of BiNNEY. 



Dcedalochila pusiula, Tkyon, Am. Journ. Concli., iii, 62 (1867). 



Folygyra pustula, W. G. Binney, Terr. Moll., v, 286. 



A species of tbe whole Sowtbern Region, having been received from 

 Texas; Cedar Keys, Little Sarasota Bay, Saint Augustine, Florida; 

 South Carolina ; and Lee County, Georgia. 



The groove within the umbilicus is a very marked feature in F^rus- 



The figure does not show the hirsute character of the shell. 



