PAGODULINA. 169 



1. Pagodulina pagodula (Desm.). PL 20, figs. 1 to 4. 



The shell is imperforate but with a long, deep, J-shaped 

 basal suture, cylindric-oblong, cinnamon-buff, with little lus- 

 ter. The whorls are quite convex to the last, which is im- 

 pressed around the middle; its last half is straightened and 

 ascends steeply across the penult whorl, almost to the pre- 

 ceding suture ; the base being rounded. The first 1% whorls 

 appear smooth (but are microscopically very densely pitted), 

 subsequent, whorls ribbed, the ribs straight, retractive, hardly 

 one-fourth as wide as their intervals, about 7 to 10 in 1 mm. 

 on the face of the penult whorl, microscopic striae between 

 them ; on the last half of the last whorl they become crowded, 

 the intervals hardly more than half as wide as before. The 

 aperture is somewhat oblique, the lower margin being ad- 

 vanced, in shape indistinctly triangular. The peristome is 

 brown-tinted, reflected ; the outer margin is bent in and thick- 

 ened inwardly above the middle, the parietal margin is typi- 

 cally a little raised, continuous (but often is adnate) ; colu- 

 mellar margin concave, reflected. The cavity of the last 

 whorl, in its first half, is narrowed by a strong, obliquely de- 

 scending columellar plate, reaching to the basal wall, a strong 

 and long palatal fold, and a smaller but long spiral lamella 

 on the upper wall. 



Length 3.85, diam. above aperture 1.85 mm. ; 8V2 whorls. 

 Provence. 



Length 3.5, diam. above aperture 1.85 mm. ; 8% whorls. 

 Grenoble. 



Length 3.3, diam. above aperture 1.8 mm. ; 8 1 /* whorls. 

 Marseilles. 



Southern France, from Dep. Dordogne (near the chateau 

 of Lanquais a trois lieues de Bergerac, type locality) and Puy- 

 de-Dome, east to Dep. Haute-Alpes and southward; Alpine 

 and neighboring regions of Italy and the Tyrol to Croatia, 

 Dalmatia, Montenegro and Rumelia ; sporadically in the 

 Morea; northward in southeastern Bavaria around Reichen- 

 hall and Schellenberg. In damp places under stones and dead 

 leaves; found only in mountainous country, often abundant. 



