ABIDA. 287 



The aperture has a distinct sinulus, the lip retracted there. 

 The angular lamella is calloused on the right at its junction 

 with the lip. There is no spiral lamella. The strong parietal 

 lamella enters to a dorsal position. Columellar and subcolu- 

 mellar lamella are short, remote from the lip; the former is 

 steeply oblique. The upper palatal plica emerges into the 

 peristome, which the lower palatal barely reaches. Both be- 

 come weak deep within, and in the back are emphasized, form- 

 ing strong teeth. The basal plica is small and slender, inter- 

 rupted within, but represented by a tubercle below the palatal 

 teeth of the inner barrier. Beyond the inner barrier the pala- 

 tal plicae extend very weakly, so that they are visible on the 

 outside in a lateral view of the left side of the shell. Length 

 6.4, diam. 2 mm. ; Sy 2 whorls, or a little longer. 



Bourguignat's figures represent the aperture as larger than 

 in those of Kuester (copied in pi. 44, fig. 12), or the specimens 

 I have seen, figured in pi. 44, figs. 7, 10. 



I have not seen Boubee's Bulletin, in which this form (or 

 an allied one, according to Bourguignat) was described as 

 Pupa transitus or trcmsiens. 



A. vergnesiana provida Westerlund. PL 44, fig. 11. 



Aperture with the upper columellar tooth of moderate size, 

 deeply placed, the lower very small or obsolete; 2d and 3d 

 palatal teeth produced inward only half as far (duplo brevius) 

 as in the type. Pyrenees ( West. ) . 



P. (Torquitta Faure-Big.) vergniesicma, (Ch.) var. provida 

 WESTERLUND, Nachrbl., 1902, p. 39. 



I take this to be a form in which the palatal plicae only reach 

 the dorsal side weakly, without a distinct inner barrier, such 

 as the specimen (from Terver) drawn in pi. 44, fig. 11. 



14. ABIDA PYRENJEARIA (Michaud). PL 44, fig. 9. 



Shell oblong, nearly cylindric, umbilicus quite open, fawn- 

 colored, glossy, a little transparent, with oblique, longitudinal 

 striae ; 9 whorls, a little convex ; aperture rounded, contracted, 

 and armed with 5 or 6 folds ; peristome white, reflected, nearly 

 margined and continuous, the lateral margin elbowed or in- 



