46 4 A MANUAL OF AMERICAN LAND SHELLS. 



the lingual membrane of hispida with centrals having a long, narrow 



base of attachment, a stout, pear-shaped, unicuspid reflection; laterals 



bicuspid ; marginals a simple modification of the laterals. I do not 



find it so in rufescens (see below). Other species are also figured by 



Lehmann. » 



Friiticicola hi<$pi<la, Linn. 



Shell openly umbilicated, suborbiculately depressed, born-color, shin- 

 ing, with short hairs; spire convex; whorls 5 to 6, rather 

 convex, narrow; aperture broadly lunate; peristome spread- 

 ing, thickened with white within, its basal terminus more nar- 

 row, prominent, and acute. Greater diameter 10, lesser 9™™; 

 height, 5J">"". 



Helix Msjnda, Linn.eus, Syst., 675, &c.— Pfeiffer, Mon. Hel.Viv., i, 148. 

 F. hispida. jj,fgro„,ia MsjmJa, Tryon, Am. Jonrn, Conch., ii, 308, pi. v, fig. 2 (1866). 

 Fruiicicola hispida, W. G. Binney, Terr. Moll., v, 343. 



This is a European species which has been found at Halifax, Nova 

 Scotia, probably accidentally introduced from England on plants. 



Moquin-Tandon figures the jaw of a French specimen as slightly 

 arcuate; ends rounded, somewhat attenuated; anterior surface with 

 numerous ribs, denticulating the concave margin. Fig. 504. 



For dentition see above. I have no'; myself had an opportunity of 

 examining the dentition. 



The genitalia are figured by Lehmann (Lebeuden Schnecken, Plate 

 XII, Fig. 35. The penis sac is double, always consisting of one upper 

 small, and one lower wider, division, making the whole system of sacs 

 quadripartite ; in each of these lower divisions is a small conical dart 

 with apex slightly recurved. 



H. pJebeium, var. of hispida, has been credited to North America by 

 Prestwich, Quart. Journ. Geol. Soc, XXVII, 493. 



Friiticicola rufescens, Pennant. 



Shell umbilicated, subglobose depressed, subcarinate, striate, pale 

 Fig. 506. 'reddish ; spire moderately elevated ; whorls 6, rather convex, 

 the last banded with white, not deflected anteriorly ; aperture 

 ovate-lunar ; peristome spreading, thickened with white at 

 some distance within, the columellar margin somewhat re- 

 flected. Greater diameter 11, lesser 10™"" ; height, 6™™. 



Helix rufescens, Pennant, &c., — Pfeiffer, Mon. Hel. Viv., i, 141. — W. G. 



Binney, L. & Fr.-W. Sh., i, 159, lig. '.^TS (1869). 

 Hygromia rufeseeiis, Tryon, Am. Jouru. Concb., ii, 301, pi. v, fig. 1 (1866). 

 Fruticicola rufescens, W. G. Binney, T. M., v, 346. 



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



